I was watching the Android development video and they asked us to install JDK and create JAVA_HOME environment variable. I already have MyEclipse installed and I previously had setup the PATH variable(giving it the directory of JDK), do I still need a JAVA_HOME variable ??? If yes then why ???
If the application you are using is looking for a specific dataset in the JAVA_HOME environment variable and it isn't there, it is not going to be happy.
Other applications might look for the JDK path in the PATH environment variable, but just because you have it there doesn't mean it will work for other applications that need it in a separate variable.