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Java Date Time - YearMonth.format() Examples

[Last Updated: Nov 8, 2025]

Java Date Time Java Java API 

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Class:

java.time.YearMonth

java.lang.Objectjava.lang.Objectjava.time.YearMonthjava.time.YearMonthjava.time.temporal.TemporalTemporaljava.time.temporal.TemporalAdjusterTemporalAdjusterjava.lang.ComparableComparablejava.io.SerializableSerializableLogicBig

Method:

public String format(DateTimeFormatter formatter)

Formats this year-month using the specified formatter.


Examples


package com.logicbig.example.yearmonth;

import java.time.YearMonth;
import java.time.format.DateTimeFormatter;

public class FormatExample {

    public static void main(String... args) {
        YearMonth y = YearMonth.of(2010, 11);
        System.out.println(y);

        format(y, "MM/yyyy");
        format(y, "MMM/yyyy");
        format(y, "MMMM/yyyy");
        format(y, "y-M");
    }

    private static void format(YearMonth y, String pattern) {
        DateTimeFormatter f = DateTimeFormatter.ofPattern(pattern);
        String s = y.format(f);
        System.out.printf("%15s > %s%n", pattern, s);
    }
}

Output

2010-11
        MM/yyyy > 11/2010
       MMM/yyyy > Nov/2010
      MMMM/yyyy > November/2010
            y-M > 2010-11

See Also