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📜  Java中的 LocalDateTime plusWeeks() 方法及示例

📅  最后修改于: 2022-05-13 01:55:20.811000             🧑  作者: Mango

Java中的 LocalDateTime plusWeeks() 方法及示例

LocalDateTime 类plusWeeks()方法用于返回此日期时间的副本,其中添加了指定的周数。

语法

public LocalDateTime plusWeeks(long weeks)

参数:它接受单个参数,指定要添加的周数,可能为负数。

返回值:此方法基于此日期时间返回一个LocalDateTime并添加周数。

异常:如果结果超出支持的周数范围,程序会抛出DateTimeException

下面的程序说明了Java中的 LocalDateTime.plusWeeks() 方法:

程序 1

Java
// Program to illustrate the plusWeeks() method
 
import java.util.*;
import java.time.*;
 
public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T10:15:30");
 
        System.out.println("LocalDateTime with 15 weeks added: "
                           + dt1.plusWeeks(15));
    }
}


Java
// Program to illustrate the plusWeeks() method
 
import java.util.*;
import java.time.*;
 
public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T08:15:30");
 
        System.out.println("LocalDateTime with -2 weeks added: "
                           + dt1.plusWeeks(-2));
    }
}


输出:
LocalDateTime with 15 weeks added: 2018-04-26T10:15:30

方案二

Java

// Program to illustrate the plusWeeks() method
 
import java.util.*;
import java.time.*;
 
public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T08:15:30");
 
        System.out.println("LocalDateTime with -2 weeks added: "
                           + dt1.plusWeeks(-2));
    }
}
输出:
LocalDateTime with -2 weeks added: 2017-12-28T08:15:30

参考:https: Java/time/LocalDateTime.html#plusWeeks(long)