JapaneseDate minus(long, TemporalUnit) method in Java with Examples

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: 

• amountToSubtract: which is the value of temporal unit which is going to subtracted 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);

            // Subtracting 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);

            // Subtracting 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-