How to get average from given values

Question

How do I average?. I am suppose to find the average of the GPA, total of students, and the total of GPA. example:

input: 4

Answer 1

You are getting the input in your loop at this line

GPA = keyboard.nextDouble();

Problem is that, it will get another input and count will be incremented by 1. So your total will be 5. You can probably make it in this way

while (GPA >=0)
{
    GPA = keyboard.nextDouble();
    if (GPA >=0)
    {
       total = total + GPA;
       count++;
    }
    else
       break;
}