取得今天的工作日，今天是周几

来源：互联网发布：java数组强制类型转换编辑：程序博客网时间：2024/04/28 20:30

import   java.util.Date;
import   java.text.SimpleDateFormat;
import   java.util.Calendar;
import   java.text.DateFormat;
public   class   test   {

          public   static   void   main(String   args[]){
                  Date   date=   new   Date();
                  String   dateStr   =   "";
                  String   weekStr   =   "";
                  Calendar   calendar   =   Calendar.getInstance();
                  int   week   =   calendar.get(Calendar.DAY_OF_WEEK)-1;
                  switch(week){
                          case   0:
                                  weekStr   =   "星期日";
                                  break;
                          case   1:
                                  weekStr   =   "星期一";
                                  break;
                          case   2:
                                  weekStr   =   "星期二";
                                  break;
                          case   3:
                                  weekStr   =   "星期三";
                                  break;
                          case   4:
                                  weekStr   =   "星期四";
                                  break;
                          case   5:
                                  weekStr   =   "星期五";
                                  break;
                          case   6:
                                  weekStr   =   "星期六";
                                  break;
                  }
                  Date   dateBegin   =   new   Date();
                  Date   dateEnd   =   new   Date();
                  DateFormat   shortDateFormat   =   DateFormat.getDateInstance(0);
                  dateStr   =   shortDateFormat.format(date);
                  dateBegin.setTime(date.getTime()-(long)(week)*24*60*60*1000);
                  String   dateBeginStr   =   shortDateFormat.format(dateBegin);
                  dateEnd.setTime(date.getTime()+(long)(7-week-1)*24*60*60*1000);
                  String   dateEndStr   =   shortDateFormat.format(dateEnd);
                  System.out.println("今天是当年的第"+calendar.get(Calendar.WEEK_OF_YEAR   )+"周");
                  System.out.println("今天是当月的"+calendar.get(calendar.DAY_OF_WEEK_IN_MONTH)+"周");
                  System.out.println("今天是"+weekStr);
                  System.out.println("本周的开始时间是"+dateBeginStr);
                  System.out.println("本周的结束时间是"+dateEndStr);
                  calendar.set(   Calendar.DAY_OF_WEEK,   1   );
                  System.out.println(   "本周的开始时间是"+(calendar.get(Calendar.MONTH)+1)+"月"   +   calendar.get(   Calendar.DATE   )+"日");
                  calendar.set(Calendar.DAY_OF_WEEK,7);
                  System.out.println(   "本周的开始结束时间是"+(calendar.get(Calendar.MONTH)+1)+"月"   +   calendar.get(   Calendar.DATE   )+"日");
          }
}