instanceof

The instanceof operator is used in Java to check whether an object is an instance of a particular class or implements a particular interface. It returns true if the object is an instance of the specified class or implements the specified interface, and false otherwise.

Here is the syntax for using the instanceof operator:

object instanceof Class/Interface

For example, let's say we have a class called "Person" and an object called "personObj". We can use the instanceof operator to check if the "personObj" is an instance of the "Person" class:

if (personObj instanceof Person) { // Code to be executed if personObj is an instance of Person } else { // Code to be executed if personObj is not an instance of Person }