The overriding method are define in the subclass that has same name,same argument and same return type as a method in the superclass.

class Animal {
    public void eat(String str) {
        System.out.println("Eating for grass");

    }
}

class Cat extends Animal {
    public void eat(String str) {
        System.out.println("Drinking for milk");

    }
}

class Dog extends Animal {
    public void eat(String str) {
        System.out.println("Eating for bread");

    }
}

class Goat extends Animal {
    public void eat(String str) {
        System.out.println("");

    }
}

public class Test {
    public static void main(String[] args) {
        Animal a = new Animal();
        Cat b = new Cat();
        Dog c = new Dog();
        Goat d = new Goat();
        a.eat("grass");
        b.eat("milk");
        c.eat("bread");
        d.eat("grass");
    }
}

Output:

Eating for grass
Drinking for milk
Eating for bread

Description:- The above code demonstrates you the overriding method.we have created a class named Animal, Animal are the supper class .we have seen that a method defined in the supper class is inherited by its subclass and is used by the objects created bye the subclass.now define a method in the subclass that has the same name, same arguments and same return type as a method in the superclass.