public Rational ceiling()
  {
    int num;
    int denom;
    float high = 0;
    float a = ((float) getNumerator()/(float) getDenominator());
    if(a > 0)
    {
      high = new Float(a + (1-(a % 1)));
    }
    if(a < 0)
    {
      high = new Float(a + (a % 1));
    }
    denom = 1;
    num = (int) high;
    Rational cei = new Rational(num,denom);
    return cei;
  }


  public Rational floor()
  {
    int num;
    int denom;
    float low = 0;
    float a = ((float) getNumerator()/(float) getDenominator());
    if(a > 0)
    {
      low = new Float(a - (a % 1));
    }
    if(a < 0)
    {
      low = new Float(a - (1 - (a % 1)));
    }
    denom = 1;
    num = (int) low;
    Rational flo = new Rational(num,denom);
    return flo;
  }