Java - How to break out of while with hasNext() condition?

Question

I am writing a simple program to calculate the average of a set of numbers. You get the numbers using Scanner, so I am using while loop with .has

Answer 1

The problem is that Scanner will always expect an integer from System.in. You could break out of the loop using a sentinal value e.g. -1:

if (temp == -1) {
   break;
}