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YearMonth format() method in Java

  • Last Updated : 04 Sep, 2021

The format() method of YearMonth class in Java is used to format this YearMonth instance according to a specified DateTimeFormatter for year-month passed as parameter to this method.
 

Syntax

public String format(DateTimeFormatter formatter)

Parameter: This method accepts a single parameter formatter which is the DateTimeFormatter according to which this YearMonth instance will be formatted.
Return Value: It returns the value of this YearMonth as a string after formatting it according to the specified formatter.
Below programs illustrate the format() method of YearMonth in Java: 
Program 1:  

Java




// Program to illustrate the format() method
 
import java.util.*;
import java.time.*;
import java.time.format.DateTimeFormatter;
 
public class GfG {
    public static void main(String[] args)
    {
 
        // Create a YearMonth object
        YearMonth thisYearMonth = YearMonth.of(2017, 8);
 
        // Create a DateTimeFormatter string
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yy/MM");
 
        // Format this year-month
        System.out.println(thisYearMonth.format(formatter));
    }
}
Output: 
17/08

 

Program 2

Java




// Program to illustrate the format() method
 
import java.util.*;
import java.time.*;
import java.time.format.DateTimeFormatter;
 
public class GfG {
    public static void main(String[] args)
    {
 
        // Create a YearMonth object
        YearMonth thisYearMonth = YearMonth.of(2018, 5);
 
        // Create a DateTimeFormatter string
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM/yy");
 
        // Format this year-month
        System.out.println(thisYearMonth.format(formatter));
    }
}
Output: 
05/18

 

Reference: https://docs.oracle.com/javase/8/docs/api/java/time/YearMonth.html#format-java.time.format.DateTimeFormatter-


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