To develop programming skills in java you must work hard and start learning.
For start java programming you need:
1.First required java compiler for this you need to download JDK .
2.Then you start with simple application that define at the site
3.You need to follow step that provide roseindia in the java binger tutorial.
4.For more see the link http://www.roseindia.net/java/new-to-java.shtml