Java WeekFields getMinimalDaysInFirstWeek()用法及代碼示例

WeekFields類的getMinimalDaysInFirstWeek()方法用於返回一個月或一年的第一周的最少天數。例如，ISO-8601需要4天(超過半周)的時間才能出現在計算第一周之前。此方法返回一個月或一年中第一周的最小天數，從1到7。

用法:

public int getMinimalDaysInFirstWeek()

參數：此方法不接受任何內容。

返回值：此方法返回一個月或一年中第一周的最小天數，從1到7。

以下示例程序旨在說明WeekFields.getMinimalDaysInFirstWeek()方法：
程序1:

// Java program to demonstrate 
// WeekFields.getMinimalDaysInFirstWeek() method 
  
import java.time.DayOfWeek; 
import java.time.temporal.WeekFields; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create WeekFields 
        WeekFields weekFields 
            = WeekFields.of(DayOfWeek.SATURDAY, 2); 
  
        // apply getMinimalDaysInFirstWeek() 
        int noOfDays 
            = weekFields.getMinimalDaysInFirstWeek(); 
  
        // print results 
        System.out.println("Minimal number of days"
                           + " in the first week:"
                           + noOfDays); 
    } 
}

輸出：

Minimal number of days in the first week:2

程序2:

// Java program to demonstrate 
// WeekFields.getMinimalDaysInFirstWeek() method 
  
import java.time.temporal.WeekFields; 
import java.util.Locale; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        Locale locale = new Locale("EN", "INDIA"); 
  
        // create WeekFields 
        WeekFields weekFields 
            = WeekFields.of(locale); 
  
        // apply getMinimalDaysInFirstWeek() 
        int noOfDays 
            = weekFields.getMinimalDaysInFirstWeek(); 
  
        // print results 
        System.out.println("Minimal number of days"
                           + " in the first week:"
                           + noOfDays); 
    } 
}

輸出：

Minimal number of days in the first week:1

參考：https：//docs.oracle.com/javase/10/docs/api/java/time/temporal/WeekFields.html#getMinimalDaysInFirstWeek()

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