The simple checksum of a number is computed by adding up the digits of the number, and then extracting the rightmost digit of that sum. For example, the simple checksum of 1038 would be 2 (adding the digits gives us 12, the rightmost digit of which is 2). Assume that the int variable n has been declared and assigned an integer value, and that the int variable checksum has been declared and initialized to 0. Write some Java code that will computethe simple checksum of n and store the result into checksum. You may declare any additional variables that you need.
Hint: A while loop and the modulo (%) operator will be extremely helpful for this problem!