Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Inheritance in Java Inheritance in Java Everything Inherits from Object

Chance Edward
Chance Edward
4,507 Points
Posted by Chance Edward
Chance Edward
4,507 Points

How would you fix this code?

How would you fix this code?

public class Main { public static void main(String[] args) { Thing widget = new Widget(); .refuseToWork(); } }

class Widget extends Thing { String[] excuses = {"It's too heavy.", "I don't know how.", "You know I don't speak Spanish."}; int excuseId = 1;

void refuseToWork() {
    String excuse = excuses[++excuseId];
    System.out.println(excuse);
}

}

class Thing { String purpose = "do stuff";

void printPurpose() {
    System.out.println(purpose);
}

}

1 Answer

Steven Parker
Steven Parker
229,745 Points
Steven Parker
Steven Parker
229,745 Points

Since "widget" was declared as a Thing, you can't directly access the refuseToWork method which is unique to a Widget.

But if you cast the reference to it as a Widget, the compiler can then call the method:

       ((Widget)widget).refuseToWork();