java - 如何获得日期的工作日？

Question

当我有一个 Date 字符串数组时，我想从 Java Date 对象中获取星期几。

SimpleDateFormat  sourceDateformat = new SimpleDateFormat("yyyy-MM-dd");
public String[] temp_date;
public Int[] day = new Int[5];
Date[] d1= new Date[5];
Calendar[] cal= new Calendar[5]

  try {
     d1[i]= sourceDateformat.parse(temp_date[i].toString());
     cal[i].setTime(d1[i]);   // its not compiling this line..showing error on this line
     day[i]= cal[i].get(Calendar.DAY_OF_WEEK);      
    } 
 catch (ParseException e) {
        e.printStackTrace();
    }

有人知道这个问题的答案吗？

Answer 1

你可以这样得到 day-integer:

Calendar c = Calendar.getInstance();
c.setTime(yourdate); // yourdate is an object of type Date

int dayOfWeek = c.get(Calendar.DAY_OF_WEEK); // this will for example return 3 for tuesday

如果您需要输出为“Tue”而不是 3，无需通过日历，只需重新格式化字符串:new SimpleDateFormat("EE").format(date )(EE 意思是“星期几，短版”)

取自此处:How to determine day of week by passing specific date?