What is the result(switch and fall-through)? : Questions « Statements « SCJP

1. SCJP
2. Statements
3. Questions

public class MainClass{
  static int x = 7;

  public static void main(String[] args) {
    String s = "";
    for (int y = 0; y < 3; y++) {
      x++;
      switch (x) {
      case 8:
        s += "8 ";
      case 9:
        s += "9 ";
      case 10: {
        s += "10 ";
        break;
      }
      default:
        s += "d ";
      case 13:
        s += "13 ";
      }
    }
    System.out.println(s);
  }

  static {
    x++;
  }
}