Java中的 DayOfWeek values() 方法及示例

Java .time.DayOfWeek的values()方法是Java中的一个内置函数，它按照声明的顺序返回一个包含星期几的数组，例如MONDAY、TUESDAY 等。

方法声明：

public static DayOfWeek[] values()

句法：

DayOfWeek week[] =  DayOfWeek.values()

参数：此方法不接受任何参数。

返回值：该函数返回一个数组，其中包含按声明顺序排列的星期几。

下面的程序说明了上述方法：
方案一：

// Java Program Demonstrate values()
// method of DayOfWeek
import java.time.DayOfWeek;
  
class DayOfWeekExample {
    public static void main(String[] args)
    {
        // Initializing an array containing
        // all the days of the Week
        DayOfWeek week[] = DayOfWeek.values();
  
        // Printing the days of the Week
        for (DayOfWeek c : week)
            System.out.println(c);
    }
}

输出：

MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
SATURDAY
SUNDAY

方案二：

// Java Program Demonstrate values()
// method of DayOfWeek
import java.time.DayOfWeek;
  
class DayOfWeekExample {
    public static void main(String[] args)
    {
        // Initializing an array containing
        // all the days of the Week
        DayOfWeek week[] = DayOfWeek.values();
  
        // Printing the days of the Week
        for (int i = 0; i < week.length; i++)
            System.out.println(week[i]
                               + " has int value - "
                               + (i + 1));
    }
}

输出：

MONDAY has int value - 1
TUESDAY has int value - 2
WEDNESDAY has int value - 3
THURSDAY has int value - 4
FRIDAY has int value - 5
SATURDAY has int value - 6
SUNDAY has int value - 7

参考： https: Java/time/DayOfWeek.html#values–