logo Practice-It logo

Main Page → Problems → Solve a Problem

recursiveTracing

Language/Type: Java recursion recursive tracing
Author: Robert Baxter

For each call to the following method, indicate what console output is produced: 

public static void mystery(int x, int y) {
    if (x > y) {
        System.out.print("*");
    } else if (x == y) {
        System.out.print("=" + y + "=");
    } else {
        System.out.print(y + " ");
        mystery(x + 1, y - 1);
        System.out.print(" " + x);
    }
}
mystery(3, 3);
mystery(5, 1);
mystery(1, 5);
mystery(2, 7);
mystery(1, 8);

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.