overriding-keyword

// Base Class
class Parent {
    void show() { System.out.println("Parent's show()"); }
}
 
// Sub class
class Child extends Parent {
    // This method overrides show() of Parent
    @Override 
    void show() {
        System.out.println("Child's show()");
    }
}
 
// Driver class
class Main {
    public static void main(String[] args)
    {
        Parent obj1 = new Parent();
        obj1.show();
        //"Parent's show()"
 
        Parent obj2 = new Child();
        obj2.show();
        //"Child's show()"
    }
}