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Thread: Methods with parameters and return values help

  1. #1
    Junior Member
    Join Date
    Oct 2013
    Thanked 0 Times in 0 Posts

    Default Methods with parameters and return values help

    Not really sure how to do this one. Appreciate any help:

    What is the output of the following program? Show your reasoning by including tables that illustrate how the values of the variables change over time, following the approach shown in Exercise 5 of Lab 4.
    public class TracingMethodCalls {
    public static int compute(int x, int y) {
    x += 3;
    y = 2*y - x;
    System.out.println(x + " " + y);
    return x;

    public static void main(String[] args) {
    int x = 1;
    int y = 3;
    x = compute(x, y);
    System.out.println(x + " " + y);
    compute(y, y);
    System.out.println(x + " " + y);
    y = 3 + 4 * compute(y, x);
    System.out.println(x + " " + y);

  2. #2
    Join Date
    Sep 2013
    Thanked 13 Times in 13 Posts

    Default Re: Methods with parameters and return values help

    What specifically are you having trouble with? Have you tried running the code to see what happens?

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