You can get tutorials from Sun Microsystems website... There you will get answers to many such questions...
What exactly is this program used for? I don't remember installing it and I guess it comes with one of Sun micro-system program.
Yes, it comes with NETBEANS IDE...
You can build apps, applets and components using the Java programming language.
It is a Windows 95/98/ME/NT/2000/XP disassembler and decompiler for Java.
Used for Desktop GUI application development.
You can get tutorials from Sun Microsystems website... There you will get answers to many such questions...
What exactly is this program used for? I don't remember installing it and I guess it comes with one of Sun micro-system program.
Yes, it comes with NETBEANS IDE...