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JapaneseDate minus(long, TemporalUnit) method in Java with Examples
  • Last Updated : 31 Mar, 2020

The minus() method of java.time.chrono.JapaneseDate class is used to get the Japanese date after subtracting an amount of temporal accessor unit from the current Japanese date.

Syntax:

public JapaneseDate minus(long amountToAdd,
                          TemporalUnit unit)

Parameter: This method takes the following argument as a parameter:

  • amountToSubstract: which is the value of temporal unit which is going to substracted from the current Japanese date.
  • unit: which is the object of temporal unit or chrono unit.

Return Value: This method returns the Japanese date after subtracting an amount of temporal accessor unit from current Japanese date.

Below are the examples to illustrate the minus() method:



Example 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);
        }
    }
}
Output:
old japanese date: Japanese Heisei 32-03-23
new japanese date: Japanese Heisei 32-03-01

Example 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);
        }
    }
}
Output:
old japanese date: Japanese Heisei 32-03-23
new japanese date: Japanese Showa 55-03-23

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

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