Java YearMonth plusMonths()用法及代碼示例

Java中YearMonth類的plusMonths()方法用於獲取此YearMonth的副本，其中添加了指定的月數。

用法:

public YearMonth plusMonths(long monthsToAdd)

參數：此方法接受monthsToAdd作為參數，該參數表示要添加到當前YearMonth對象的月份。可能是負麵的。

返回值：它基於此year-month返回添加了月份的YearMonth。

異常：如果結果超出支持的範圍，則此方法將引發DateTimeException。

以下示例程序旨在說明Java中YearMonth的plusMonths()方法：

程序1:

// Java program to demonstrate 
// YearMonth.plusMonths() method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // create YearMonth object 
        YearMonth yearmonth 
            = YearMonth.parse("2020-05"); 
  
        // apply plusMonths() method 
        // of YearMonth class 
        // Adding 5 months into May 2020 
        // will turn it into October 2020 
        YearMonth result = yearmonth.plusMonths(5); 
  
        // print results 
        System.out.println("Modified YearMonth:"
                           + result); 
    } 
}

輸出：

Modified YearMonth:2020-10

程序2:

// Java program to demonstrate 
// YearMonth.plusMonths() method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // create YearMonth object 
        YearMonth yearmonth 
            = YearMonth.parse("2019-05"); 
  
        // apply plusMonths() method 
        // of YearMonth class 
        // Adding 10 months into it will turn 
        // it to 3rd month of next year 
        YearMonth result 
            = yearmonth.plusMonths(10); 
  
        // print results 
        System.out.println("Modified YearMonth:"
                           + result); 
    } 
}

輸出：

Modified YearMonth:2020-03

參考文獻： https://docs.oracle.com/javase/10/docs/api/java/time/YearMonth.html#plusMonths(long)

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