How Do I / Can I Upgrade Java from Eclipse?

I'm brand new to JAva/Eclipse/Android but gearing up! I've got everything installed and working but want to know how Java is upgraded. Can it be done through Eclipse? I noticed that the JDK install wants to create a new folder each time based on its version. I'll do whatever is needed but appreciate your input 开发者_如何学Pythonto get me started.

Just install JDK the usual way. The new folder is not a problem. Once you've installed the JDK, you can instruct Eclipse to use it by Window > Preferences > Java > Installed JREs. You can add or edit the installed JREs over there. If you choose Edit, you just have to change the home directory and the name.

There's no upgrade for Java, in fact, you always install a new version of Java on your system and and free to decide whether do uninstall the previous one.

The eclipse IDE will run with the systems default java runtime. And it doesn't need a JDK, it has it's own compiler.