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Java Inheritance in Java Inheritance in Java Everything Inherits from Object

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
231,269 Points
Steven Parker
Steven Parker
231,269 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();