Java WeekFields weekOfMonth()用法及代码示例

WeekFields类的weekOfMonth()方法用于返回字段，以基于此WeekFields访问每月的星期。例如：

如果每月的第一天是星期一，则第一周从第一天开始，没有零周
如果每月的第二天是星期一，则第一周在第二天开始，第一天在零周
如果每月的第4天是星期一，则第1周从第4周开始，第1至第3周在零周开始
如果每月的第5天是星期一，则第二周从第5周开始，而第1至第4周在第一周

该字段可用于任何日历系统。

用法:

public TemporalField weekOfMonth()

参数：此方法不接受任何内容。

返回值：此方法返回一个提供对week-based-year的访问权限的字段，而不是null。

以下示例程序旨在说明WeekFields.weekOfMonth()方法：
程序1:

// Java program to demonstrate 
// WeekFields.weekOfMonth() method 
  
import java.time.DayOfWeek; 
import java.time.LocalDate; 
import java.time.temporal.TemporalField; 
import java.time.temporal.WeekFields; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create WeekFields 
        WeekFields weekFields 
            = WeekFields.of(DayOfWeek.MONDAY, 1); 
  
        // apply weekOfMonth() 
        TemporalField weekOfMonth 
            = weekFields.weekOfMonth(); 
  
        // create a LocalDate 
        LocalDate day 
            = LocalDate.of(2021, 12, 21); 
  
        // get week of month for localdate 
        int wom = day.get(weekOfMonth); 
  
        // print results 
        System.out.println("week of month for "
                           + day + ":" + wom); 
    } 
}

输出：

week of month for 2021-12-21:4

程序2:

// Java program to demonstrate 
// WeekFields.weekOfMonth() method 
  
import java.time.DayOfWeek; 
import java.time.LocalDate; 
import java.time.temporal.TemporalField; 
import java.time.temporal.WeekFields; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create WeekFields 
        WeekFields weekFields 
            = WeekFields.of(DayOfWeek.SUNDAY, 1); 
  
        // apply weekOfMonth() 
        TemporalField weekOfMonth 
            = weekFields.weekOfMonth(); 
  
        // create a LocalDate 
        LocalDate day = LocalDate.of(2020, 01, 10); 
  
        // get week of month for localDate 
        int wom = day.get(weekOfMonth); 
  
        // print results 
        System.out.println("week of month for "
                           + day + ":" + wom); 
    } 
}

输出：

week of month for 2020-01-10:2

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

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注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 WeekFields weekOfMonth() 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。