001    package ps6;
002    
003    /**
004     * Checked exception to indicate that there was an error
005     * in loading the Tiger database.
006     **/
007    public class InvalidDatabaseException extends Exception {
008        public static final long serialVersionUID = 4534;
009        public InvalidDatabaseException() {
010            super();
011        }
012        public InvalidDatabaseException (String dbname) {
013            super (dbname);
014        }
015        public InvalidDatabaseException (String dbname, Throwable cause) {
016            super(dbname, cause);
017        }
018    }