Polymorphism

Polymorphism:

Definition: 

  Polymorphism allows objects of different classes to be treated as objects of a common superclass.

Explanation :

     Polymorphism enables code to work with objects of various classes through a common interface. Method overloading and overriding facilitate polymorphism.

Example:

class Shape {

    void draw() {

        System.out.println("Drawing a shape.");

    }

}

class Circle extends Shape {

    @Override

    void draw() {

        System.out.println("Drawing a circle.");

    }

}

class Square extends Shape {

    @Override

    void draw() {

        System.out.println("Drawing a square.");

    }

}

public class Main {

    public static void main(String[] args) {

        Shape[] shapes = new Shape[] { new Circle(), new Square() };

        for (Shape shape : shapes) {

            shape.draw(); // Output: Drawing a circle. Drawing a square.

        }

    }

}