program will set the total to zero when Calculator is initialized

This program will set the total to zero when Calculator is initialized. * It will do basic mathematics such as addition, subtraction, division, * and multiplication.It will take in any integer and do the calculation * with the total. It will update the total when ever any calculation is * being made. * When the total is being divided by zero, the total will be set to zero. * It will also print out all of the process made in the program so far.