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)