class InstanceofDemo {
  public static void main(String[] args) {

    Parent obj1 = new Parent();
    Parent obj2 = new Child();

    System.out.println("obj1 instanceof Parent: "
      + (obj1 instanceof Parent));
    System.out.println("obj1 instanceof Child: "
      + (obj1 instanceof Child));
    System.out.println("obj1 instanceof MyInterface: "
      + (obj1 instanceof MyInterface));
    System.out.println("obj2 instanceof Parent: "
      + (obj2 instanceof Parent));
    System.out.println("obj2 instanceof Child: "
      + (obj2 instanceof Child));
    System.out.println("obj2 instanceof MyInterface: "
      + (obj2 instanceof MyInterface));
  }
}