1. In addition to the required methods, you should also implement a main method and a printMatrix() method that will allow you to test your CharMatrix class separately from the rest of the Chomp program. 2. When the Chomp program calls fillRect and clearRect, it will send numbers that are friendly to array subscripts. For example, if it wants to fill the entire 4x7 CharMatrix with 'P', it would call fillRect(0,0,3,6,'P'); Think about how this will affect your conditional statement in your for loop.