CODE EXAMPLE FOR JAVA

java inheritance

public class Sample {
    public static void main(String[] args) {
        Dog dog = new Dog();
        Cat cat = new Cat();
        Duck duck = new Duck();
        System.out.println(dog.getSound());
        System.out.println(cat.getSound());
        System.out.println(duck.getSound());
    }
}

class Animal {
    private String sound = "anything";

    public void setSound(String sound) {
        this.sound = sound;
    }

    public String getSound() {
        return sound;
    }
}

class Dog extends Animal {
    private String sound = "Aw aw";

    public String getSound() {
        return sound;
    }
}

class Cat extends Animal {
    private String sound = "Meow meow";

    public String getSound() {
        return sound;
    }
}

class Duck extends Animal {
    private String sound = "Quack Quack";

    public String getSound() {
        return sound;
    }
}