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Thread: Methods with parameters and return values help

  1. #1
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    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
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    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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