Practice›Java Fundamentals›Module 7. Inheritance & Polymorphism›7.4 Polymorphism

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7.4 Polymorphism — longest name

Total: 0 / 3 pts

Practice mode — check each part and get hints as you go.

Task

Fill in longestName so that it returns the longest name among the animals. You may assume the array is not empty.

The program prints Whiskers.

Your solution

class Animal {
    private String name;

    public Animal(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public String describe() {
        return name + " is an animal";
    }
}

class Dog extends Animal {
    public Dog(String name) {
        super(name);
    }

    @Override
    public String describe() {
        return getName() + " is a dog";
    }
}

class Cat extends Animal {
    public Cat(String name) {
        super(name);
    }

    @Override
    public String describe() {
        return getName() + " is a cat";
    }
}

public class Main {

    public static String longestName(Animal[] animals) {
        // return the longest name in the array

    }

    public static void main(String[] args) {
        Animal[] zoo = {new Dog("Rex"), new Cat("Whiskers")};
        System.out.println(longestName(zoo));
    }
}

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