Method Overriding
 Source Code


// Contributed by - Anuj Das ( GC College, Silchar - @ Department of Computer Science )

class Parent {
	void show() {
		System.out.println("Parent's show() invoked!");
	}
}

class Child extends Parent {
// This method overrides show() of Parent
	@Override
	void show() {
		System.out.println("Child's show() invoked!");
	}
}

class MethodsOverriding {
	public static void main(String[ ] args) {
	
// If a Parent type reference refers to a Parent object, then Parent's show is called.
		Parent obj1 = new Parent();
		obj1.show();

//	If a Parent type reference refers to a Child object Child's show() is called. 
//	This is called RUN TIME POLYMORPHISM.
		Parent obj2 = new Child();
		obj2.show();
	}
}

cmd->  javac  MethodsOverriding.java
cmd->  java  MethodsOverriding

Parent's show() invoked!
Child's show() invoked!