How can we achieve polymorphism in Java?

Question

Accepted Answer

Polymorphism in Java can be achieved through method overriding and method overloading.

Method overriding allows a subclass to provide a different implementation of a method that is already defined in its superclass.
Method overloading allows multiple methods with the same name but different parameters to be defined in a class.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
Example of method overriding: public class Animal { public void makeSound() { System.out.println("Animal is making a sound"); } } public class Dog extends Animal { public void makeSound() { System.out.println("Dog is barking"); } } Animal animal = new Dog(); animal.makeSound(); // Output: Dog is barking
Example of method overloading: public class Calculator { public int add(int a, int b) { return a + b; } public double add(double a, double b) { return a + b; } } Calculator calculator = new Calculator(); int result1 = calculator.add(2, 3); // Output: 5 double result2 = calculator.add(2.5, 3.5); // Output: 6.0

Accepted Answer

Method overloading and method overriding

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