import java.util.*;
public class ExamReview
{
public int forEachLoop(ArrayList<Integer> arr)
{
// Add up the elements of the array parameter
int sum = 0;
for (int foo : arr)
{
sum = sum + foo;
}
return sum;
}
public static int nthTerm (int a, int r, int n)
{
if (n < 1)
return -1;
else
{
int result = a; // in case n is 1
while (n > 1) // Want loop to run (n - 1) times
{
result = result * r;
n = n - 1;
}
return result;
}
// return a * (r^(n-1))
}
}