Java DayOfWeek values()方法及示例

java.time.DayOfWeek 的 values() 方法是Java中的一个内置函数，它返回一个包含一周内各天的数组，如MONDAY、TUESDAY等，按照它们被声明的顺序。

方法声明 。

public static DayOfWeek[] values()

语法

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，该数组包含了按声明顺序排列的一周的日子。

以下程序说明了上述方法：

程序1 :

// 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

程序2

// 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

参考资料: https://docs.oracle.com/javase/8/docs/api/java/time/DayOfWeek.html#values-