Java

Validate a ULID

See more ULID/UUID Examples

Checks to see if a ULID is valid.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.DateTime;

public class ChilkatExample {

    public static void main(String[] args) {
        DateTime dt = new DateTime();

        // A ULID must be exactly 26 chars in length,
        // and is composed of the following chars: 0123456789ABCDEFGHJKMNPQRSTVWXYZ
        // Note: The ULID alphabet excludes the letters I, L, O, and U

        // Here's a valid ULID
        String ulid = "01GRGCH4J88RECEN4D4VK4F629";
        boolean valid;
        try {
            dt.ulidValidate(ulid);
            valid = true;
        } catch (ChilkatException e) {
            valid = false;
        }
        System.out.println("valid: " + valid);

        // Here's an invalid ULID
        ulid = "71GRGxx4Jr8RECEN4D4VK4F62!";
        try {
            dt.ulidValidate(ulid);
            valid = true;
        } catch (ChilkatException e) {
            valid = false;
        }
        System.out.println("valid: " + valid);
    }
}