public class Com {

    public static Connection getConnection(){
        Connection conn = null;
        try{
            Class.forName("oracle.jdbc.driver.OracleDriver");
            conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1522:orcl", "SH12", "121212");

        }catch (Exception e) {
            e.printStackTrace();
        }
        return conn;
    }


    public static void closeConnection(Connection conn){
        try{
            if(conn != null){
                if(!conn.isClosed()){
                    conn.close();
                }
            }
        }catch (Exception e) {
            e.printStackTrace();
        }
    }

}