logo Practice-It logo

Main Page → Problems → Solve a Problem

assertions

Language/Type: Java assertions
Author: Eric Spishak (on 2010/12/28)

You will identify various assertions as being either always true, never true or sometimes true/sometimes false at various points in program execution. The comments in the method below indicate the points of interest. 

public static void mystery(int x, int y) {
    int z = 0;

    // Point A
    while (x != y) {
        // Point B
        z++;

        if (x > y) {
            // Point C
            x = x / 10;
        } else {
            // Point D
            y = y / 10;
        }
    }

    // Point E
    System.out.println(x + " " + y + " " + z);
}

Fill in each box of the the table below with ALWAYS, NEVER or SOMETIMES.

x > y z == 0 x == y
Point A
Point B
Point C
Point D
Point E

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.