Java YearMonth withYear()用法及代码示例

YearMonth类的withYear(int year)方法用于使用传递的Year来更改YearMonth对象的年份，此方法之后将返回更改后的YearMonth的副本。此实例是不可变的，不受此方法调用的影响。

用法:

public YearMonth withYear(int year)

参数：此方法接受月份作为参数，该年份是在从MIN_YEAR到MAX_YEAR的返回year-month中设置的年份。

返回值：此方法基于此year-month和所请求的年份返回YearMonth。

异常：如果年份值无效，则此方法引发DateTimeException。

以下示例程序旨在说明withYear()方法：
示例1:

// Java program to demonstrate 
// YearMonth.withYear() method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create a YearMonth object 
        YearMonth yr 
            = YearMonth.of(2019, 12); 
  
        // print instance 
        System.out.println("YearMonth before"
                           + " applying method: "
                           + yr); 
  
        // apply withYear method of YearMonth class 
        YearMonth updatedlocal = yr.withYear(2023); 
  
        // print instance 
        System.out.println("YearMonth after"
                           + " applying method: "
                           + updatedlocal); 
    } 
}

输出：

YearMonth before applying method: 2019-12
YearMonth after applying method: 2023-12

示例2:

// Java program to demonstrate 
// YearMonth.withYear() method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create a YearMonth object 
        YearMonth yr 
            = YearMonth.of(2022, 7); 
  
        // print instance 
        System.out.println("YearMonth before"
                           + " applying method: "
                           + yr); 
  
        // apply withYear method of YearMonth class 
        YearMonth updatedlocal = yr.withYear(1992); 
  
        // print instance 
        System.out.println("YearMonth after"
                           + " applying method: "
                           + updatedlocal); 
    } 
}

输出：

YearMonth before applying method: 2022-07
YearMonth after applying method: 1992-07

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

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注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 YearMonth withYear() 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。