public class BreakApp
{
   public static void main(String[] args)
   {
      int zaehler=42;
      int merker=0;

      while (true)
      {
         zaehler++;
         merker++;

         if (!(zaehler < 50)) // 42,43,44,45,46,47,48,49
            break;
      }
      System.out.println("merker: " + merker);
   }
}