java - Where is the JDK? -

i mac noob using mountain lion 10.8.3

i have installed jdk. when java -version get:

admins-macbook-pro-5:~ me$ java -version java version "1.6.0_51" java(tm) se runtime environment (build 1.6.0_51-b11-457-11m4509) java hotspot(tm) 64-bit server vm (build 20.51-b01-457, mixed mode) admins-macbook-pro-5:~ alexstaveley$ java /usr/bin/java 

but i'd know jdk installed. in windows, knew c:\jdk1.6 how find out on mac?

thanks.

which gives correct output

/usr/bin/java 

which symlink ls -l /usr/bin/java see actual binary