Learning Java

The code that goes on the robot is written in Java. There are a lot of great resources online to learn the basics of Java, which is all you need to begin programming the robot.

Oracle, the company that makes Java, has a good tutorial: http://docs.oracle.com/javase/tutorial/

There are also some great tutorials on YouTube from TheNewBoston

Also: http://www.javabeginner.com/

Don't worry about going into the depths of Java, all that is necessary to program the robot is understanding the format and logic behind Java programs. Knowing some basic syntax (loops, if statements, and more) is also good knowledge to have.

Finally, this is your Java bible: http://docs.oracle.com/javase/8/docs/api/ This is the Java API. It contains all the methods in Java.