'List of "Year-Month" from Current Year month to Jan-2021 in Java

I have a business requirement to write a service which returns the list of Year months (01-2021,02-2021,....) starting from 01-2021 to the current year month (current : 02-2022).

Can anyone suggest me the approach that I can take to solve this in Java 8

O/P : 01-2021, 02-2021, 03-2021, 04-2021 , so on , 02-2022.

javadatetimejava-8jodatime


Solution 1:[1]

The java.time package has a YearMonth class (documentation) ideal for this use case:

for (YearMonth ym = YearMonth.of(2021, Month.JANUARY); // or ...of(2021, 1)
     !ym.isAfter(YearMonth.now());
     ym = ym.plusMonths(1))
{
    System.out.printf("%Tm-%1$TY\n", ym);
}

Solution 2:[2]

import java.time.*;
import java.time.format.DateTimeFormatter;
public class YearMonth {
    public static void getYearMonths() {

        YearMonth nextMonth = YearMonth.now().plusMonths(1);
        YearMonth yearMonth = YearMonth.of(2021, 01);
 
        while (nextMonth.isAfter(yearMonth)) {
        // Create a DateTimeFormatter string
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM-yyyy");
        
        // Format this year-month
        System.out.println(yearMonth.format(formatter));
        yearMonth = yearMonth.plusMonths(1);
        }
    }
}

Sources

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Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Geeth

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