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Ask HN: What is the best Java IDE?

• mindcrime 16y ago
  I prefer Eclipse, but I haven't spent much time using Netbeans or IntelliJ, so I can't really say that Eclipse is "best." I can just say that it works very well for me, and has a rich ecosystem of plugins and additional tools that I find handy. On the downside, Eclipse is awfully memory hungry in my experience. Not sure how it compares to Netbeans or IntelliJ though.
  • ido 16y ago
    On the downside, Eclipse is awfully memory hungry in my experience. I've heard that before, but I can't really understand why - I haven't had memory issues with eclipse in years. I thought it might be because I've had at least 4gb of RAM in every computer I've used for several years now, but when I checked its memory usage eclipse was using around 250mb. I've asked a friend who uses a netbook with 1gb of ram and he uses eclipse without issue on a regular basis as well, so I'm really not sure where this myth comes from. Maybe people are just loading up their eclipses with a ton of plugins?
    • skybrian 16y ago
      Memory usage depends on how much source code you have. A startup will never have enough source code to worry about it, unless you do something silly like compiling all your third-party libraries from source. It wasn't until I joined Google that I started seeing performance issues.
• drfugly 16y ago
  Netbeans with the jVi plugin for my vim bindings is where it's at for me.
• jonpaul 16y ago
  I really like Eclipse, although lately I've read a lot of vitriol towards it. It works for me, but then again I only use Java for GWT and Google's plugin is only for Eclipse. But its refactoring capabilities are satisfactory for me. I use Netbeans for Rails, but I've never really gotten into using it for Java. Although, I hear their Swing WYSIWYG editor is nice. I've never used IDEA, but I've never read one negative thing about it. In fact, I've also get the impression that a lot of developers swear by it. I just don't want to pay for it.
  • skybrian 16y ago
    There is a free, open source version of IDEA now (without all the plugins): http://www.jetbrains.com/idea/free_java_ide.html http://www.jetbrains.com/idea/free_java_ide.html
• fusiongyro 16y ago
  I strongly prefer NetBeans to Eclipse. I haven't used IntelliJ, but would like to. The big feature of NetBeans is simply that it's fully-integrated. Out of the box, it works with Maven, Subversion, Mercurial, etc. Comes with Tomcat and HSQL so you can deploy your web apps from within the IDE. It requires far less setup and just generally "does the right thing" without really requiring me to make a bunch of decisions and install a ton of plugins. With Eclipse I never managed to make any of that stuff work; there are many different plugins you'll find for any given task by searching, and many of them have plugin dependencies or are outdated or just suck. My time is too valuable to spend it making Eclipse into the one IDE to rule them all. I have not been disappointed by NetBeans, and three of my coworkers have switched to it since I've been there, I suspect because they got tired of configuring Eclipse. Just my two cents. I'm sure a lot of what I gripe about is "easy" to do, and I certainly would admit that more is possible with Eclipse, but the tradeoff just doesn't seem worth it to me.
  • kls 16y ago
    I strongly prefer NetBeans to Eclipse. I haven't used IntelliJ, but would like to. I have used IntelliJ and I far prefer Netbeans from 6.7 on. I suspect a lot of people used an older version of Netbeans but after 6.7 it is probably the most well integrated IDE available for Java as well as an assortment of other languages. Someone said the Javascript support was better in IntelliJ product and I just don't see that, Netbeans has better support for Javascript than ever Aptana Studio as well it supports the syntax of all of the major JS Toolkits from Dojo to jQuery. Netbeans rivals Visual Studio when it comes to an well integrated environment that provides UI's for SQL / DB managment, HTML, CSS, XML, JSON, Server managment and is the first IDE that I did not feel like I was roughing it in since coming back to Java from doing some .NET work for a couple of years.
• snprbob86 16y ago
  I am currently a serious Vim user, but I was once an IntelliJ addict. I highly recommend it. It is orders of magnitudes better than Eclipse and NetBeans. If you do consider plunking down the cash for a license, force yourself to use the refactoring tools as much as possible. If you are primarily editing a single, strongly-typed language, then you can't go wrong with anything from JetBrains. IntelliJ IDEA, Resharper, etc. All brilliant. On a bit of a tangent: If you are editing many different types of text (In my case: HTML/Templates, Sass/CSS, Javascript, Python, config files, a little bit of Java/Scala, etc.) then go completely IDE-free and learn Vim or Emacs. For me, the IDE vs Text Editor debate comes down to the question "Am I primarily editing one type of code in a single strongly typed language, or am I primarily edited text?"
  • jomohke 16y ago
    I would phrase that question as "Am I editing one file, or a project of files?". As a Vim user, who previously only used IDEs for java projects, I now use IntelliJ for HTML/CSS/Javascript projects too. If you learn the refactoring and completion shortcuts, I believe it beats VIM at most multi-file projects. If you install the Ruby plugin (also built by JetBrains, for their Ruby IDE) you get support for Sass - and they've just announced support for Less and Sass3 in the next version, including command completion and jump-to-declaration. http://blogs.jetbrains.com/ruby/2010/07/whats-mining-leaner-css/ http://blogs.jetbrains.com/ruby/2010/07/whats-mining-leaner-... The Scala plugin doesn't seem too bad either, but I haven't used it extensively. It already has some simple refactoring features. They're also working on a Python IDE, which is in beta, so the Python plugin will get fairly good too.
• jomohke 16y ago
  We've used Netbeans and Eclipse for previous projects, but moved to IntelliJ last year. The language integration is much richer - and it has a more solid foundation for working with multiple languages. For example, find usages and refactor-rename will work across different languages and templates. When I find usages for a field, for instance, it shows me where it is used in hibernate queries, EL expressions on pages, etc. Languages can be arbitrarily nested in each other, a lot more so than other IDEs I've used - for instance, I can still use command completion and refactoring in nested SQL, HTML, CSS or even Javascript (eg. GWT's JSNI methods) when it is inside java strings, or XML documents, or wherever else. The JavaScript support far exceeds either Eclipse or Netbeans. IntelliJ has fairly decent refactoring and completion for Javascript, which the other IDEs (at least as of last year) barely supported. It has full completion, find usages, and jump-to-usage within JPA/Hibernate queries, which all ties straight back to the original entity classes. The refactoring tools are a lot richer, and a lot faster than Eclipse or netbeans offered. On a largish project the refactoring commands still feel near-instant in IntelliJ -- it may not sound like such a big deal, but after becoming accustomed to it, I use the refactoring tools constantly while writing code. I didn't do it nearly as much with the other IDEs. The refactoring commands are all extremely solid -- for instance, the extract method refactoring will detect similar code snippets and ask you if you want to replace them with the method call. I never had Eclipse or Netbeans ask me that (Have they changed in the newer versions?) I've also found the support for Git far exceeds the other IDEs. While the price seems expensive compared to the free competition, most programmers use their IDE 8 hours per day -- given programmer wages, it only takes a tiny improvement in productivity to pay for itself.
• gizmomagico 16y ago
  Notice a common theme here? Everyone who's worked with IDEA says it's the best, and I agree. A few years ago, IDEA was even more the-best than now, because the gap with Eclipse was wider. Nowadays Eclipse probably has most of the functionality, but there's still the difference that usually exists between open-source and commercial software. The commercial software tends to be better to use.
• ashitvora 16y ago
  VIM
  • ashconnor 16y ago
    ...is not an IDE.
• mark_l_watson 16y ago
  I prefer IntelliJ IDEA but in the past I have used Eclipse and Netbeans for long periods of time. I find IntelliJ's support for Scala and Clojure to also be good. I built the open source version from source, and kicked its tires also: worked with the Clojure and Scala plugins but does not support much J2EE stuff - you might want to give that a try.
• mondodello 16y ago
  IntelliJ IDEA rocks! I have used all three IDEs being discussed here and I would vouch for IDEA any day. As already mentioned, besides other things, IDEA's refactoring is super solid. The ease with which one can perform such functions using IDEA actually supports their tagline - "... develop with pleasure!" It's SVN integration is also good.
• ihanif 16y ago
  If you can live with a bit slow but loads of plugins, stick to Eclipse. Bonus point is, you can use the same IDE for other languages (if you switch to other languages), withou wasting more time to bypass the learning curve.
• wsppan 16y ago
  I prefer Eclipse but if I am forced to use maven as my build environment then it is IDEA.
• ambrice 16y ago
  I use vim with the brilliant eclim plugin to write java code on my netbook. http://eclim.org http://eclim.org Lets you run eclipse headless and communicate to it through vim to get the fancy IDE stuff like code completion, automatic imports, etc. Best of both worlds, especially when coding on a netbook and not having the screen real-estate to run an IDE.
• quicksilver03 16y ago
  I have done a comparison of Java IDEs, but it was more than 3 years ago and a lot of things have changed since then. Today I don't bother with JDeveloper anymore, I use NetBeans only if I want to hack on the JDK sources, Eclipse only when imposed by the client, and my choice is IntelliJ IDEA. If you're interested, the comparison is at http://www.datafaber.com/post/view/id/521 http://www.datafaber.com/post/view/id/521 .
• Random_Person 16y ago
  I need to keep track of this thread. I have not heard of some of these before. I'm currently learning with Notepad so I can force the syntax on myself. Is this a bad idea for a newb? I have Notepad++ but I haven't fired it up for Java yet, I just like it because I'm used to Geany on my linux machines and it feels similar.
  • brown9-2 16y ago
    An IDE can help you learn syntax as well, with the added benefit that your code is compiled incrementally every time you save the file (at least with Eclipse), meaning you don't need to drop back down to javac each time you want to compile, and then compare the results in a command window to what is in your Notepad session. So really, would you prefer to get red squiggly lines to show you your errors as you type, or would you rather try to get it perfect first before having to run a command-line program for compilation?
    • Random_Person 16y ago
      That's some cool stuff. I had no idea that there were IDE's that did incremental compiling. On the other hand, spell check made my spelling take a dive, so I had to consciously decide to stop using the right-click and replace-- hmm.
  • omnipath 16y ago
    If you are learning java, I would suggest Dr. Java. It's like the elementary school version of an IDE. It does syntax highlighting, open and close brackets, and the ability to compile and run the app from it itself. And that's about it. It's really useful to actually learning Java the language, and keeps you away from Java the environment, at least for a little while…
• neverov 16y ago
  BTW, Idea has nice VIM plugin: http://plugins.jetbrains.net/plugin/?id=164 http://plugins.jetbrains.net/plugin/?id=164