[nRike]

Have you tried Codecombat.com? I think this is a great way to get started, have fun and at the same time learn the basic concepts of computer programming.

Once he understands this, you should encourage to hack into Minecraft hacks.

Later you can ask him about start their own projects and help him when he got stuck.

Programming should be fun and using a language only a tool for their mind, so help him become passionate about build things for himself.