Important Notice:

Practice-It will be discontinued as of November 1st, 2024. After this date, the website will remain online for a transitional period, but login will be restricted to University of Washington NetID authentication. This marks the next phase towards the platform's full retirement. Thank you for your use and support of the application over the years.

If you are looking for an alternative, a similar tool, CodeStepByStep, was developed independently by the original author of Practice-It, and is available at codestepbystep.com**

logo Practice-It logo

inheritanceMystery

Author: Marty Stepp (on 2010/12/28)

Assume that the following classes have been defined:

public class Leela extends Fry {
    public void method1() {
        System.out.print("Leela1 ");
    }
    
    public void method2() {
        System.out.print("Leela2 ");
        super.method2();
    }
}

public class Farnsworth extends Bender {
    public void method1() {
        System.out.print("Farnsworth1 ");
    }
    
    public String toString() {
        return "Good news everyone!";
    }
}
public class Fry extends Bender {
    public void method2() {
        System.out.print("Fry2 ");
        super.method2();
    }
}

public class Bender {
    public void method1() {
        System.out.print("Bender1 ");
    }
    
    public void method2() {
        System.out.print("Bender2 ");
        method1();  
    }
    
    public String toString() {
        return "We're doomed!";
    }
}

Given the classes above, what output is produced by the following code?

Bender[] rodriguez = { new Leela(), new Bender(), new Farnsworth(), new Fry() };
for (int i = 0; i < rodriguez.length; i++) {
    rodriguez[i].method2();
    System.out.println();
    System.out.println(rodriguez[i]);
    rodriguez[i].method1();
    System.out.println();
    System.out.println();
}
elements[0]: Leela
elements[1]: Bender
elements[2]: Farnsworth
elements[3]: Fry

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.