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📜  Java中的 OffsetDateTime minusWeeks() 方法及示例

📅  最后修改于: 2022-05-13 01:55:23.923000             🧑  作者: Mango

Java中的 OffsetDateTime minusWeeks() 方法及示例

Java中 OffsetDateTime 类的minusWeeks()方法返回此 OffsetDateTime 的副本,其中从解析的日期和时间中减去指定的周数。

句法:

public OffsetDateTime minusWeeks(long weeks)

参数:此方法接受一个参数weeks ,它指定要从解析日期中减去的周数。它也可以是负数,在这种情况下,它会增加周数。

返回值:它基于此日期时间返回一个 OffsetDateTime,减去周数且不为空。

异常:程序在超出支持的数据和时间范围时抛出DateTimeException

下面的程序说明了minusWeeks()方法:

方案一:

// Java program to demonstrate the minusWeeks() method
  
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1
            = OffsetDateTime
                  .parse("2018-12-12T13:30:30+05:00");
  
        // Prints dates
        System.out.println("Date1: " + date1);
  
        // Subtracts the number of weeks
        System.out.println("Date1 after subtracting weeks: "
                           + date1.minusWeeks(-120));
    }
}
输出:
Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting weeks: 2021-03-31T13:30:30+05:00

方案二:

// Java program to demonstrate the minusWeeks() method
  
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // Parses the date1
        OffsetDateTime date1
            = OffsetDateTime
                  .parse("2018-12-12T13:30:30+05:00");
  
        // Prints dates
        System.out.println("Date1: " + date1);
  
        // Subtracts the number of weeks
        System.out.println("Date1 after subtracting weeks: "
                           + date1.minusWeeks(140));
    }
}
输出:
Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting weeks: 2016-04-06T13:30:30+05:00

参考:https: Java/time/OffsetDateTime.html#minusWeeks(long)