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Java Interfaces in Java Interfaces in Java Interfaces Quiz

Posted by Anas Ahmad
Anas Ahmad
432 Points

Fill in the blank to create an Array that can contain both Wine and Cheese:

public class Main {
    public static void main(String[] args) {
        Wine wine = new Wine();
        Cheese cheese = new Cheese();
        --Object[]--- foods = {wine, cheese};
    }
}

class Wine implements Drinkable, Delicious {
    //omitted
}

class Cheese extends Dairy implements Delicious {
    // omitted
}

3 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

You're close, but instead of "Object", look at the other classes that both of these either extend or implement.
Do they have something in common?

Simbarashe Mazambani
Simbarashe Mazambani
1,998 Points
Simbarashe Mazambani
Simbarashe Mazambani
1,998 Points

Delicious[ ]

yige yang
yige yang
8,329 Points
yige yang
yige yang
8,329 Points

why is Delicious[] working??? I tried other similar words, but they didn't work.

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

Because that's the only thing implemented by both "Cheese" and "Wine".