How do I make and update method in java?

How do I make and update method in java?

References

Reference NO 1

http://www.tutorialspoint.com/java/java_methods.htm

Reference NO 2

http://pic.dhe.ibm.com/infocenter/rsawshlp/v7r5m0/topic/com.ibm.etools.j2c.taderc25.tutorial.doc/topics/exer13.html

Reference NO 3

http://stackoverflow.com/questions/10050866/java-swing-running-gui-update-methods-from-separate-class-methods

Reference NO 4

http://www.dreamincode.net/forums/topic/190944-creating-an-updater-in-java/

Reference NO 5

http://www.cs.toronto.edu/~dianeh/tutorials/params/

Reference NO 6

http://java-swing-jsp.wonderhowto.com/how-to/create-update-and-restore-screen-methods-java-321266/

Reference NO 7

http://java.about.com/od/workingwithobjects/a/constructor.htm

Reference NO 8

http://www.daniweb.com/software-development/java/threads/13283/getset-methods-in-java