Java 是否是周末


/**

* 是否是周末

* @return

*/

public static String idWeek(String datetime) {

final String dayNames[] = { "true", "星期一", "星期二", "星期三", "星期四", "星期五","true" };

SimpleDateFormat sdfInput = new SimpleDateFormat("yyyy-MM-dd");

Calendar calendar = Calendar.getInstance();

Date date = new Date();

try {

date = sdfInput.parse(datetime);

} catch (Exception e) {

e.printStackTrace();

}

calendar.setTime(date);

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

return dayNames[dayOfWeek - 1];

}