当前位置: 代码迷 >> J2SE >> 怎么使用java判断String类型的yyyyMMdd是周五还是月末
  详细解决方案

怎么使用java判断String类型的yyyyMMdd是周五还是月末

热度:371   发布时间:2016-04-24 01:35:09.0
如何使用java判断String类型的yyyyMMdd是周五还是月末
月末指的是每个月的最后一天,如果正好是在周六、周日,则往前顺延一天,


------解决方案--------------------
String sdate = "20120105";
DateFormat df = new SimpleDateFormat("yyyyMMdd");
Date date = df.parse(sdate);
Calendar cal = Calendar.getInstance();
cal.setTime(date);
String[] colname = {
"日", "一", "二", "三", "四", "五", "六"
};
int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);
System.out.println("今天是星期"+colname[dayOfWeek-1]);
int lastDayOfMonth = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
int nowDay = cal.get(Calendar.DAY_OF_MONTH);
if(nowDay == lastDayOfMonth){
System.out.println("月末");
}
------解决方案--------------------
请参考下以下代码
Java code
        String date="20110127";        Calendar calendar=Calendar.getInstance();        calendar.setTime(new SimpleDateFormat("yyyyMMdd").parse(date));        int dayOfWeek=calendar.get(Calendar.DAY_OF_WEEK);        int dayOfMonth=calendar.get(Calendar.DAY_OF_MONTH);        System.out.println(dayOfWeek);        System.out.println(dayOfMonth);        int friday=5;        int endMonth=calendar.getActualMaximum(Calendar.DAY_OF_MONTH);        System.out.println(friday);        System.out.println(endMonth);                if(friday==dayOfWeek){            System.out.println("今天星期五!");            }else{            System.out.println("今天不是星期五,明天接着上班!");            }        if(endMonth==dayOfMonth){            System.out.println("今天月末!");            }else{            System.out.println("今天还无到月末!");            }
  相关解决方案