java判断日期与星期详解编程语言

calendar.setTime(date); calendar.add(calendar.DATE,i);//把日期往后增加一天.整数往后推,负数往前移动 date=calendar.getTime(); //这个时间就是日期往后推一天的结果 // System.out.println(date); SimpleDateFormat sFormat=new SimpleDateFormat("yyyyMMdd"); if(getWeekOfDate(date).equals("星期六") ){ --dayu; }else if(getWeekOfDate(date).equals("星期日")){ --dayu; }else{ System.out.println(sFormat.format(date)); public static String getWeekOfDate(Date dt) { String[] weekDays = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"}; Calendar cal = Calendar.getInstance(); cal.setTime(dt); int w = cal.get(Calendar.DAY_OF_WEEK) - 1; if (w 0) w = 0; return weekDays[w];

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