Java中计算任意两个日期之间的工作天数

Java中计算任意两个日期之间的工作天数(3)    etmp = 7 - d2.get(Calendar.DAY_OF_WEEK);
   if (stmp != 0 && stmp != 6) {// 开始日期为星期六和星期日时偏移量为0
    charge_start_date = stmp - 1;
   }
   if (etmp != 0 && etmp != 6) {// 结束日期为星期六和星期日时偏移量为0
    charge_end_date = etmp - 1;
   }
//  }
  result = (getDaysBetween(this.getNextMonday(d1), this.getNextMonday(d2)) / 7)
    * 5 + charge_start_date - charge_end_date;
  //System.out.println("charge_start_date>" + charge_start_date);
  //System.out.println("charge_end_date>" + charge_end_date);
  //System.out.println("between day is-->" + betweendays);
  return result;
 }

 public String getChineseWeek(Calendar date) {
  final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五",
    "星期六" };

  int dayOfWeek = date.get(Calendar.DAY_OF_WEEK);

  // System.out.println(dayNames[dayOfWeek - 1]);
  return dayNames[dayOfWeek - 1];

 }

 /**
  * 获得日期的下一个星期一的日期
  *
  * @param date
  * @return
  */
 public Calendar getNextMonday(Calendar date) {
  Calendar result = null;
  result = date;
  do {
   result = (Calendar) result.clone();
   result.add(Calendar.DATE, 1);
  } while (result.get(Calendar.DAY_OF_WEEK) != 2);
  return result;
 }
 
 /**
  *
  * @param d1
  * @param d2
  * @return
  */
 public int getHolidays(Calendar d1,Calendar d2){
  return this.getDaysBetween(d1, d2)-this.getWorkingDay(d1, d2);
 }
}