Java YearMonth minusYears()用法及代碼示例

Java中YearMonth類的minusYears()方法用於返回該YearMonth的副本，其中減去指定的年數。

用法:

public YearMonth minusYears(long yearsToSubtract)

參數：此方法接受yearsToSubtract作為參數，代表要減去的年份。可能是負麵的。

返回值：它基於此year-month返回減去年份的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minusYears()方法：

程序1:

// Java program to demonstrate 
// YearMonth.minusYears() 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"); 
        // It is May 2020 
  
        // apply minusYears() method 
        // of YearMonth class 
        YearMonth result 
            = yearmonth.minusYears(5); 
        // Subtracting 5 years will turn it 
        // into May 2015 
  
        // print year and month both 
        System.out.println( 
            "Modified YearMonth:"
            + result); 
    } 
}

輸出：

Modified YearMonth:2015-05

程序2:

// Java program to demonstrate 
// YearMonth.minusYears() method 
  
import java.time.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
        // create YearMonth object 
        YearMonth yearmonth 
            = YearMonth.of(2019, 10); 
  
        // apply minusYears() method 
        // of YearMonth class 
        YearMonth result 
            = yearmonth.minusYears(10); 
        // Subtracting 10 years will 
        // turn it into October 2009 
  
        // print only year 
        System.out.println( 
            "Modified Year:"
            + result.get(ChronoField.YEAR)); 
    } 
}

輸出：

Modified Year:2009

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

相關用法

注：本文由純淨天空篩選整理自pp_pankaj大神的英文原創作品 YearMonth minusYears() in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。