Super Demo in Java.

Super.java

/*
 * Super Demo.
 *
 * super() is used to access members of superclass.
 */

class A {
  int x = 1000;

  void display() {
    System.out.println(x);
  }
}

class B extends A {
  int x = 2000;

  void display() { // Overriden method.
    System.out.println(x); // Invokes local member.
    System.out.println(super.x); // Invokes superclass member.
    super.display(); // Invokes display from class A.
  }
}

class Super {
  public static void main(String[] args) {
    B b1 = new B();
    b1.display();
  }
}