a practical calculating tool and programming language designed to help us all to better understand the world around us, to help us get calculations right without getting bogged down in the mechanics, and to make a tool that's really useful in the real wor
a portable, optimizing, ahead-of-time compiler for the Java Programming Language. It can compile Java source code to Java bytecode (class files) or directly to native machine code, and Java bytecode to native machine code.
a free user interface builder for GTK+ and GNOME interfaces designed are saved as XML, and by using the libglade library these can be loaded by applications dynamically as needed. (Glade can also generate C code)
will check if your computer has the latest version of Java Runtime Environment (JRE) and allows you to remove all possible older versions, cleaning also the regestry.
a pure Java implementation of the Ruby interpreter is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application.