Java DayOfWeek getValue()用法及代码示例

java.time.DayOfWeek的getValue()方法是Java中的内置函数，它返回分配给一周中7天(即星期一，星期二，星期三，星期三，星期四，星期五，星期六和星期日)的整数值。 int值遵循ISO-8601标准，从1(星期一)到7(星期日)。

方法声明：

public int getValue()

用法:

int val = DayOfWeekObject.getValue()

参数：此方法不接受任何参数。

返回值：该函数返回星期几的int值，例如，星期一为1，星期二为2，依此类推。

以下示例程序旨在说明上述方法：
示例1:

// Java Program Demonstrate getValue() 
// method of DayOfWeek 
import java.time.*; 
import java.time.DayOfWeek; 
  
class DayOfWeekExample { 
    public static void main(String[] args) 
    { 
        // Set a local date whose day is found 
        LocalDate localDate 
            = LocalDate.of(1947, 
                           Month.AUGUST, 15); 
  
        // Find the day from the local date 
        DayOfWeek dayOfWeek 
            = DayOfWeek.from(localDate); 
  
        // Printing the day of the week 
        // and its Int value 
        System.out.println("Day of the Week on"
                           + " 15th August 1947 - "
                           + dayOfWeek.name()); 
  
        int val = dayOfWeek.getValue(); 
  
        System.out.println("Int Value of "
                           + dayOfWeek.name() 
                           + " - " + val); 
    } 
}

输出：

Day of the Week on 15th August 1947 - FRIDAY
Int Value of FRIDAY - 5

示例2:

// Java Program Demonstrate getValue() 
// method of DayOfWeek 
import java.time.*; 
import java.time.DayOfWeek; 
  
class DayOfWeekExample { 
    public static void main(String[] args) 
    { 
        // Set a local date whose day is found 
        LocalDate localDate 
            = LocalDate.of(2015, 
                           Month.JULY, 13); 
  
        // Find the day from the local date 
        DayOfWeek dayOfWeek 
            = DayOfWeek.from(localDate); 
  
        // Printing the day of the week 
        // and its Int value 
        System.out.println("Day of the Week on"
                           + " 13th July 2015 - "
                           + dayOfWeek.name()); 
  
        int val = dayOfWeek.getValue(); 
  
        System.out.println("Int Value of "
                           + dayOfWeek.name() 
                           + " - " + val); 
    } 
}

输出：

Day of the Week on 13th July 2015 - MONDAY
Int Value of MONDAY - 1

参考： https://docs.oracle.com/javase/8/docs/api/java/time/DayOfWeek.html#getValue–

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注：本文由纯净天空筛选整理自rupesh_rao大神的英文原创作品 DayOfWeek getValue() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。