A single application in which you can edit, build, run, debug, and deploy your soon-to-be-written Java application. Enter BlueJ and Greenfoot, two IDEs very specifically designed for beginners.

However, the limited scope of JDeveloper can make the tool a good choice for Java programmers who want a simple IDE. JDeveloper isn't open source, but it is free. BlueJ tops the list of simple Java ...