Java Programming

To get the number of rows returned by a MySQL query, I do this:

public static void main(String[] args) throws Exception
    {
        Class.forName("com.mysql.jdbc.Driver").newInstance();
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement statement = connection.createStatement();
        String query = "SELECT * FROM users";
        ResultSet rs = statement.executeQuery(query);

        int number = statement.getFetchSize();
        connection.close();
        System.out.print(number);
    }

which returns 0 even though I have 7 users. What am I doing wrong?