Java tutorial
import java.text.ParseException; import java.text.SimpleDateFormat; public class Main { public static boolean isValidDate(String inDate) { SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); dateFormat.setLenient(false); try { dateFormat.parse(inDate.trim()); } catch (ParseException pe) { return false; } return true; } public static void main(String[] args) { System.out.println(isValidDate("2004-02-29")); System.out.println(isValidDate("2005-02-29")); } } /* true false */