Java JapaneseDate minus(long, TemporalUnit)用法及代碼示例

java.time.chrono.JapaneseDate類的minus()方法用於在從當前日語日期減去臨時訪問器單元的數量之後獲取日語日期。

用法:

public JapaneseDate minus(long amountToAdd,
                          TemporalUnit unit)

參數：此方法將以下參數作為參數：

amountToSubstract:這是將從當前日語日期減去的時間單位的值。
unit:這是時間單位或計時單位的對象。

返回值：此方法從當前日語日期減去臨時訪問器單元的數量後返回日語日期。

下麵是說明minus()方法的示例：

範例1：

Java

// Java program to demonstrate minus() method 
  
import java.util.*; 
import java.io.*; 
import java.time.*; 
import java.time.chrono.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
        try { 
            // Creating and initializing 
            // JapaneseDate Object 
            JapaneseDate hidate 
                = JapaneseDate.now(); 
  
            // Display the result 
            System.out.println("old japanese date:"
                               + hidate); 
  
            // Substracting japanese date 
            // by using minus() method 
            JapaneseDate newdate 
                = hidate.minus( 
                    22, ChronoUnit.DAYS); 
  
            // Display the result 
            System.out.println("new japanese date:"
                               + newdate); 
        } 
        catch (DateTimeException e) { 
            System.out.println("passed parameter can"
                               + " not form a date"); 
            System.out.println("Exception thrown:"
                               + e); 
        } 
    } 
}

輸出：

old japanese date:Japanese Heisei 32-03-23
new japanese date:Japanese Heisei 32-03-01

範例2：

Java

// Java program to demonstrate minus() method 
  
import java.util.*; 
import java.io.*; 
import java.time.*; 
import java.time.chrono.*; 
import java.time.temporal.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
        try { 
            // Creating and initializing 
            // JapaneseDate Object 
            JapaneseDate hidate 
                = JapaneseDate.now(); 
  
            // Display the result 
            System.out.println("old japanese date:"
                               + hidate); 
  
            // Substracting japanese date 
            // by using minus() method 
            JapaneseDate newdate 
                = hidate.minus( 
                    4, ChronoUnit.DECADES); 
  
            // Display the result 
            System.out.println("new japanese date:"
                               + newdate); 
        } 
        catch (DateTimeException e) { 
            System.out.println("passed parameter can"
                               + " not form a date"); 
            System.out.println("Exception thrown:"
                               + e); 
        } 
    } 
}

輸出：

old japanese date:Japanese Heisei 32-03-23
new japanese date:Japanese Showa 55-03-23

參考： https://docs.oracle.com/javase/9/docs/api/java/time/chrono/JapaneseDate.html#minus-long-java.time.temporal.TemporalUnit-

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 JapaneseDate minus(long, TemporalUnit) method 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。