Java JapaneseDate minus(long, TemporalUnit)用法及代码示例

java.time.chrono.JapaneseDate类的minus()方法用于在从当前日语日期减去临时访问器单元的数量之后获取日语日期。

用法:

public JapaneseDate minus(long amountToAdd,
                          TemporalUnit unit)

参数：此方法将以下参数作为参数：

amountToSubstract:这是将从当前日语日期减去的时间单位的值。
unit:这是时间单位或计时单位的对象。

返回值：此方法从当前日语日期减去临时访问器单元的数量后返回日语日期。

下面是说明minus()方法的示例：

范例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); 
        } 
    } 
}

输出：

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

范例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); 
        } 
    } 
}

输出：

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

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

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 JapaneseDate minus(long, TemporalUnit) 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。