计算工龄原则：若是2000-10-12作为开始工作时间，则到下一年的2001-10-13算为一年。有个bug，不满一年的工龄是错误的。 import java.util.Date; import java.util.Calendar;

public int workAge(Date nowTime, Date workTime){
      int year = 0;     //当前时间的年月日     Calendar cal = Calendar.getInstance();     cal.setTime(nowTime);     int nowYear = cal.get(Calendar.YEAR);     int nowMonth = cal.get(Calendar.MONTH);     int nowDay = cal.get(Calendar.DAY_OF_MONTH);     //开始工作时间的年月日     cal.setTime(workTime);     int workYear = cal.get(Calendar.YEAR);     int workMonth = cal.get(Calendar.MONTH);     int workDay = cal.get(Calendar.DAY_OF_MONTH);     //得到工龄     year = nowYear - workYear; //得到年差     //若目前月数少于开始工作时间的月数，年差-1     if (nowMonth < workMonth){
          year  = year - 1;     }else if (nowMonth == workMonth){
          //当月数相等时，判断日数，若当月的日数小于开始工作时间的日数，年差-1         if (nowDay < workDay){
              year = year - 1;         }     }     return year; }