YearMonth minusMonths() method in Java with Examples

The minusMonths() method of YearMonth class in Java is used to return a copy of this YearMonth with the specified number of months subtracted.

Syntax:

public YearMonth minusMonths(
        long monthsToSubtract)

Parameter: This method accepts monthsToSubtract as parameters which represents months to subtract. It may be negative.

Return Value: It returns a YearMonth based on this year-month with the months subtracted.

Exceptions: This method throws DateTimeException if the result exceeds the supported range.

Below programs illustrate the minusMonths() method of YearMonth in Java:



Program 1:

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// Java program to demonstrate
// YearMonth.minusMonths() 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 minusMonths() method
        // of YearMonth class
        YearMonth result
            = yearmonth.minusMonths(2);
        // It subtracts 2 months from May 2020
        // So it will be March 2020
  
        // print year and month both
        System.out.println("Modified YearMonth: "
                           + result);
    }
}

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Output:

Modified YearMonth: 2020-03

Program 2:

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// Java program to demonstrate
// YearMonth.minusMonths() method
  
import java.time.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] args)
    {
        // create YearMonth object
        YearMonth yearmonth
            = YearMonth.parse("2019-10");
  
        // apply minusMonths() method
        // of YearMonth class
        YearMonth result
            = yearmonth.minusMonths(10);
        // Subtrating 10 months will turn it into
        // December of 2018 (previous year)
  
        // print year and month both
        System.out.println(
            "Modified YearMonth: "
            + result);
    }
}

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Output:

Modified YearMonth: 2018-12

References: https://docs.oracle.com/javase/10/docs/api/java/time/YearMonth.html#minusMonths(long)

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