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将指定日期轉換為星期

  如題,将傳入的日期轉換為星期幾,轉換方法:

  public String getWeekDay(Calendar calendar) {

    String[] weeks =

{"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};

    int m =

calendar.get(Calendar.DAY_OF_WEEK)-1;

    if(m<0){

      m=6;

        }

    return

weeks[m];

    }

  

  demo: 轉換昨天為星期幾

  Calendar calendar =

Calendar.getInstance();

  calendar.add(Calendar.DATE, -1);

  //得到星期幾

  getWeekDay(calendar);

  注:剛開始寫部落格,還沒來得及看怎麼排版,界面太醜,望看客輕噴..

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