Parameter Mystery

	At the bottom of the page, write the output produced by the following program, as it would appear on the console. (Though the program uses words related to arithmetic, the output does not necessarily follow the rules of addition.) 

public class ParameterMystery {
	public static void main(String[] args) {
		String i = "j";
		int j = -1;
		int k = 2;
		String x = "5";
		int y = 7;
		silly(k, i, j);
		silly(y, x, k);
		silly(k, "y", 4);
		silly(j + 1, x + 1, j);
	}
	public static void silly(int k, String i, int j) {
		System.out.println(j + " + " + k + " + " + i);
	}
}

1) silly(k, i, j);

2) silly(y, x, k);

3) silly(k, "y", 4);

4) silly(j + 1, x + 1, j);