Programming Homework Help

What is the output of the following program?

 

public class
ReferenceMystery1 {

     public
static void main(String[] args) {

          int
x = 0;

          int[]
a = {0, 0, 0, 0};

          x++;

          mystery(x,
a);

          System.out.println(x
+ ” ” + Arrays.toString(a));

     }

 

     public
static void mystery(int x, int[] a) {

          x++;

          a[x]
+= 1;

          System.out.println(x
+ ” ” + Arrays.toString(a));

     }

}