I would like to ';Refresh'; my Java Skill by coding some example program step-by-step (following tutorial).?

Does anybody know which tutorial book or website that has a lot of tutorial to create sample program?I would like to ';Refresh'; my Java Skill by coding some example program step-by-step (following tutorial).?
http://www.javabeginner.com/


http://java.sun.com/docs/books/tutorial/


http://java.sun.com/javase/downloads/ind鈥?/a>


http://math.hws.edu/javanotes/


http://java.sun.com/javase/6/docs/api/





Any of these helpful?I would like to ';Refresh'; my Java Skill by coding some example program step-by-step (following tutorial).?
youtube.com