DrJava is an integrated Java development environment that supports interactive evaluation of expressions. It is available for free, and it is available under an open source license (GPL). DrJava is under active development by the JavaPLT group at Rice University.
Operating System Windows Windows 2000 Windows XP Windows 98 Windows NT Windows 95
System Requirements<li>Windows 95/98/ME/NT/2000/XP </li><li>Java 2 v1.3 or higher</li>