public class BreakToWhile{

  public static void main(String[] args) {

    int luku;
    int summa = 0;

    System.out.print("Anna luku (lopetus on -1): ");
    luku = Oma.lueInt();

    while (luku >= 0)
    {
	summa += luku;
        System.out.print("Anna luku (lopetus on -1): ");
        luku = Oma.lueInt();
    }
    System.out.println("Summa on " + summa);
  }
}