Java YearMonth minus(TemporalAmount)用法及代码示例

从Yearyearth对象减去指定的TemporalAmount数量后，使用YearMonth类的minus(TemporalAmount)方法返回Yearyear的副本。如果无法从YearMonth中减去指定的单位，则会引发异常。传递的TemporalAmount是根据Period对象创建的。此实例是不可变的，不受此方法调用的影响。

用法:

public YearMonth minus(TemporalAmount amountToSubtract)

参数：此方法仅接受一个参数TemporalAmount，该参数表示从YearMonth对象减去的数量。

返回值：此方法基于此YearMonth返回YearMonth，减去指定的数量。

异常：此方法引发以下异常：

DateTimeException-如果无法进行减法，则抛出此异常。
ArithmeticException-如果发生数字溢出，则抛出此异常。

以下示例程序旨在说明减号(TemporalAmount amountToSubtract)方法：

示例1:

// Java program to demonstrate 
// YearMonth.minus(TemporalAmount amountToSubtract) method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // create a YearMonth object 
        YearMonth thisYearMonth = YearMonth.of(2019, 11); 
  
        // print instance 
        System.out.println("YearMonth :"
                           + thisYearMonth); 
  
        // create temporalAmount object from period class 
        // passing temporalAmount to 
        // minus() method 
        YearMonth value 
            = thisYearMonth.minus( 
                Period.ofYears(22)); 
  
        // print result 
        System.out.println("Value after Subtraction: "
                           + value); 
    } 
}

输出：

YearMonth :2019-11
Value after Subtraction: 1997-11

示例2:

// Java program to demonstrate 
// YearMonth.minus(TemporalAmount amountToSubtract) method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // create a YearMonth object 
        YearMonth thisYearMonth = YearMonth.of(2022, 11); 
  
        // print instance 
        System.out.println("YearMonth :"
                           + thisYearMonth); 
  
        // create temporalAmount object from period class 
        // passing temporalAmount to 
        // minus() method 
        YearMonth value 
            = thisYearMonth.minus( 
                Period.ofMonths(20)); 
  
        // print result 
        System.out.println("Value after Subtraction: "
                           + value); 
    } 
}

输出：

YearMonth :2022-11
Value after Subtraction: 2021-03

参考文献：
https://docs.oracle.com/javase/10/docs/api/java/time/YearMonth.html#minus(java.time.temporal.TemporalAmount)

相关用法

注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 YearMonth minus(TemporalAmount) method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。