title: JAVA_HOME or PATH or BOTH?
body: <p>I was watching the Android development video and they asked us to install JDK and create <strong>JAVA_HOME</strong> environment variable.
  I already have MyEclipse installed and I previously had setup the <strong>PATH</strong> variable(giving it the directory of JDK), do I still need a JAVA_HOME variable ??? If yes then why ???</p>