How to Validate a Date's Legitimacy in Java?

How to Verify Date Validity in Java

Despite the discontinuation of the traditional Date object creation method, Java provides a solution for validating the legitimacy of dates using a lenient calendar.

Question: How to determine whether a date (specified as day, month, and year) is legitimate? For instance, 2008-02-31 would be invalid.

Answer:

The critical step is disabling the lenient setting of the date formatter:

df.setLenient(false);

This simple adjustment is sufficient for basic date validation scenarios. If you require more robust functionality or prefer alternative libraries, refer to the answer provided by "tardate":

public static boolean isDateValid(String date) {
    try {
        DateFormat df = new SimpleDateFormat(DATE_FORMAT);
        df.setLenient(false);
        df.parse(date);
        return true;
    } catch (ParseException e) {
        return false;
    }
}

The above is the detailed content of How to Validate a Date's Legitimacy in Java?. For more information, please follow other related articles on the PHP Chinese website!