[CentOS] How do I Install Java on CentOS 4

Hello,
	
	I have just successfully installed Cent OS Linux to my Dual Processor
Machine, it will be operating as a web-server but i need to install it
as local so I know how to set it up for the Internet but I can't Install
Java and flash. Would anyone be able to help me Please?

Yours Truly,
Samuel
Owner and Chief Technical Officer of Totally Equal Domain Service
(Faction of The Perthes Foundation)