static Connection conn = null;
    static String dbURL = "jdbc:oracle:thin:@127.0.0.1:1521:XE";
    static String user = "labs";
    static String password = "labs";

    public JdbcEx1() {}

    public static void main(String[] args) throws SQLException
    {
        try{
            Class.forName("oracle.jdbc.driver.OracleDriver");
        }catch(ClassNotFoundException e){
            System.err.println(e.getMessage());
        }

        try{
            conn = DriverManager.getConnection(dbURL, user, password);
            conn.clearWarnings();
            System.out.println("Connection opened! for driver ==> Oracle 11XE");
        }catch(SQLException e){
            System.err.println(e.getMessage());
        }finally{
            if(!conn.isClosed()){
                conn.close();
                System.out.println("Connection closed! Oracle");
            }
        }
    }
    //End of main method