Chapter 5.3, Problem 10SC

What does this program print? Use a diagram like Figure 3 to find the answer.

public static double mystery(int x, int y)

{

 double z = x + y;

 z = z / 2.0;

 return z;

}

public static void main(String[] args)

{

 int a = 5;

 int b = 7;

  System.out.println(mystery(a, b));

}