If your program is: Show a calculator. Why should you need to write the code to do each individual part of the calculator? I disagree, dividing up the work y

If your program is: Show a calculator. Why should you need to write the code to do each individual part of the calculator? I disagree, dividing up the work yourself into chunks means you retain complete control of when your code executes. That actually decreases the complexity of your code, since you know when everything will execute.