Comparing Reference Variables

This code illustrates the two different ways of comparing reference variables:

• The == operator tests for memory equality. In other words, it checks if two reference variables are aliases of one another.
• The equals() method checks state equality. In other words, do "this" object and the "other" object have the same state.

And don't forget about the != operator. This checks if two variables do *not* have the same value. For reference variables, the != operator checks if the two variables do *not* point to the same object.

• DieComplete.java (added an equals() method at the very bottom)
• DieController.java