private void recalcLimits() {
protected void recalcLimits() {
    private void recalcLimits() {        Enumeration all_years = temp_table_.keys();        while (all_years.hasMoreElements()) {            float year = ((Float) all_years.nextElement()).floatValue();            float temp = ((Float) temp_table_.get(new Float(year))).floatValue();            if (year > max_year_)                max_year_ = year;            if (year < min_year_)                min_year_ = year;            if (temp > max_temp_)                max_temp_ = temp;            if (temp < min_temp_)                max_temp_ = temp;        }    }