public static double average(int[]
grades)
// Calculates and returns the average grade in an
// array of grades.
// Assumption: All array
slots have valid data.
{
int total = 0;
for (int i = 0; i < grades.length; i++)
total = total + grades[i];
return (double) total / (double) grades.length;
}
Passing an Array as Arguments