import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
 
public class Main {
    public static void main(String[] args) {
        String[] strDates = {"19800229", "19800228", "19820229", "19820228"};
        for (String strDate : strDates)
            try {
                System.out.printf("Parsing %s --> %s%n",
                        strDate,
                        LocalDate.parse(strDate, DateTimeFormatter.BASIC_ISO_DATE));
            } catch (DateTimeParseException e) {
                System.out.printf("Error: %s%n", e.getMessage());
            }
    }
}

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