CODE EXAMPLE FOR JAVA

Java instanceof

// Java Program to check if an object of the subclass
// is also an instance of the superclass
// superclass
class Animal {
}

// subclass
class Dog extends Animal {
}
class Main {
  public static void main(String[] args) {
    // create an object of the subclass
    Dog d1 = new Dog();
    // checks if d1 is an instance of the subclass
    System.out.println(d1 instanceof Dog);        // prints true
    // checks if d1 is an instance of the superclass
    System.out.println(d1 instanceof Animal);     // prints true
  }
}