Java中判断某一天是否是周末的方法

 1 Calendar cal = Calendar.getInstance();
 2 Date date = new Date();
 3 cal.setTime(date);
 4 if (cal.get(Calendar.DAY_OF_WEEK)==Calendar.SATURDAY||cal.get(Calendar.DAY_OF_WEEK)==Calendar.SUNDAY)
 5 {
 6     System.out.println("是周末");
 7 }
 8  else
 9 {
10     System.out.println("不是周末");
11 }