Java DayOfWeek of()用法及代碼示例

java.time.DayOfWeek的of()方法是Java中的內置函數，它從int值返回DayOfWeek的實例。 int值的範圍是1(星期一)至7(星期日)。

方法聲明：

public static DayOfWeek of(int dayOfWeek)

用法:

DayOfWeek dayOfWeekObject = DayOfWeek.of(int dayOfWeek)

參數：此方法將dayOfWeek作為參數，其中：

dayOfWeek–是從1(星期一)到7(星期日)的int值。
dayOfWeekObject–是DayOfWeek對象的實例。

返回值：該函數返回DayOfWeek對象的實例。

以下示例程序旨在說明上述方法：
示例1:

// Java Program Demonstrate of() 
// method of DayOfWeek 
import java.time.DayOfWeek; 
  
class DayOfWeekExample { 
    public static void main(String[] args) 
    { 
        // Getting an instance of DayOfWeek from int value 
        DayOfWeek dayOfWeek = DayOfWeek.of(4); 
  
        // Printing the day of the week 
        // and its Int value 
        System.out.println("Day of the Week - "
                           + dayOfWeek.name()); 
        System.out.println("Int Value of "
                           + dayOfWeek.name() + " - "
                           + dayOfWeek.getValue()); 
    } 
}

輸出：

Day of the Week - THURSDAY
Int Value of THURSDAY - 4

示例2:

// Java Program Demonstrate of() 
// method of DayOfWeek 
import java.time.DayOfWeek; 
  
class DayOfWeekExample { 
    public static void main(String[] args) 
    { 
        // Getting an instance of DayOfWeek from int value 
        DayOfWeek dayOfWeek = DayOfWeek.of(7); 
  
        // Printing the day of the week 
        // and its Int value 
        System.out.println("Day of the Week - "
                           + dayOfWeek.name()); 
        System.out.println("Int Value of "
                           + dayOfWeek.name() + " - "
                           + dayOfWeek.getValue()); 
    } 
}

輸出：

Day of the Week - SUNDAY
Int Value of SUNDAY - 7

參考： https://docs.oracle.com/javase/8/docs/api/java/time/DayOfWeek.html#of-int-

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注：本文由純淨天空篩選整理自rupesh_rao大神的英文原創作品 DayOfWeek of() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。