Multiple choice

What will be the output of the program? public class Switch2 { final static short x = 2; public static int y = 0; public static void main(String [] args) { for (int z=0; z < 4; z++) { switch (z) { case x: System.out.print("0 "); default: System.out.print("def "); case x-1: System.out.print("1 ");
break; case x-2: System.out.print("2 "); } } } }

  1. 0 def 1

  2. 2 1 0 def 1

  3. 2 1 0 def def

  4. 2 1 0 def 1 def 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When z == 0 , case x-2 is matched. When z == 1, case x-1 is matched and then the break occurs. When z == 2, case x, then default, then x-1 are all matched. When z == 3, default, then x-1 are matched. The rules for default are that it will fall through from above like any other case (for instance when z == 2), and that it will match when no other cases match (for instance when z==3).

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