How would I go about converting my gameloop (below) from it's currently implementation (using System.currentTimeMillis()) to System.NanoTime? Everything I'm attempted thus far has resulted in everything running at super-speed What I've tried I've tried changing my references of 1000 to 1000000...

Your fps is actually displaying correctly (as in, the number displayed is equal to the number of renders per second). Notice that you are calling render() and incrementing fps outside of the while(accumulator > dt) loop. This means that your fps variable is being incremented on every single cycle...

You are the victim of branch prediction fail. What is Branch Prediction? Consider a railroad junction: Image by Mecanismo, from Wikimedia Commons: http://commons.wikimedia.org/wiki/File:Entroncamento_do_Transpraia.JPG Now for the sake of argument, suppose this is back in the 1800s - before...

I was trying below code: System.out.println(false!=false); Why does this print 'false'?

The problem The problem lies in your method of collision resolution. Your method goes as follows: Move the player. Check for collision. Determine the shortest collision depth. Resolve collision. The problem with this, is that it can easily move the player in the wrong direction. You can see ...