Where is my Java SDK 7u7 installed?

I downloaded and installed Java 1.7 from this site.

When I run the Java Control Panel, I could check I have it correctly installed.

However, when I checked the Java version from command line, the version that I use is Java 1.6.

java -version
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-11M3720)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)

The system directory doesn't have the 1.7.

What's wrong with this?

• Where is the Java 1.7 is installed?
• How can I make the Java 1.7 as default Java?

I found Java 1.7 SDK in /Library/Java/JavaVirtualMachines/jdk1.7.0_07.jdk, and all the binaries in /Library/Java/JavaVirtualMachines/jdk1.7.0_07.jdk/Contents/Home/bin.

And by clicking the jdk file, I could arrange the order so that Java SE 7 is executed first.

java -version
java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)

And I could also bring up the app from /Applications/Utilities/Java Preferences.app

For eclipse, I could add one line in /Applications/eclipse/Eclipse.app/Contents/MacOS/eclipse.ini to teach eclipse what Java it will use :

-vm
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/bin/java