What is wrong with the following switch statement? : Questions « Statements « SCJP

1. SCJP
2. Statements
3. Questions

public class MainClass {
  public static void main(String[] argv) {
    
    int i = 2;
    switch (i == 10) {
    case '1':
      ++i;
      break;
    case "2":
      --i;
    case 3:
      i *= 5;
      break;
    default:
      i %= 3;
    }

  }
}