How to generate a Date from just Month and Year in Java?

Question

I need to generate a new Date object for credit card expiration date, I only have a month and a year, how can I generate a Date based on those two? I need the easiest way possible. I was reading some other answers on here, but they all seem too sophisticated.

Answer 1

You could use java.util.Calendar:

Calendar calendar = Calendar.getInstance(); calendar.clear(); calendar.set(Calendar.MONTH, month); calendar.set(Calendar.YEAR, year); Date date = calendar.getTime(); 

Answer 2

java.time

Using java.time framework built into Java 8

import java.time.YearMonth;  int year = 2015; int month = 12; YearMonth.of(year,month); // 2015-12 

from String

YearMonth.parse("2015-12"); // 2015-12 

with custom DateTimeFormatter

import java.time.format.DateTimeFormatter;  DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM yyyy"); YearMonth.parse("12 2015", formatter); // 2015-12 

Conversions To convert YearMonth to more standard date representation which is LocalDate.

LocalDate startMonth = date.atDay(1); //2015-12-01 LocalDate endMonth = date.atEndOfMonth(); //2015-12-31