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)