Where is the Java SDK folder in my computer? Ubuntu 12.04

Question

I know it\'s installed because when I type:

$java -version

I get:

OpenJDK Runtime Environment (IcedTea6 1.12.5) (6b27-1.12.         


        

Answer 1

Location of JRE in Ubuntu:

/usr/lib/jvm/java-7-oracle/jre