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📜  Java中的 ZonedDateTime minusMonths() 方法及示例

📅  最后修改于: 2022-05-13 01:55:44.773000             🧑  作者: Mango

Java中的 ZonedDateTime minusMonths() 方法及示例

ZonedDateTime类的minusMonths()方法,用于减去此 ZonedDateTime 中的月数,并在减去后返回 ZonedDateTime 的副本。此实例是不可变的,不受此方法调用的影响。

句法:

public ZonedDateTime minusMonths(long months)

参数:此方法接受单个参数months ,表示要减去的月份,可以为负数。

返回值:此方法返回基于此日期时间减去月份的ZonedDateTime ,而不是 null。

异常:如果结果超出支持的日期范围,此方法将引发DateTimeException

下面的程序说明了 minusMonths() 方法:
方案一:

// Java program to demonstrate
// ZonedDateTime.minusMonths() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a ZonedDateTime object
        ZonedDateTime zoneddatetime
            = ZonedDateTime.parse(
                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");
  
        // print instance
        System.out.println("ZonedDateTime before"
                           + " subtracting months: "
                           + zoneddatetime);
  
        // subtract 10 months
        ZonedDateTime returnvalue
            = zoneddatetime.minusMonths(10);
  
        // print result
        System.out.println("ZonedDateTime after "
                           + " subtracting 10 months: "
                           + returnvalue);
    }
}
输出:

方案二:

// Java program to demonstrate
// ZonedDateTime.minusMonths() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a ZonedDateTime object
        ZonedDateTime zoneddatetime
            = ZonedDateTime.parse(
                "2018-10-25T23:12:31.123+02:00[Europe/Paris]");
  
        // print instance
        System.out.println("ZonedDateTime before"
                           + " subtracting months: "
                           + zoneddatetime);
  
        // subtract 2 months
        ZonedDateTime returnvalue
            = zoneddatetime.minusMonths(2);
  
        // print result
        System.out.println("ZonedDateTime after "
                           + " subtracting 2 months: "
                           + returnvalue);
    }
}
输出:

参考: https: Java/time/ZonedDateTime.html#minusMonths(long)