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Recently the project market for mainframe programmers is improving and remember the DB2 professions, I thought of creating a compilation of db2 interview questions with answers.
What will you mean by foreign keys?
Ans:- Foreign keys are column or mixture of columns in the table that contain matching value in primary key of one other table, thus maintaining relationships between tables.
Ans:- Normalization can be a procedure for reducing redundancy of knowledge and representing data in tabular format.
Ans:- A data page is really a unit of internet data which could be retrieved. It might be either 4K or 32K based on the way table is scheduled.
ANS:- A DB2 bind is often a process that builds an access path with the application to your relational database DB2 tables. DB2 bind process does the following
Validates: - Sql statements are validated for valid tables, view and column names. Syntax errors are checked in order that these may be corrected.
Verifies:- Bind process verifies which the user or process is authorized to bind the master plan.
Selects:- Selects the access path in the application program for the DB2 objects.
Ans:- An access path would be the method accustomed to access relational data specified by DB2 SQL statements.
What is tablespace and the are of how several types?
Ans:- Tablespaces are just like containers for storing the tables. Tables usually are not physical objects while tablespaces are physical objects. There are three kinds of tablespaces: simple, segmented and partitioned.
What is cursor stability?
Ans:- Cursor stability is usually a type of isolation level that makes sure which the data read by a credit application program is locked only while its used, right after the cursor moves away to another page of information the lock about the previous page is released to ensure other programs can access the information for updation. This form of isolation level is on top of concurrency but have less integrity of knowledge.
How to fetch data from many table inside a single SQL statement?
Define view and Why it can be used?
Ans:- A view is usually a virtual table containing data from a single or more tables, but this details are not stored within a separate spaces.
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Recently the work market for mainframe programmers is improving and don't forget the DB2 universities, armed forces, I thought of discovering a compilation of db2 interview questions with answers.
What will you mean by foreign keys?
Ans:- Foreign keys are column or blend of columns in the table that contain matching value in primary key of one other table, thus maintaining relationships between tables.
Ans:- Normalization is often a procedure for reducing redundancy of knowledge and representing data in tabular format.
Ans:- A data page is usually a unit of knowledge which could be retrieved. It could possibly be either 4K or 32K with regards to the way table is scheduled.
ANS:- A DB2 bind is really a process that builds an access path on the application on the relational database DB2 tables. DB2 bind process does the following
Validates: - Sql statements are validated for valid tables, view and column names. Syntax errors are checked making sure that these is usually corrected.
Verifies:- Bind process verifies that this user and the process is authorized to bind the program.
Selects:- Selects the access path on the application program to your DB2 objects.
Ans:- An access path would be the method utilized to access relational data per DB2 SQL statements.
What is tablespace these are of how many different types?
Ans:- Tablespaces are similar to containers for storing the tables. Tables usually are not physical objects while tablespaces are physical objects. There are three varieties of tablespaces: simple, segmented and partitioned.
What is cursor stability?
Ans:- Cursor stability is usually a type of isolation level that makes sure the data read by a credit application program is locked only while its used, the moment the cursor moves away to another page of internet data the lock for the previous page is released to ensure that other programs can access your data for updation. This form of isolation level is at the top of concurrency but have less integrity of web data.
How to fetch data from multiple table in a very single SQL statement?
Define view and Why it really is used?
Ans:- A view is really a virtual table containing data from a single or more tables, but this details are not stored inside a separate spaces.
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Question.1 What is Query parameter in SSRS?
Answer: Query parameters is mentioned inside query from the datasources that happen to be to be included in the SQL scripts WHERE clause from the SQL which could accept parameters. Query parameters commence with the symbol name must not contain spaces and may not get started with numeral. For clarity, we exclusively use letters.
Question.2 What include the Reporting Service Components in SSRS?
Answer: Report Designer: A place where we are able to create report. Report Server: Provides services for implementation and delivery of reports. Report Manager: A Web-based administration tool for managing the Report Server.
Question.3 What can be a matrix in SSRS?
Answer: A matrix can be a data region linked with a report set. Matrix permits us to create crosstab reports with all the report variables displaying on rows and columns. It permits us to drag and drop fields engrossed.
Question.4 What are sub reports and ways to create them?
Answer: A sub report is a lot like any other reports which may be called in main report which enable it to be generate through main report. Parameters could be passed from main report to sub report and reasons for that report may be generated.
Question.5 What may be the report model project?
Answer: Report model project is perfect for creating Adhoc reporting. You can create the adhoc reports through report builder. Report model project may be created on bids or report server. This model might have simple view. And using
Question.6 What is report server project?
Answer: Report Server Project offers the RDL file also it need to become deployed on report server to see the report files to application and user. It an alternative where we design our reports. You can add it by commencing BIDS simply clicking on new item and after that selecting reports server project. Once the option is created you can begin creating reports.
Question. 7 What may be the report builder?
Answer: Report builder is accustomed to create small reports and it also a define interface. You cant alter the report interface in report builder it pre designed. You can just drag columns inside report. Report builder creates reports on database objects provided by report model project.
Question.8 In which SQL Server version report builder introduced?
Answer: Report builder introduced in SQL Server 2005. While creating or deploying report model project on report server you can obtain error or it will not get created. For this you should check regardless of if the service pack 22 is installed or otherwise not.
Question.9 How to deploy the Report?
Answer: Report may be deployed in three ways.
1. Using visual studio: In visual studio it is possible to directly deploy the report through solution explorer by the report server URL in project properties at Target Server URL. This will deploy entire project or single report according to you selection.
2. Using report server: Can directly go towards the report server and deploy the report by browsing the report from your disk location on server.
3. Creating the utility: SQL server supplies the utility using that which is often used to make a customize utility to your report deployment in big amounts.
Question.10 What is utility?
Answer: utility is needed for deploying the directory report server. It comes together with the report server which enable it to be customize accordingly.
Question.11 What would be the name of reporting services config file and whats its useful for?
Answer: Reporting service config file is employed for report configuration details. It provides the report format plus the report import types. Report service config reside at ISS.
Question.12 What include the three different a part of RDL file explain them?
Answer: In visual studio RDL files has three parts.
1. Data: It is the dataset where we write the query. Data set is linked with data source.
2. Design: In design it is possible to design report. Can create tables and matrix reports. Drag columns values from source.
3. Preview: to look for the preview as soon as the report run.
Question. 13 Which language rdl files crafted from?
Answer: RDL files are developed in XML.
Question.14 What would be the chart in report?
Answer: Chart reports are for graphical representation. You can get pie charts columns harts and various other options. 3d charts are also available in reporting services.
Question.15 What is Data Set in report?
Answer: Data set include the set of knowledge which we would like to show in report. Data creates on collection. Data source would be the source of internet data from where we're also getting this data database server and database name connection string.
Question.16 What include the different types of knowledge sources in SSRS?
Answer: SSRS use different repository. Some of them are listed below.
5. SQL Server Analysis Service
Question. 17 What will be the web service useful for reporting services?
Answer: Reporting Service Web Service employed in SSRS. By accessing this web service you may access all report server component as well as get the report deployed on report server.
Question.18 How to add the custom code in Report?
Answer: To add the custom codes in report visit report tab at the top then properties there you may find the selections for custom code.
Question. 19 What is usually a cache in SSRS?
Answer: Report server can lay up a duplicate of processed report in the memory and return the copy any time a user opens the report. This server memory is called cache as well as the process is named caching.
I want to compile the many COBOL INTERVIEW QUESTIONS IN PDF, but until I get time, please manage together with the following:-
A sentence in COBOL is made of one or maybe more than statements terminated with a period?
A level 77 will start in any of AREA A or AREA B?
RENAME in COBOL is not employed to regroup elementary items in the group?
B In Most compilers environmental surroundings division must retain the configuration section.
C Environment division has each of the rules to fix any problem.
Which one in the following is incorrect?
Which one on the following isn't a valid statement?
Which you are incorrect inside the following?
Which one in the following is false concerning the SET verb?
Which with the following statements are false?
B Indexing can be a must, if search verb is to become used on the table
Which in the following might not take place any time a file on Tape is opened in INPUT mode?
Which on the following won't provide options to put in place special procedures for handling input-output errors or exceptions in COBOL?
Which on the following is false when procedures are used while using sort verb?
Firstly Hartley many thanks for these imp interview ques s.
And one request from my side, pls provide you with the PDF for these the many COBOL INTERVIEW QUESTIONS.
Thanks when deciding to take time out and compiling and helping us out!!!
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I decide to compile every one of the COBOL INTERVIEW QUESTIONS IN PDF, but until I get time, please manage together with the following:-
A sentence in COBOL contains one if not more than statements terminated using a period?
A level 77 can begin in any of AREA A or AREA B?
RENAME in COBOL is not utilized to regroup elementary items in a very group?
B In Most compilers the earth division must include the configuration section.
C Environment division has all of the rules to resolve any problem.
Which one with the following is incorrect?
Which one with the following isn't a valid statement?
Which is incorrect within the following?
Which one in the following is false regarding the SET verb?
Which with the following statements are false?
B Indexing can be a must, if search verb is to become used with a table
Which on the following may well not take place each time a file on Tape is opened in INPUT mode?
Which with the following will not provide options to setup special procedures for handling input-output errors or exceptions in COBOL?
Which on the following is false when procedures are used using the sort verb?
Firstly Hartley many thanks for these imp interview ques s.
And one request from side, pls give you the PDF for these every one of the COBOL INTERVIEW QUESTIONS.
Thanks when planning on taking time out and compiling and helping us out!!!
There are 0 users online.
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1-800-FLOWERS implements a technology roadmap use a single view from the company to its customers.
This client reference video showcases s success with multiple IBM product or service.
teamed with IBM to implement IBM WebSphere Commerce for 2 of its gift food brands just as one initial evidence of concept for that platform. Using knowledge gained using this first rollout, the business will take an increased role in transitioning most of that other brands to your new platform in the coming year.
1-800-GOT-JUNK? was hoping to get more personal to use communications, using dynamic content and automated programs to help you increase loyaltyrevenue. Implementing IBM Silverpop Engage triggered increased e-mail marketing effectiveness, including a 20% open rate for messages within the Customer Loyalty Program a 4.3% conversion rate on automated email
1-800-GOT-JUNK? was hoping to get more personal to use communications, using dynamic content and automated programs to help you increase loyaltyrevenue. Implementing IBM Silverpop Engage triggered increased marketing via email effectiveness, including a 20% open rate for messages from the Customer Loyalty Program a 4.3% conversion rate on automated email
To drive revenues, deployed IBM WebSphere Commerce, enabling it to shape higher-quality customer journeys that boost conversion by as much as 20 percent.
Seeking to assist retailers launch omnichannel loyalty programs, IBM Business Partner 500friends, Inc. streamlined integration of the company's LoyaltyPlus Enterprise platform with IBM WebSphere Commerce and IBM ExperienceOne solutions, helping retailers maximize customer lifetime value and boost ROI.
This paper describes an implementation with the SAP Business Suite on IBM i logical partitions running on IBM Power Systems servers at 7-Eleven Stores Pty Ltd, Australia. It describes the historical background, the actual hardware and software landscape, and future project plans.
At the NexTargeting conference in May 2011, IBM Netezzas Brad Terrell and x1s Leon Zemel delivered an exhibit entitled, Marketing in Real Time - The Technology Data Imperative. This video presents highlights from that presentation.
1-800-FLOWERS implements a technology roadmap use a single view from the company to its customers.
This client reference video showcases s success with multiple IBM product or service.
teamed with IBM to implement IBM WebSphere Commerce for two main of its gift food brands being an initial proof concept to the platform. Using knowledge gained with this first rollout, the organization will take a larger role in transitioning most of the company's other brands for the new platform in the coming year.
1-800-GOT-JUNK? was wanting to get more personal in their communications, using dynamic content and automated programs that can help increase loyaltyrevenue. Implementing IBM Silverpop Engage resulted in increased marketing with email effectiveness, including a 20% open rate for messages from the Customer Loyalty Program a 4.3% conversion rate on automated email
1-800-GOT-JUNK? was thinking of getting more personal in their communications, using dynamic content and automated programs to assist increase loyaltyrevenue. Implementing IBM Silverpop Engage triggered increased marketing with email effectiveness, including a 20% open rate for messages from the Customer Loyalty Program a 4.3% conversion rate on automated email
To drive revenues, deployed IBM WebSphere Commerce, enabling it to shape higher-quality customer journeys that boost conversion by around 20 percent.
Seeking to aid retailers launch omnichannel loyalty programs, IBM Business Partner 500friends, Inc. streamlined integration of their LoyaltyPlus Enterprise platform with IBM WebSphere Commerce and IBM ExperienceOne solutions, helping retailers maximize customer lifetime value and boost ROI.
This paper describes an implementation in the SAP Business Suite on IBM i logical partitions running on IBM Power Systems servers at 7-Eleven Stores Pty Ltd, Australia. It describes the historical background, the present hardware and software landscape, and future project plans.
At the NexTargeting conference in May 2011, IBM Netezzas Brad Terrell and x1s Leon Zemel delivered an exhibit entitled, Marketing in Real Time - The Technology Data Imperative. This video presents highlights from that presentation.
Programmers Stack Exchange is really a question and answer site for professional programmers enthusiastic about conceptual doubts about software development. It s 100% free.
As an experienced Java programmer, Ive been seeking to understand - why the hate toward Java for modern web applications?
Ive noticed a trend that outside of modern day web startups, a somewhat small portion of them appears to become using Java as compared to Javas overall popularity. When Ive asked a couple of about this, Ive typically received an answer like, I hate Java which has a passion. But no-one really seems to become able to give a definitive answer.
Ive also heard this same web startup community refer negatively to Java developers - essentially implying actually slow, not creative, old.
As an end result, Ive spent time trying to pick up Ruby/Rails, basically to discover what Im missing. But I cant help thinking to myself, I could try this much faster if I were using Java, primarily as a result of my relative experience levels.
But also because I havent seen anything critical missing from Java, preventing me from building precisely the same application.
Why is Java not being employed in modern web applications?
Is it a weakness with the language?
Is it an unfair stereotype of Java because its been around that long its been unfairly connected with its older technologies, and doesnt receive recognition due to the modern capabilities?
Is the negative stereotype of Java developers too strong? Java is merely no longer cool
Are applications designed in other languages really faster to create, simpler to maintain, and will they perform better?
Is Java only utilised by big companies that are too slow to adapt to a whole new language?
As it currently stands, this question will not be a good fit for Q A format. We expect answers to get supported by facts, references, or expertise, but this question will almost certainly solicit debate, arguments, polling, or extended discussion. If you really feel that this question might be improved and even reopened, go to help center for guidance. If this question could be reworded to suit the rules inside help center, please edit the question.
Graham Lee: Java has been cool? I must ve missed something. Well, I guess it s cold coffee, but cool? I think the reason is that java, specially the enterprise java frameworks have already been and still are heavily overengineered. You can t consider them lightweight, you only use them as you need the distribution/balancing/scalability features on the platform and wish to use a framework with the frontend that may be done with java, too, for your sake of homogeneity. Falcon Aug 18 11 at 14:57
Falcon Java was cool back when it had been first introduced, Sun did a fantastic job hyping Java, whether or not the hype was justified or you cannot has nothing regarding it being cool or you cannot, plenty of cool situations are hyped for absolutely no reason. Mahmoud Hossam Aug 18 11 at 15:40
Falcon, you ought to have a take a look at creating web applications with JSF 2.0 in Java EE 6 and compare it for a experiences. You may be amazed. user1249 Aug 18 11 at 17:10
Modern day startups ought to hit the market as quickly as possible. They dont must spend about few months in order to release their Java web application.
Twitter one example is was built using Rails/Ruby but once it became unscalable, they migrated on the JVM.
Not to mention the development process isnt productive: code - compile - deploy while it really is in frameworks like Rails/Django/Grails: run testing server - code - change things and find out what happens.
The good news is the fact that JRebel permits you to see code changes instantly.
Just seek to get rid of some misconceptions. Java EE isn't the only thing about the Java server side numerous seem to trust. Jonas Aug 18 11 at 16:19
Facebook also does something similar. Their code base is in PHP, but due to speed and scalability problems, that they had to write a compiler HipHop that compiled the PHP to C, that's then compiled using g. It s funny how everybody speaks about how great ruby and PHP are and that every one of the sites are designed around them, but when you have a look at how inefficient these are, most large organizations need to switch to something else entirely. If I recall correctly, Craigs List hasa great deal of backend code designed in C/C with this very reason. Kibbee Aug 19 11 at 13:24
1 Using Eclipse, compilation happens because you type and you should rarely notice. Also, running Tomcat within Eclipse I can restart an app within a second. I m rarely hindered by restarting my apps 2 There s no silver bullet, guys. Ruby or any language doesn t allow you to be 10x faster. The problem with Java dev is normally ramp up time, however, if you know what you do, you may get working in the project in 10 min. alex Dec 14 11 at 22:41
In my experience, Java for web applications is overkill for small applications. A simple blog with one database table hold blog entries, as an example, may very well be done in something incredibly easier.
I have usually seen Java do significantly better in much wider web applications think banks and insurance agencies that communicate having a number of other systems for example mainframe back-ends and databases and peer web-services background batch-processing all inside the same application.
From what Ive seen, the architecture of an JavaEE web application is simply usually over is needed for small/simple web applications.
For small applications, that is even more true if you must because this would be the standard along with the company uses it assist monster application servers like Websphere, whereas usually Tomcat one example is is good Why oh exactly why do I ought to work with that all smudged administration console? Jalayn Aug 18 11 at 14:53
Jalayn: In my experience it s since they only wish to maintain one application server program for everything, as opposed to admin WebSphere for Team A, Tomcat for Team B, Glassfish or something else entirely for Team and I can know that feeling too, but yes, it s frustrating in my opinion as well. FrustratedWithFormsDesigner Aug 18 11 at 15:00
The new Java 6 EE - particularly the web profile - permits some easy to understand webapps. user1249 Aug 18 11 at 17:00
Thorbj rnRavnAndersen The app may very well be simple, but comprehending the framework isn t, and neither is knowing the main tools like Ant or Maven. A newbie s learning curve is very large and brimming with nested layers of acronym soup, confusion between specs eg JAX-RS and impls eg Jackson plus more. It s IMMENSELY complicated some thing simple if you would like actually understand what what you are doing. Craig Ringer Jun 11 12 at 1:19
I programmed java web apps for several years before I switched to python, 4 in years past. I feel that Im considerably more productive using python which enables it to get far more done within a shorter period of energy, and being honest, Im much happier when I develop in python. Here are some with the reasons why I think python is best then Java dependant on my personal experience, your milage may very.
When I first start programming web apps in Java, Struts just became available, and yes it wasnt great, nonetheless it was the good thing available. I made a bunch of struts apps, and a number of in other frameworks along the route. Whenever a fresh framework was released Tapestry, Wicket, GWT, stripe, grails, AppFuse, Play, RichFaces, Spring, etc, I would try it out to see if it was any benefit, and many times it absolutely was only just a little better, and frequently not better in any respect. I do need to say the play framework is usually a step from the right direction.
One from the most annoying areas of Java was the reality that most from the libraries the application of were not contained in java itself, you experienced to include a huge amount of 3rd party libs from places like apache commons. If you use similar to hibernate with another large library, you wind up in Jar dependency hell, where hibernate needs one version of your jar, and another thing needs another version. If you load the jar files from the wrong order, you are beyond luck. You should depend on tools like maven, and ivy to handle your dependencies, and also this just gets more dependencies for your project which leads to projects being huge. I had some war files 100MB war files to the simplest web apps.
For some reason there seems to become way too many ways to do the identical thing in Java. There are over 38 different web frameworks for java in accordance with wikipedia /wiki/ComparisonofwebapplicationframeworksJava and 23 different ORMs /wiki/Listofobject-relationalmappingsoftwareJava in order to name a few examples. If you have a look at other languages these people have a more reasonable number. Some people feel that having lots of options is really a good thing, nevertheless it isnt it leads to plenty of wasted effort inside the developer community, so many people are reinventing the identical wheel, if you are a brand new person for the language you must many choice to pick from.
Java web applications are actually heavy, and require many resources to perform. They are especially memory hungry. Like any computer program they may be tuned to lower their resource footprint, but as compared to other languages their out in the box setup is horrible. In my past I have used weblogic, websphere, Jboss, tomcat, and jetty. I only used the primary three when I was made to use EJBs, but in case you arent using EJBs these were large app servers and frequently hard to configure and acquire running correctly. Tomcat and Jetty are far better and quicker to setup, however are still resource hogs.
If you arent running your personal server it can be real challenging to find shared hosting on your java apps in a reasonable price. The main reason happens because java apps require far more memory when compared with other languages, thus it doesnt sound right for a website hosting provider to invest their valuable RAM building a java site, after they could run 5 php sites within the same place. That means you'll find less providers offering java hosting, which inturn means higher costs to perform your website.
When I developing in java, I found myself much slower then what I can perform in python. I would should make a difference, compile, redeploy after which test, and also this slows down the iterative process. I know you can find ways to get this to faster, but even at its best, I felt much slower then what I are able to do in python.
There is another lot less boilerplate code to do a similar thing in python, so I reduce expenses time developing the code at the same time.
Java just feels over engineered inside a lot of parts, A lot with the APIs and interfaces are only way to complicated for you want to try and do. And everyone and brother thinks these are a java architect this also results in big complicated systems which are hard make use of and develop with.
When I was developing in Java, I felt stuck to your IDE, I was lost without. IntelliJ will be the best IDEs for the market, also it was hard switching to python since there wasnt anything want it for python. So rather than an IDE, I just used textmate, which is merely a normal text editor. It was hard to start with, but because that it was just a text editor, it had been a really fast and responsive application. I could open my whole project inside a few seconds, whereas when I desire to open a project within an IDE it might take a minute or maybe more, using a machine which has a ton of RAM. The makers of IntelliJ came out which has a python editor called pycharm, I bought it if this first was released, and it can be great. But what I realized is the fact that I dont need an IDE for python, Im fine using a text editor. When I get back to working on Java web apps which I should do on occasion, I make an effort to use the writing editor, but I havent quite mastered that yet. I personally want the IDE for Java more because If I ruin something it will take longer to recompile and redeploy, which slows me down.
When I first started using Hibernate being an ORM, I thought that it was great, it had its problems, and yes it wasnt perfect, nonetheless it was better then what I was doing before. I was very happy with it, until I did a software with Djangos ORM with a python project, understanding that opened up my eyes, that's how an ORM should really work. After that project I went back to hibernate, and I just felt disappointed, and longed for time for Djangos ORM. Another great python ORM is sqlalchemy, and that is similar to Djangos ORM, but slightly different. I have limited knowledge about RORs ORM, but from what I remember, it had been pretty good at the same time.
The web templating systems in Java arent that good, and I think I have tried every one of them tiles, freemarker, velocity, etc. Most of them offer only basic functionality and so are a pain to use. On the Python side, my two favorites are Django templates and Jinja2, they've already everything that I could need in the templating engine, and can be extremely easy make use of.
I m along with you on many points, but take problem with some. Compile/test loop : Use Eclipse s dynamic web module, and/or JRebel, also it s gone; great. Heavyness : JBoss AS 7 is actually comparatively light and fast. if you don t want EE you'll be able to use Tomcat or Jetty that happen to be barely even there. Testing : Arquillian would be the best test tool I ve employed in ANY language, even though it s scarcely become mature enough for being usable. Dependency hell : Just use Maven; it must be standard and mandated portion of JAva. Craig Ringer Jun 11 12 at 1:29
Start Ups want the shiny. Whatever the shiny is: RoR, Groovy, Grails, OOP w/PHP, Foobar, Wibble, Narf, etc.
Enterprise wants stable, reliable and scalable: Java fit that bill when done efficiently.
Current gig: Financial Services. Platform: ColdFusion essentially a Java Tag Library and Java.
These are typical high-volume, high-security sites. No one at these companies ever considered PHP, some considered RoR and saw a lot of issues. The 401k company were built with a sister company running application with competent developers, the app just kept crashing per week. They finally converted it to Java and gained stability.
The only those who look down on Java are the type who have no or little actual exposure to it or happen to be involved with poor implementations and they are now gun shy. They begin to see the shiny and figure if the many cool students are using it, have you thought to me?
The 401k company a sister company running application with competent developers, the app just kept crashing once a week. They finally converted it to Java and gained stability. Lol:, have heard with the opposite case. Den Aug 24 11 at 8:58
Well of course you've. There s more to web applications than writing code, you ought to know the way to tune your servers, write optimal SQL and many others. That company had devs with out real server admins. The company that bought the organization I was with also got that app from the deal. They were a huge Java shop and for that reason had more resources open to guarantee stability. Adrian J. Moreno Aug 24 11 at 18:45
It seems disingenuous if you ask me that you ve written that sentence stated as cause and effect. Convert to Java stability gain? We all know that s not why. Also, sorry about everything ColdFusion experience ; Jordan Aug 25 11 at 7:28
Too be fair, investors tend to need to see the flavor on the year. But I still personally can t think of the worse option for rapid prototype development barring very-high-quality Java devs which will not be easy to locate. Erik Reppen Jun 12 13 at 21:28
An addition towards the FrustratedWithFormsDesigners answer: Since I reckon that your question more targets towards smaller sites, there's an important aspect that you have to consider for lots of people: Hosting is ubiquitous for PHP however it is harder for Java or ASP sites. This however just isn't a defect of people languages.
1 due to this. It s far much easier to host many sites with a server for PHP than it's for Java and added to that it truly is far quicker to find cheap web hosting service solutions for PHP than for Java. Jonas Aug 18 11 at 15:43
Java absolutely is utilized for modern web content management. Particularly when you finally get towards the slighly largermore complexscalable end in the web application spectrum.
If you are considering modern, productive tools and frameworks take a review of:
But I think most truly modern web development about the JVM platform is likely to get done in one in the new JVM languages as an alternative to using Java directly, with Java simply giving the backbone regarding underlying libraries and back-end infrastructure. There can be a lot of website design happening in Groovy Grails, Scala Lift and Play, JRuby JRuby on Rails and Clojure Noir, Ring/Enlivelots of custom frameworks to mention but a number of.
With all of the innovation happening the modern JVM language space, I personally suspect that Java could eventually become the assembler of server-side programming.
Agreed; Java EE 6 is extremely good as soon since you drop JSF2 and utilize something sane and productive. The learning curve remains to be immense though. Craig Ringer Jun 11 12 at 1:22
Well, I recently met which has a Java guy that has been really excited by the brand new Spring Data project, as a result of how little code it will take to get basic CRUD access on your DB going.
I can develop a CRUD app using Rails not merely db access, but views and controllers with a number of commands.
Off the top my head: new project, 1 scaffold command per entity, 1 command to migrate the database, 1 command to begin the server.
It has nothing to do with all the language, its all concerning the tools. And it appears that dynamic languages often have the knowhow and frameworks that remove a great deal of boilerplate code. To make up for that lack of powerful IDEs that generate boilerplate for all of us.
Also I feel that dynamic languages usually make writing such tools and frameworks easier. I can grok the code for say, Padrino or Rails ruby web frameworks considerably more easily than I can grok the code for say Spring Roo. This may very well be due towards the fact that I know Ruby greater than I know Java, though.
Personally I don t like dynamic languages. Static languages cause me to feel more productive when I could see all type errors fast around my IDE and make use of refactoring tools. You should have an appearance on Play Framework it s a Java web framework inspired by Ruby on Rails and allows you to productive with Java. Jonas Aug 18 11 at 15:46
An powerful framework, like rails includes that if something is not good implemented then exercise session t change it out by something different, because that component is simply too tight with all the framework. While for java, if I don t like Hibernate, I can use something else entirely like cayenne or JPA one example is. Coyote21 Feb 2 12 at 13:14
As someone fighting Django, permit me to just say: Coyote21 is utterly right. You can get basic CRUD up on and on in 5 minutes, however the second you commence adding business logic once this record is updated, an increasing must be inserted in this particular table, on the CRUD, you ve got issues. syrion Mar 25 12 at 12:45
Does Google, Amazon, or LinkedIn count as modern?
Java is needed for modern web applications. If you look through the enterprise it could be the most heavily used language for web applications internal.
That said, Java experienced a period were its web design standards tried to get everything to everyone arguably still do. Dont repeat yourself was obviously a response to your xml hell and long build cycles of Java web design. As an effect, Java EJB, Struts, JSF, etc became considered as the thing all with the new paradigms were seeking to overcome.
Java, the word what is verbose. That is often a pro as well as a con an excellent option for maintenance, sucks for dev. There undoubtedly are a number of contemporary language features that contain not yet got into Java that may cut coding time down substantially properties, events, closures, generators, list comprehension, etc. So, it could be frustrating when from the more modern language. That said, they may be difficult to put in to a mature language without becoming the rats nest that C is starting to become.
Many languages employed in modern website design are dynamically typed. This enables tooling that will dynamically reload code as it really is written this can be harder to accomplish inside a static language - jrebel. Since website design lends itself to fast iterations, dynamic reloading is often a huge win. It significantly lessens the development cycle on greenfield projects and causes it to become easier to have the UI and also the UX right experimenting by nature.
Static languages get their place, too. For backend logic that's complex, must run for a long time, must scale without issue, have to be very fast, and need to be completely error free, statically typed languages like Java as well as C are preferred.
Additionally, as developer count/turnover grows and products mature the possibilities of well intentioned folks introducing bugs skyrockets. The rigor and discipline that the well designed Java project interfaces, patterns, and holy water for the people php vampires: enforces removes long term risk. While, this will also be achieved via unit testing, the security net produced from static checking and static analyzers like findbugs and clang delivers a inbuilt level of code coverage that's hard to replicate with handwritten tests. Dont do not understand, there ought to be unit tests and functional tests, but real organizations never achieve 100% coverage. For what they check, static analyzers do.
So, in large projects as defined more by team size than code size, and then there is complex interoperation between independently developed chunks of code, languages like Java will still be preferred. Examples include large/complex web applications like those at financial brokers ameritrade, financial exchanges nasdaq, nyse, maybe london after failure, online banking the vast majority of them, email google, auction ebay, etc.
From a performance and scale perspective, nothing tops the Java platform for its mixture of scalability as well as for web applications depending on the way you count facebooks application partitioning. Twitter, one example is, were forced to rewrite large portions of the company's Ruby infrastructure in Scala around the Java VM so that you can put the fail whale out of the home to sea. Ive read about other large examples, nonetheless they elude me right this moment.
Its also looking at security. While Java browser plugins have suffered their great number of security vulnerabilities, the java platform itself is one on the more secure platforms created. Java web applications have a very reputation of being very secure. Its coding practices, libraries, and architecture have long discouraged mistakes which make attacks like sql injection or buffer overflows possible. While other web platformsrails use a good security reputation, none surpass Java.
Bottom line, most web applications are pretty straight forward technically. For simple, Java is frequently overkill just like within the old days once we wrote them in C:. If, though, the webapp is complex backend or elsewhere or is envisioned having 100 developers, Java is not easy to beat.
On your own note, I use Grails a lot because doing so gives me the best of all possible worlds the same might be said of JRuby which I hear has become more plus more popular inside Ruby world.
BTW - I find the increase of PHP to get truly baffling. PHP as being a language may be the rough equal to perl in readability and VB inside the quality on the results. It encourages horrible practices, is difficult to maintain, other libraries rarely are expected, and it also has a syntax that may drive Larry Wall wall. The only explanation I can conjure is the fact it leads to incremental learning like VB. In other words, you are able to accomplish something useful knowing not much about programming/administration and you are able to extend knowing about it a small chunk at the time. There is usually a lot for being said with the from an adoption perspective. However, for everyone that has every were forced to support or replace one on the billions of VB apps that had been written by programmers from the corporate/mfg world, you happen to be probably shaking your brain and planning your retirement.:
Java is positioned inside recent years being enterprise. Which is for the other side from the spectrum with the items a startup needs. In web database integration you need 4 things - painless database access, great string manipulation, syntax sugar and rapid iterative process to generate the numerous little changes your app requires.
Performance, scalability and stability can be a bit lower about the priority list.
Also Java can be quite unfun language to code in. It got the ultra-modern ability make use of string in the switch statement just yesterday. And javascript can be quite hackerish language so after growing your frontend you are feeling very constraint once you return to java.
So I suppose these include the reasons webstartups avoid java.
painless db access? Spring JDBC or Hibernate work great. Great string manipulation? Don t think string manipulation is much a lot more than 5% in every project. Syntax sugar? What would you even mean by that. Rapid iterative process? Java has it Tomcat inside Eclipse is painless. Java unfun? Only thing missing is concise anonymous classes/lambdas/etc. The fun features in other languages often obfuscate and earn things less clear. Strings in yeah, I gotta admit that sucks however, most with the time, you have to be using enums. alex Dec 14 11 at 22:46
Java practically cannot be employed for DSL, as an example, Play s config and routes file aren t Java file, it s within a foreign syntax which does lower than say django s and ; no list comprehensions; crucial datatypes maps, lists usually are not imported automatically; idiotic one-class-per-file really gets within the way; and Java APIs tend to get unnecessarily verbose. Also, you may t use enums if you re switching between strings you received from GET/POST parameter. Lie Ryan Jun 11 12 at 2:19
alex Interesting. I tend to utilize generics everywhere in C - although taking a look at it through the outside, that s probably due towards the increased functionality of lamdas - So I might have an
IQueryable T WhereExpression Func T, Boolean Expression
I wonder when they ll be a little more popular in Java if this gets lambdas? It s probably a comfortable zone thing but Java just feels verbose - and extremely much like I ve been handed enough bits to make 50 different kinds of car without guarantee any 2 parts will fit together. Basic Mar 7 13 at 22:31
I can t feel that two people have argued that Tomat inside Eclipse is painless and makes Java development efficient. I find so it makes each development cycle much faster, but requires daily maintenance, including repeatedly refreshing, rebuilding, cleaning tomcat, redeploying, restarting and often restart Eclipse and repeating the quicker steps. If my car needed a whole lot of maintenance, I d never get moving. Brandon Mar 20 13 at 12:40
Brandon I will second that. I have never, not once struggled using a config issue in Node or Python/Django. I lose patience with RoR. Our Ant/Mvn/Spring/Hibernate/eclipse dependency-ridden Java codebase is usually a waking nightmare before you get for the code. Erik Reppen Jun 12 13 at 19:37
I currently work within a company that's quite some I hate Java Developers. It utilized to stun me too. I certainly hate all of the hoards of technologies which can be available with Java. This makes taking decisions too difficult. Its like When you ought to much choice you've no choice. You must spend time with 100s of frameworks to essentially come up using the framework made just for you. The standard Servelt architecture is waayy to complicated for some applications. This isn't case with Ruby, Django and stuff. They are are more of the single framework as an alternative to language.
The Syntax is just too long. Just to print something we have to create You cant really employ a simple VI like editor and create a working part of code within a few hours.
Weak test frameworks. Even though the testing frameworks are certainly similar in Java and Ruby, Ruby needs a step forward start by making thing readily available for testing. This is especially true if you're using DB extensively with your application. Even many from the Web frameworks dont contemplate testing.
Templates are a problem. Makes the not hard language to a Noodle Soup.
Not Cool. Most Java applications are developed in huge companies, which is related to Bureaucracy that doesn't go so well with developers. People dont think Google after they think Java. Google Python. It has also to accomplish a lot without any books released indicating do X in Y days.
Dont wish to compile. To most developers compilation is often a decade old phenomenon. It made sense in 80s with C but mordern computers are able to do a much more. They dont write code in compiled languages. Java is one from the very few languages that's compiled and employed to write web applications.
Too many Oops Concepts. Even though developers have quietly adopted the Oops domain. They dont as it in full. They dont like once you write a questionnaire with 10 classes with each class doing one thing. Makes you open 100s of files and imagine interaction across 100s of classes, sometimes with frameworks. Makes the complete programming activity a chore. This may very well be true with many languages but I have noticed that Java Developers pay lots of attention to just what a class does. Its the Java Developers who often come up having a code with 100s of classes. This is a great one from many perspectives but non java developers hate it.
So overall Java imposes a steep curve on the beginning on the project, which means an excessive amount of money to get committed. Add to this an enormous community attached with java, each thinking in ways and no-one to really spear head the complete community. They also dont see talks and conferences conducted because of the community showing off every one of the cool something totally new. No new cool books. Java it appears like will go down given it was utilized to solve a lot of different problems a couple of years back.
I love OOP. I also know OOP and that is why I would disagree how the vast majority of Java devs are doing a lot of of it. You can write a class however, if your code remains to be a tangled spaghetti mess, your entire really did was discover a way beans to publish crap procedural code with pointless structures wrapped around what might at the same time be simple functions or structs at best. Erik Reppen Dec 7 12 at 1:13
The frameworks for doing Java website design have a considerable amount of learning curve, theyre often overkill for the purpose you need, and much from the indirection required to create things work is use.
I utilized to work for just a company that did Spring/Java development, and I found the framework cumbersome at best. I dont have lots of pleasant items to say about Springs framework, except I a friend who accustomed to do Struts development and hubby thought Struts was even worse. The web-framework is not like doing desktop applications or mobile eg: android applications, and has lots of very abstract ideas that take some time to actually grasp though, certainly, that offers you plenty of power and capability when you a pro and doing something really complex such as an enterprise grade app. I love programming java for mobile or desktop devices, but java for web-apps? Not a great deal.
I havent done any programming personally in Ruby/Rails, but my buddy who familiar with do Struts is doing Ruby web programming and testifies that things that happen to be difficult to try and do in Java web programming have to have a lot less code and complexity to accomplish in Ruby. Theres certainly a learning curve on the different syntax and language rules, nevertheless for prototyping apps, there's an advantages with regard to how much code is necessary to achieve a desired result. As others have mentioned, scalability is a concern to consider at the same time, and one from the reasons mature apps aren't seen as frequently in many hip languages.
1 for framework. Not only were the first frameworks attempts Ps Poor JSP, STRUTS, now we have about thirty to select from not one ones works too as RoR. James Anderson Aug 19 11 at 4:19
It depends upon costs and trends. The Web 2.0 Startup is made by an under 30 visionary that has more talent than money Im generalizing naturally but this can be what youll see normally. He is going to work with a language they are familiar with because hes doing the programming in conjunction with maybe several friends. Hes almost certainly a self-taught programmer.
Java may be targeted for an enterprise environment by Java, I mean the words, the framework, as well as the standards. There are a few expensive tools how the IBMs, Oracles, and BEAs from the world wish to sell enterprises.
The steps to get proficient with Java are complex and/or expensive. I know the landscape is beginning to change there but would it be too little in its final stages?
After the startup gains traction comes the expansion. Recruiting talented developers is tough. Most be a programmer in about six weeks programs teach Java and also the market is saturated with six week programmers perhaps surprisingly Ive seen developers with resumes saying many years experience that still show the knowledge of an six week programmer. Using a non-mainstream non-enterprisey environment could be a natural filter for six week programmers. It takes dedication and investment to master a Ruby or Scala outside of the job requirement. This could be the biggest indicator for me of potential for just a candidate.
Knowledge includes experience but a dedicatedpassionate programmer will gain knowledge more rapidly an average of than someone without that dedicationpassion. Just like a kid who loves playing guitar can be better more rapidly than a kid taking lessons because his dad made him.
I don t agree using the paragraph that claims: He s probably a self-taught programmer. This is untrue nowadays, nowdays many people from 30 s that program are competent programmers and also have at least a college degree. Coyote21 Feb 2 12 at 13:17
I m painting the prototypical web startup. I didn t say anything about them being competent. You may be self-taught and competent at precisely the same time. I m unclear what you re disagreeing with. Michael Brown Feb 2 12 at 13:25
This was for being my answer. Java is fairly much the one current web technology that isn t designed making sure that any competent developer can just pick it up and employ it. The second portion of your answer is actually comparatively much what Paul Graham wrote in The Python Pardox user16764 Jun 10 12 at 13:00
Java is simply too complicated. I do lots of PHP work and it is just easier and faster for many situations. The chance to just SSH in a server open a php file make changes save and become done is extremely good. The few Java apps Ive done have always required a restart to the simplest change. not implying its always the truth just what Ive delt with. Additionally PHP hosting is affordable and readily accessible.
I also believe what you've at least with PHP is really a lot of developers they like me commenced 14/15 in years past with static HTML. As things progressed we started adding PHP in our sites because it had been easy, simple, and affordable. Over the years the word what has grown and contains expanded its abilities way beyond its humble beginnings now tries hard to become what I think is usually a lot of things its really not.
On the other hand most PHP devs I know see Java since this giant overly complex 800lb gorilla, similar to getting out the 18 wheeler semi truck to operate a vehicle down for the grocery store and obtain a loaf of bread.
Ive attemptedto learn Java, my first impressions where that that it was very long winded and cts inducing. Additionally beginning it left me using a lot of questions that probably seem easy with a Java veteran. OpenJDK, or Sun? Tomcat, or Glassfish, or? Plus it seems every intro to Java book starts get you started writing code with the command line. I think most people today find that your snooze fest.
nonetheless it s just causes it to become so hard to create good much easier to setup, better to start, less boring shouldn t function as criteria you utilize to choose a language. Good programming requires discipline, patience and yes it s a negative sign should you don t have those while alex Dec 14 11 at 22:52
My team and I are still developing a greenfield web application in Java 6 Stripes. Within the last year I also handled another greenfield web application using Java 6 Stapler a somewhat unknown web framework produced by Kohsuke Kawaguchi of Hudson/Jenkins fame.
Java is absolutely used by modern website design. Certainly it does not have the sexy selling point of Ruby and other dynamic languages, but Im far away from convinced that dynamic languages certainly are a good thing when a project begins to scale.
Modern Java app servers are incredibly competitive with with regards to performance, and both of them are orders of magnitude faster than any dynamic language VM I know of.
Dont get me Im not to imply Java is often the best choice not remotely! - - but neither will it be always an improper or outdated choice.
I often disagree while using faster. In theory they ought to be but you can find some massive php sites available and nearly each of the anecdotes about performance problems correspond with MySQql or another underlying databases. On the other hand just about every J2EE app I have seriously contact with needed extensive tuning before performance was even acceptable. James Anderson Aug 19 11 at 4:23
James: will you have anything besides vague anecdotes to back that up? All the top-10 websites out you can find either running on managed platforms Amazon on Java, Twitter on Scala IIRC, Google over a custom backend of Java and C or else they've got a highly customized infrastructure Facebook and Wikipedia use PHP, nevertheless they both have huge amounts of custom native code for speed. Java regularly outperforms dynamic languages in benchmarks. I m no Java zealot, but performance is just not Java s problem. Daniel Pryden Aug 19 11 at 5:49
Basic: What is your point? There are lots of broken libraries and frameworks for virtually any language. Yes, successful . of crufty and away from date documentation - - but that s hardly unusual either. Conversely, you can find some fantastic libraries, frameworks, and tools for Java. Are you seriously looking to suggest that there has to be one end-to-end framework for any application ever? Daniel Pryden Mar 6 13 at 22:00
Basic: Backwards from what? In the year along with a half since I first wrote this answer, I ve managed to move on and am currently working at Google, and I can assure you that Java is employed very heavily for web database integration at Google. Of course, Google s needs are incredibly different through the needs of a great many other companies, but Java is often a different beast entirely if you use the proper libraries and frameworks - - just take a look at some from the things Google has open-sourced Guava, Guice, GWT, Protocol Buffers, etc. Daniel Pryden Mar 6 13 at 22:11
Java ecosystem is incredibly complex, large and quite confusing to beginners
There are lots of historically bad frameworks with negative reputations related to java, you should know which frameworks to prevent wasting time on
Java IDE like Eclipse while very efficient with amazing features are challenging to configure for effective website design without experience.
A new developer entering into professional development will see Java an Order of Magnitude harder than rails, python, or php to obtain going with so each with what exactly is easy to understand.
Having said each of the above, I made the decision to work with Java for my Startup as a properly configured Java Development environment is quite productive to be employed in. By properly configured I mean.
Properly configured eclipse workspace, using a all frameworks wrangled up and configured
Good collection of libraries Spring, Spring MVC, Spring Social, Spring Security, JPA, Hibernate, etc
Let s be clear though. The language Java, is not difficult to learn. It s every one of the layers of crap built around dealing with Java to generate up due to the shortcomings verbosity, protecting you yourself along with your teammates because they are inflexible as all getout, the absurd amount of libraries relied upon, that s a PITA to know. Erik Reppen Dec 7 12 at 1:24
ErikReppen Very true. I am having to work with a Java project but use a background The language and syntax is straightforward as anything I ve discover to understand. It s the verbosity that s really driving me nuts. What I utilized to in 1 line now takes 5-10 and frequently an XML config file edit. Not to say that without spending several reading, picking the proper framework for any job is really a nightmare - and this s prior to find out that the scenario may be known as an edge case, isn t supported in case you don t as it, rewrite it. I want to invest my time solving the top problems Basic Mar 6 13 at 17:41
About 5 yrs back, me along with a colleague ingested a programming part of some internal project. A simple enough task which required command parsing.
I came up together with the entire thing in about 80 lines of java code and my colleague took each week, about 20 java classes and considerably more lines of java code to do the identical. Needless to say, his code was picked.
This helped me wonder. Everywhere, complexity was appreciated. I was getting work done in one from the biggest software products company. Java was the tool usually chosen and design patterns were THE strategy to code.
Now, could it be the mindset or perhaps arrogance that rejects simplicity. Well, I always thought wise practice should prevail. Whether it can be an enterprise or even a simple web application, the fundamental use cases will be the same. It ought to be correct and verifiable.
I dont use java anymore for a lot of reasons. But one on the factors - complexity, will be the prevailing mindset in the ton of java devs if this comes to developing software.
As for scaling dynamic languages, JVM may be the result of decades of research. There can be a lot in the same happening for Ruby etc.
Scala is language which I find is exceedingly clever and practical. Play! with Scala is definitely as excellent for web/enterprise database development as any on the market.
As for Ruby and Rails being the shiny new thing for start-ups, it's extremely hard to hire a solid Rails developer. It is actually an impediment to the start-up whereas the plethora of java devs should make more business sense.
In a newly released interview with, Joseph Snarr, a technical lead for google plus explained what sort of application uses Java Servlets for your back end and JavaScript around the front end.
So to reply to your question Java is still used in very modern web design. Just not for that start-ups who have been getting much press recently.
I think the reason that the lot with the start-ups are employing other technologies is simply because theyre sexier and have a very more publicized a source push in it.
Start-ups use other technologies simply because want to obtain it done now. Not later. And they went it to have done now by like 3 people, not 30. Erik Reppen Dec 7 12 at 1:17
Since you mentioned web design and Java, many people usually forget that from the outset using Java Applets within a web browser failed to preform well, in addition to that, however the sandbox for that applets are not fully developed and then there were security difficulties with Java Applets the ability to run inside the browser and access local machine data aka client side security issue. Sure Java was solid inside backend and stand-alone applications but I think associating Java the words with Java applets run for the browser together kinda screwed up some perceptions about Java as a website design component. I dont think they ever recovered from that.
Absolutely not! Actually Java can be a dominant language from the server side world. Applets extinguished maybe decade ago. Chiron Aug 18 11 at 16:06
Flash did what Applets tried to get. Quick start up, fast download, low memory footprint. user1249 Aug 18 11 at 17:56
I know a great deal of people that will t even distinguish between Java and Javascript. Even though they can be completely unrelated. This is another thing which gives Java a poor name. Kibbee Aug 19 11 at 13:37
The question really should be Why isnt Java employed by startups or small projects?. Java certainly useful for modern Web apps. At Google, Java is used around the backend for many people services, and closure compiled JS or GWT is utilized for the frontend. The issue is of speed vs scale. Startups ought to get to minimum viable product. They are usually small teams of 1-3 engineers, and value iteration speed over performance or maintainability. Running up against scalability issues or team code code maintenance issues is often a problem youd prefer to have, that may be, with the time you reach that stage, its indicative your initial implementation helped you on the initial hump of obtaining customers or investment. You are able to afford to rewrite the app at this point.
A company like Google have enough money the luxury to build things for scale in advance, while they may be wasting their time implementing scaling for something might get no users, simply because can absorb the loss.
At least, thats my, that lots of many cool, hip, modern companies build small apps with small teams where iteration speed and simplicity are definitely the greatest requirements.
Traditional web applications on Java, though well structured, are extremely far from rapidly developed. Though Ive only ever written one full web application Java/Tomcat/Struts, it turned out extremely picky, took over expected to debug, and was generally painful when implementing the company logic layer. In Javas potential defense, it turned out the only web application I had designed in Java though Im employed to programming systems-level applications in Java, and I believe I could write another web application slightly faster this time around.
Having declared, Ive also written applications in PHP and C, and in addition they just be more effective, and so are far more forgiving than Java. More than that, Ruby on Rails was written especially for rapid database development, which, like Robbie said, allow easy CRUD having access to databases. The problem is most internet websites you will be developing on your individual do not want the level of customization that Java offers and you to perform. Additionally, every DB connection object have to be written by hand and isnt that all to easy to templateize. There can be a better framework around, especially the one which takes attributes of Java 7s new dynamic language support features, but I havent done the investigation yet.
Jonas, consider writing good quality blog postings explaining this concisely. user1249 Aug 18 11 at 17:01
Simple answer: learning curve to base productivity.
Framework based systems like RoR usually put the magic inside language/syntax. It is quite easy to ramp up on your own basic RoR syntax and find an app up on and on.
Java was obviously a language first, and tools and frameworks appeared later. So you need to learn Java first, and after that you must learn Spring, or Grails, or maybe your super IDE, or whatever. Favorite illustration of Ruby, it doesnt require setters and getters. Fact is, Java IDEs got rid from the manual coding it truly is still as part of your source. The benefit of this method, is the fact that below the framework, there can be a language that consistent that most Java developers can assist.
This benefit is dubious to small startups where time is in the essence. Usually, they can be doing hardly any that they couldnt do with an out from the box framework. So they are able to grab their RAD system of choice and also have an app live the very next day.
But if you check out Facebook and Twitter, because they expanded, they found items that couldnt be handled by away from box frameworks and so they to use lower level technologies.
This holy war that framework developers have that they is capable of doing anything faster is bogus, they will do many what they need simpler sufficient reason for less of your learning curve. And for plenty of things, that's good enough. Use precisely what is right to the problem.
Depends the method that you define modern web content management. If you might be talking startup, fast turnaround websites, you will have to consider languages and frameworks designed for the purpose. If you might be looking for stable, scalable, enterprise level website design, keep in mind languages and frameworks that support those ideals. In my book, those are two completely different goals. RoR, Groovy, etc., are good for your first and Java might be more appropriate, normally, to the latter.
Google App Engine supports Java, to ensure that you can write all of your web app in Java, using Eclipse because the IDE and deployment interface, using a reasonably documented Google API - - so I wouldnt say it isnt used or isnt usable.
In the startup I help we chose make use of both Java and JRuby to implement our API simply because complement the other person.
For infrastructure, process distribution and communications we leverage Javas robustness, whereas with the actual implementation from the API endpoints we chose JRuby since the many calls involve JSON and it also makes much more sense to control a loosely-typed representation JSON utilizing a loosely-typed language Ruby.
If we see among our JRuby classes has become a bottleneck, we re-implement it directly in Java basically a line-by-line translation. This can happen very often with classes which must do many computation, and with this context JRuby behaves just like a prototyping language.
We implemented our personal dynamic class loader which means you can change Java classes around the fly without restarting the server, and weve been very happy with all the choice. So the you must compile and restart everytime argument isn't going to hold much fat.
The key's to avoid each of the Java EE stuff - its huge and cumbersome and anti-agile.
I have the feeling that Java has been used in a very lot of web design. But its usually for the more business-oriented-no-mainly-tech-big-company style of developments, which typically are less open then new startups that contain to get some good traction and promote their unique work, too as more considering technology. So, even if it's used in the lot corporate internet sites, youll probably can't say for sure, when they wont worry to tell publicly relating to technology stack.
That said, commenting all of the original
Is it a weakness in the language? Compared with other languages like Python or Ruby, Java is verbose and will need more code to try and do similar stuff. But its besides the capabilities in the language, also the city surrounding it and also the kind of developers which uses those tools. So, most with the modules and tools on Python, Ruby, PHP, etc are open source and are quicker to find compared to Java world, because this the first is more centered on giving and charging services. For example, the Ruby community is absolutely really oriented to website design, so every developer that may be able make use of Ruby will know around the problems and available tools for the web project. That isn't necessarily true for Java developers, that could have already been working on other type of systems, like reporting systems. Of course, worthwhile developer will get caught up, even so the perception is how the average Java developer is less focused on learning technologies and new languages.
Is it an unfair stereotype of Java because its been around way too long its been unfairly regarding its older technologies, and doesnt receive recognition because of its modern capabilities? Java just isn't really the previous, and, being fair, it's got greatly improved. It was the cool, relevant platform about a decade ago. But since then, there are already new platforms with newer problems at heart, like Ruby on Rails. The core sector of Java is mainly the corporate world, with some other problems, and so the people looking for new projects outside which includes been trying to find different tools. Also, the principle advantage of Java design, being multiplatform, is just not as relevant today since it was before.
Is the negative stereotype of Java developers too strong? Java is simply no longer cool That has a variety of truth inside. Java still would be the language to learn to obtain a job. So, in case you dont care, but just wish to learn something to generate money, youll end learning somewhat Java and never caring anymore to improve. Again, can be a lot about perception and visibility. There are tons of great Java developers that happen to be coding without sharing their knowledge, while you will discover lots of PHP developers, maybe not nearly as good, which might be writing blogs and collaborating into open source. That leads to think which the PHP developers can beat Java ones, since you have certain feedback about them.
Are applications designed in other languages really faster to create, quicker to maintain, and will they perform better? Id say they are faster to develop. The principles of languages like PHP, Python or Ruby means they quite great for generate software that may change constantly. Dynamic typing makes better to change an interface. In Java developing a well defined interface is significant, which ends up in more stable and tough to change interfaces. This is incredibly important inside a new startup, which main problem is to acquire a product prior to deciding to run outside of money. About performance, it truly is very very all to easy to misunderstood the requirements and try and use magic tricks to realize the required performance, like Java is faster than Ruby. Period or MongoDB is web scale. Reality is much more difficult than than.
Is Java only utilised by big companies whorrrre too slow to adapt to a brand new language? Definitively, having already an active team of Java developers within the company, makes quicker to keep using a similar language for first time projects. This is perceived as being the safe bet, specially if your core on the company isn't technology. But, anyway, Java will not be ONLY applied to big companies, you will find still plenty of startups which utilizes Java for cool stuff For example, FightMyMonster or Swrve uses Java extensively, but Id say which the general tendency inside the startup scene is to make use of other languages. That is a way of having people, as the majority of people will become more exciting to work together with Ruby, Python or PHP, considered more friendly and fun languages than to assist Java.
This does work, but not due to Java and its particular ecosystem. Its due to people that, when you use Java tend to generate big messes and abominations.
There are enough frameworks spring-mvc, grails, play, etc. that allow you to develop things fast. The fact that people overengineer their systems is usually a problem that comes while using increased knowledge people get once they work using the Java ecosystem - you recognize many more thing, and you could have them available you'll find tools for everything, and everything appears to be a nail.
If you're hacky, you'll be able to do pretty much exactly the same with Java similar to other languages, and heres a work indicating that:
To add simply a bit to whats also been said, I think many it has related to how fast it is possible to go from nothing literally with a functional web application.
If all you might have today can be an idea, going where you are now to writing internet application is nearly as easy as falling down, whether you decide on a hosting provider or your individual infrastructure to be an EC2 image. Choosing Java, during my experience, is normally more work, and quite often costs more too.
Additionally, should you go with Linux and PHP/Python/Ruby, the tools plus the platform are complimentary and created to support the other. With Java, often it seems both the worlds OS and Java sometimes dont seem to get working in harmony with 1 another.
Many might associate Java and web application development while using horrors of J2EE which, bundled with monstrous J2EE application servers from big blue and red corporations, equaled weeks at work before the standard Hello World was online.
True, recent JEE specifications and implementations are lighter weight, but Id still think thrice before suggesting anything like this to get a short cycle rapid development project.
This remains to be the standards-based strategy for doing web database development in Java. The alternatives, many of which might be mentioned in other answers, convey an even more mixed and confusing picture with a lot of choices to generate.
Other languages portray an individual turnkey solution rather then this multitude. This makes this choice seem more fit-for-purpose once you have more significant fish to fry.
I think it's used alot in excess of youd think - - the use is definitely below the waterline. There a wide range of, many ruby on rails wrappers around thick, fancy java services. Especially after you start managing anything approaching big
Spring MVC Spring Data JPA or Mongo Thymeleaf for templating coffee-maven-plugin for Coffee to JS transpiling and youre ready to go.
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