取得星期

//取得星期幾的整數值

int dayOfWeek = cal.get(Calendar.DAY_OF_WEEK);

//判斷取得的數值等於星期幾

switch(dayOfWeek){

case Calendar.SUNDAY:

System.out.println("星期日");

break;

case Calendar.MONDAY:

System.out.println("星期一");

break;

case Calendar.TUESDAY:

System.out.println("星期二");

break;

case Calendar.WEDNESDAY:

System.out.println("星期三");

break;

case Calendar.THURSDAY:

System.out.println("星期四");

break;

case Calendar.FRIDAY:

System.out.println("星期五");

break;

case Calendar.SATURDAY:

System.out.println("星期六");

}