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📜  Java中的 OffsetDateTime minusDays() 方法及示例

📅  最后修改于: 2022-05-13 01:54:33.854000             🧑  作者: Mango

Java中的 OffsetDateTime minusDays() 方法及示例

Java中 OffsetDateTime 类的minusDays()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天数。

句法:

public OffsetDateTime minusDays(long days)

参数:此方法接受单个参数days ,它指定要从解析日期中减去的天数。它也可以是负数,在这种情况下,它会增加天数。

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

异常:当超出支持的数据和时间范围时,程序会抛出DateTimeException

下面的程序说明了minusDays()方法:

方案一:

Java
// Java program to demonstrate the minusDays() 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 days
        System.out.println("Date1 after subtracting days: "
                           + date1.minusDays(140));
    }
}


Java
// Java program to demonstrate the minusDays() 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 days
        System.out.println("Date1 after subtracting days: "
                           + date1.minusDays(-120));
    }
}


输出:
Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting days: 2018-07-25T13:30:30+05:00

方案二

Java

// Java program to demonstrate the minusDays() 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 days
        System.out.println("Date1 after subtracting days: "
                           + date1.minusDays(-120));
    }
}
输出:
Date1: 2018-12-12T13:30:30+05:00
Date1 after subtracting days: 2019-04-11T13:30:30+05:00

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