筆記

import java.text.SimpleDateFormat;
import java.util.Calendar;
/**
       * 節假日與週末重疊 天數
       * @param startHoliday 假期開始時間
       * @param holiday 假期天數
       * @param restType 休息方式 1:雙休  2:週日單休
       * @return
       * @throws Exception
       */
      private long isReapert(String startHoliday,long
 
 holiday,long restType) throws Exception{
          long reatpertDay =0;
          SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
          int dayForWeek = 0;
          if(holiday==1){//假期只有一天，且為雙休形式,得出一天假期為星期幾
              Calendar c = Calendar.getInstance();
              c.setTime(format.parse(startHoliday)); 
              if
 
(c.get(Calendar.DAY_OF_WEEK) == 1){
               dayForWeek = 7;
              }else{
               dayForWeek = c.get(Calendar.DAY_OF_WEEK) - 1;
              }
              if(restType==1){
                  if(dayForWeek==6||dayForWeek==7){
                      reatpertDay = 1;
                  }
              }
              if
 
(restType==2){
                  if(dayForWeek==7){
                      reatpertDay = 1;
                  }
              }
          }else{
              Calendar calendar  =  new GregorianCalendar(); 
              calendar.setTime(format.parse(startHoliday));
              for(int i=0;i<holiday;i++){
                  calendar.add(calendar.DATE, i);
                  if(calendar.get(Calendar.DAY_OF_WEEK) == 1){
                       dayForWeek = 7;
                      }else{
                       dayForWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
                      }
                  if(restType==1){
                      if(dayForWeek==6||dayForWeek==7){
                          reatpertDay++;
                      }
                  }
                  if(restType==2){
                      if(dayForWeek==7){
                          reatpertDay++;
                      }
                  }
              }
          }
        return reatpertDay;
      }

要根據專案實際情況而定