What is the output from the following code
class Employee { private String name = "Unknown"; public void setName(String name) { this.name = name; } public String getName() { return name; } } class Manager extends Employee { public void giveOrder(){ System.out.println("order"); } } class Clerk{ } public class Main { public static void main(String[] args) { Manager mgr = new Manager(); if (mgr instanceof Clerk) { System.out.println("clerk"); } } }
if (mgr instanceof Clerk) { // A compile-time error
The use of the instanceof operator will generate a compiler error because the Clerk class is not in the inheritance-chain of the Manager class.