package com.nishith.java.operators;

public class InstanceOfExamples {

public static void main(String[] args) {

// instanceof is used to check if an object is of a particular type.

SubClass subClass = new SubClass();

Object subClassObj = new SubClass();

SubClass2 subClass2 = new SubClass2();

SomeOtherClass someOtherClass = new SomeOtherClass();

System.out.println(subClass instanceof SubClass);// true

System.out.println(subClass instanceof SuperClass);// true

System.out.println(subClassObj instanceof SuperClass);// true

System.out.println(subClass2 instanceof SuperClassImplementingInteface);// true

// Since Super Class implements the interface, this is true

System.out.println(subClass2 instanceof Interface);// true

// Compile Error : If the type compared is unrelated

// System.out.println(subClass

// instanceof SomeOtherClass);//Compiler Error

// Object referred by subClassObj(SubClass)-NOT of type SomeOtherClass

System.out.println(subClassObj instanceof SomeOtherClass);// false

}

}

class SuperClass {

};

class SubClass extends SuperClass {

};

interface Interface {

};

class SuperClassImplementingInteface implements Interface {

};

class SubClass2 extends SuperClassImplementingInteface {

};

class SomeOtherClass {

};