class DBConfig {

private static final String DRIVER_CLASS_NAME = "com.mysql.jdbc.Driver";
private static final String CONN_STRING = "jdbc:mysql://localhost:3306/demo";
private static final String USER = "root";
private static final String PASSWORD = "1234";

private static Connection conn;

static Connection getConnection() throws ClassNotFoundException, SQLException {

    Class.forName(DRIVER_CLASS_NAME);
    conn = DriverManager.getConnection(CONN_STRING, USER, PASSWORD);
    return conn;

    }

}