Need a quick way to switch java versions in Mac? ~> java_use 1.6

java_ls.sh

#!/bin/bash

/usr/libexec/java_home -V 2>&1 | grep -E "\d.\d.\d_\d\d" | cut -d , -f 1 | colrm 1 4 | grep -v Home

java_use.sh

#!/bin/bash

export JAVA_HOME=$(/usr/libexec/java_home -v $1)
java -version

I have these sitting in my ~/bin directory.