Java OCA OCP Practice Question 1766

public class Main {
  public static void main(String[] args) {
    final int i = 3;
    Integer iRef = 5;//from   ww  w.j a  v a  2s  .  c o  m
    switch (iRef) {
      default:
        System.out.println("You are OK.");
      case 1:
      case i:
      case 2 * i:
        System.out.println("I am not OK.");
        break;
      case 4:
        System.out.println("It's OK.");
    }
  }
}

(a) The code will fail to compile because the type of the switch expression is not valid.
(b) The code will compile correctly and will only print the following, when run:

    You are OK./*from  www.  j  av  a 2 s  . co m*/
    I am not OK.

(c) The code will compile correctly and will only print the following, when run:

    You are OK.
    I am not OK.
    It's OK.

(d) The code will compile correctly and will only print the following, when run:

    It's OK.