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Hogwarts

Language/Type: Java parameters return
Author: Mehran Sahami (on 2017/10/03)

For the following console program, trace through its execution by hand to write the three lines of output that are produced when it runs: 

/*
 * File: Hogwarts.java
 * -------------------
 * This program is just testing your understanding of parameter passing.
 */
public class Hogwarts {
    public static void main(String[] args) {
        bludger(2001);
    }

    private static void bludger(int y) {
        int x = y / 1000;
        int z = (x + y);
        x = quaffle(z, y);
        println("bludger: x = " + x + ", y = " + y + ", z = " + z);
    }

    private static int quaffle(int x, int y) {
        int z = snitch(x + y, y);
        y /= z;
        println("quaffle: x = " + x + ", y = " + y + ", z = " + z);
        return z;
    }

    private static int snitch(int x, int y) {
        y = x / (x % 10);
        println("snitch: x = " + x + ", y = " + y);
        return y;
    }
}
line 1
line 2
line 3

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