import java.io.BufferedReader;
import java.io.InputStreamReader;

// Att kastas vid division med noll
class DivZeroException extends Exception {

} // class DivZeroException

class Number {
    public Number(int tal) {
        this.num = tal;
    } // Number

    public void addera(int tal) {
        this.num = this.num + tal;
    } // addera

    public void dividera(int tal) throws DivZeroException {
        if (tal == 0)
            throw new DivZeroException();
        this.num = this.num / tal;
    } // dividera

    public int varde() {
        return this.num;
    }

    private int num = 0;

    public static void main(String[] args) {
      BufferedReader kbd_reader =
          new BufferedReader(
                 new InputStreamReader(System.in));
      int tal = 1;
      String buf;
      Number num = new Number(14);

      System.out.println("Startar med: " + num.varde());
      System.out.println("Adderar udda tal.");
      System.out.println("Dividerar jämna tal." );

      try {
        while (tal != 99) {
            System.out.print("Ge ett tal (99 avslutar): ");
            buf = kbd_reader.readLine();
            tal = Integer.parseInt(buf);
            if (tal % 2 == 1)
                num.addera(tal);
            else
                try {
                    num.dividera(tal);
                }
                catch (DivZeroException e) {
                    System.out.println("Ojdå! Division med 0.");
                }

            System.out.println("Nu är talet: " + num.varde());
        } // while
      } // try
      catch (Exception e) {
          System.out.println("Fel inmatning / tangentbordsfel");
      } // catch
    } // main
} // class Number