You were offered bonus marks for separating the user interface code from the main logic of your program. This design choice makes it very easy to replace the user interface without having to change the main program logic.

Make a copy of the class BasicUI, called ArrayUI. Within ArrayUI, make sure all references to BasicUI are renamed to ArrayUI.

In this task, you will modify the updateScreen() method of class ArrayUI to print out two lines in the following format:

....%.

_#__PX

This line gives a spatial view of where the all of the objects are. For example, the player, represented by "P" is at position 4 and is holding stone "%". The treasure chest "X" is at position 5. The stone "#" is still on the ground at position 1. This task must be implemented using two arrays of chars in class ArrayUI. The first array, called sky will hold the array of characters representing {‘.','.','.','.','%','.'} and the second array, called ground, will hold the array of characters representing {‘_','#','_','_','P','X'}. Of course, the actual characters found in the array will change as the game progresses.