try {
            Connection con = DriverManager.getConnection("jdbc:mysql://172.18.2.70:3306/mysql?verifyServerCertificate=false&useSSL=true",
                       "userek" , "$ala_ma!kota%");
                Statement st = con.createStatement();

                ResultSet rs = st.executeQuery("Select * from userek.tabelka");
                show (rs);
                st.close();

                st = con.createStatement();
                int update_count = st.executeUpdate("INSERT INTO USEREK.TABELKA Values (0,'xD','xDDDDDD', 0)");
                System.out.println(update_count + "wypisane wiersze z USEREK.TABELKA");
                st.close();

                con.close();
        }catch(Exception e){
            e.printStackTrace();
        }

        }
    public static void show(ResultSet rs) throws SQLException{

        Vector<Vector<String>> wiersze = new Vector<Vector<String>>();

        while (rs.next()){

            Vector<String> wiersz = new Vector<>();
            wiersz.addElement(rs.getString("id"));
            wiersz.addElement(rs.getString("imie"));
            wiersz.addElement(rs.getString("nazwisko"));
            wiersz.addElement(rs.getString("pensja"));
            wiersz.addElement(rs.getString("imie") + " " + rs.getString("nazwisko"));
            wiersze.add(wiersz);

        }
        System.out.println("Begin--------");
        for (Vector<String>wiersz : wiersze){
            System.out.println("Wiersz: " + wiersz);
        }
        System.out.println("End--------");
                }