The newest version of JAVA is 7 update 76 and 8 update 31 (January 20, 2015)
1. To update Java:
Windows 7 and 8: Click Start > Control Panel
Type Java in the Search Control Panel located in the upper right corner. Windows 8 has the search bar as well from the home screem. Just move your cursor to the RIGHT side of the screen to have a "tab" pop out with the search bar.
2. Launch the Java Control Panel by double-clicking on the Java icon. The Java Control Panel appears.
3. Click the Update tab to access the settings - If you don't see the "Update" tab please visit http://www.java.com/en/ or call the Help Desk
4. Click "Update Now"
You can uninstall older versions of Java manually in the same way as you would uninstall any other software from your Windows computer.
Older versions of Java may appear in the program list as J2SE, Java 2, Java SE or Java Runtime Environment.
Windows 8 - Uninstall Programs
Windows 7 and Vista - Uninstall Programs
Windows XP - Uninstall Programs