default works just like any other case for fall-through! : switch « Statements « SCJP

1. SCJP
2. Statements
3. switch

public class MainClass{
    public static void main(String[] argv){
        int x = 7;
        switch (x) {
          case 2:  System.out.println("2");
          default: System.out.println("default");
          case 3: System.out.println("3");
          case 4: System.out.println("4");
        }
    }
}

default
3
4