[CentOS] Installing Java 7 on a system with Java 6

My system is 5.6, with upgrades. I installed Java 6 from the Centos 
repository. It doesn't seem to have Java 7. I need the development 
package. How can I install Java 7 development safely? I imagine I will 
first have to uninstall Java 6. 

Thanks,
John

-- 
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities