Module 22: Method Overriding

🔁 What is Method Overriding?

Method Overriding occurs when a subclass provides a specific implementation of a method that is already defined in its superclass. The method must have the same name, return type, and parameters.

⚠️ Key Points

• Occurs in inheritance (subclass-superclass relationship).
• Used to achieve runtime polymorphism.
• Overridden method must have the same signature.
• Cannot override static, final, or private methods.
• @Override annotation is optional but recommended.

💡 Example: Method Overriding

                    class Animal {
                      void sound() {
                        System.out.println("Animal makes a sound");
                      }
                    }
                    
                    class Dog extends Animal {
                      @Override
                      void sound() {
                        System.out.println("Dog barks");
                      }
                    }
                    
                    public class Main {
                      public static void main(String[] args) {
                        Animal a = new Dog();
                        a.sound();  // Outputs: Dog barks
                      }
                    }