Exercises 1. write a getcount method in the intarrayworker class that returns the count of the number of times a passed integer value is found in the matrix. there is already a method to test this in intarrayworkertester. just uncomment the method testgetcount() and the call to it in the main method of intarrayworkertester. 2. write a getlargest method in the intarrayworker class that returns the largest value in the matrix. there is already a method to test this in intarrayworkertester. just uncomment the method testgetlargest() and the call to it in the main method of intarrayworkertester. 3. write a getcoltotal method in the intarrayworker class that returns the total of all integers in a specified column. there is already a method to test this in intarrayworkertester. just uncomment the method testg