What will be the output for the below code?

class A{
      public void printValue(){
            System.out.println("A");
      }
}
class B extends A{
      public void printValue(){
            System.out.println("B");
      }
}

public class Test{
      public static void main(String... args){
            A b = new B();
            newValue(b);
      }
      public static void newValue(A a){
            if(a instanceof B){
                  ((B)a).printValue();
            }
      }
}

A. A

B. B

C. Compilation fails with an error at line 4

D. Compilation fails with an error at line 8

E. None of these

Answer: Option B

Solution(By Examveda Team)

Instanceof operator is used for object reference variables to check whether an object is of a particular type. In newValue(b); b is instance of B so it works properly.