update

package tcpclient;

import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.sql.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;

public class TCPclient implements Runnable {

    private static final String UserName = "root";
    private static final String Password = "";
    private static final String ConnString = "jdbc:mysql://localhost:3306/football_db?zeroDateTimeBehavior=convertToNull";

    private Socket socket = null;
    private Thread thread = null;
    private DataInputStream console = null;
    private DataOutputStream streamOut = null;
    private ChatClientThread client = null;

    Connection conn = null;
    boolean loginFlag = false;

    JFrame frameReg;

    JLabel labelLog1;//show msg from top
    JLabel labelLog2;//shows "username"
    JLabel labelLog3;//shows "password"
    JLabel labelLog4;//shows msg to register
    JTextField textLog1;//username textField
    JTextField textLog2;//password textField
    JButton buttonLog1;//login button
    JButton buttonLog2;//register button
    JPanel panelLog;//panel for user login

    JLabel labelReg1;//show msg from top
    JLabel labelReg2;//First name
    JLabel labelReg3;//Last name
    JLabel labelReg4;//user name
    JLabel labelReg5;//password
    JTextField textReg1;//First name txt
    JTextField textReg2;//Last name txt
    JTextField textReg3;//user name txt
    JTextField textReg4;//password txt
    JButton buttonReg1;//register button
    JPanel panelReg;//panel for register

    String userNameLog;
    String passwordLog;
    String registerLog = "register"; //login panel er register button
    String firstNameReg;
    String userNameReg;
    String passwordReg;
    String teamNameReg;
    String registerReg = "registered"; //register panel er register button
    String allRegInfo;

    public TCPclient(String serverName, int serverPort) throws SQLException {

        frameReg = new JFrame();
        frameReg.setSize(500, 500);
        frameReg.setLayout(null);

        //everything for login panel
        panelLog = new JPanel();
        panelLog.setBounds(0, 0, 0, 0);
        panelLog.setLayout(null);
        panelLog.setSize(500, 500);
        panelLog.setBackground(Color.LIGHT_GRAY);

        labelLog1 = new JLabel();
        labelLog1.setBounds(100, 20, 400, 50);
        labelLog1.setFont(new Font("Reklame Script", Font.PLAIN, 20));
        labelLog1.setText("Login if you have an existing account");

        labelLog2 = new JLabel();
        labelLog2.setBounds(20, 95, 100, 50);
        labelLog2.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelLog2.setText("Username");
        textLog1 = new JTextField();
        textLog1.setBounds(100, 105, 300, 30);
        textLog1.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        labelLog3 = new JLabel();
        labelLog3.setBounds(20, 165, 100, 50);
        labelLog3.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelLog3.setText("Password");
        textLog2 = new JTextField();
        textLog2.setBounds(100, 175, 300, 30);
        textLog2.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        buttonLog1 = new JButton();
        buttonLog1.setText("Login");
        buttonLog1.setBounds(150, 100, 130, 30);
        buttonLog1.setLocation(190, 250);

        labelLog4 = new JLabel();
        labelLog4.setBounds(15, 330, 400, 50);
        labelLog4.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelLog4.setText("If you do not have an account click-->>");

        buttonLog2 = new JButton();
        buttonLog2.setText("Register");
        buttonLog2.setBounds(150, 100, 130, 30);
        buttonLog2.setLocation(330, 340);

        panelLog.add(labelLog1);
        panelLog.add(labelLog2);
        panelLog.add(labelLog3);
        panelLog.add(labelLog4);
        panelLog.add(textLog1);
        panelLog.add(textLog2);
        panelLog.add(buttonLog1);
        panelLog.add(buttonLog2);
        frameReg.add(panelLog);

        //everything for register panel.
        panelReg = new JPanel();
        panelReg.setBounds(0, 0, 0, 0);
        panelReg.setLayout(null);
        panelReg.setSize(500, 500);
        panelReg.setBackground(Color.LIGHT_GRAY);

        labelReg1 = new JLabel();
        labelReg1.setBounds(100, 20, 400, 50);
        labelReg1.setFont(new Font("Reklame Script", Font.PLAIN, 20));
        labelReg1.setText("Fill the form below to register");

        labelReg2 = new JLabel();
        labelReg2.setBounds(20, 95, 100, 50);
        labelReg2.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelReg2.setText("First Name");
        textReg1 = new JTextField();
        textReg1.setBounds(120, 105, 300, 30);
        textReg1.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        labelReg3 = new JLabel();
        labelReg3.setBounds(20, 165, 100, 50);
        labelReg3.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelReg3.setText("User Name");
        textReg2 = new JTextField();
        textReg2.setBounds(120, 175, 300, 30);
        textReg2.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        labelReg4 = new JLabel();
        labelReg4.setBounds(20, 235, 100, 50);
        labelReg4.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelReg4.setText("Password");
        textReg3 = new JTextField();
        textReg3.setBounds(120, 245, 300, 30);
        textReg3.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        labelReg5 = new JLabel();
        labelReg5.setBounds(20, 305, 100, 50);
        labelReg5.setFont(new Font("Reklame Script", Font.BOLD, 14));
        labelReg5.setText("Team Name");
        textReg4 = new JTextField();
        textReg4.setBounds(120, 315, 300, 30);
        textReg4.setFont(new Font("Reklame Script", Font.PLAIN, 14));

        buttonReg1 = new JButton();
        buttonReg1.setText("Register");
        buttonReg1.setBounds(150, 100, 130, 30);
        buttonReg1.setLocation(210, 370);

        panelReg.add(labelReg1);
        panelReg.add(labelReg2);
        panelReg.add(textReg1);
        panelReg.add(labelReg3);
        panelReg.add(textReg2);
        panelReg.add(labelReg4);
        panelReg.add(textReg3);
        panelReg.add(labelReg5);
        panelReg.add(textReg4);
        panelReg.add(buttonReg1);

        frameReg.show();

        System.out.println("Establishing connection. Please wait ...");
        try {
            socket = new Socket(serverName, serverPort);
            System.out.println("Connected: " + socket);
            start();
        } catch (UnknownHostException uhe) {
            System.out.println("Host unknown: " + uhe.getMessage());
        } catch (IOException ioe) {
            System.out.println("Unexpected exception: " + ioe.getMessage());
        }
    }

    public void run() {
        while (thread != null) {
            try {

                if(!loginFlag)
                {
                    System.out.println("login flag true.");
                    panelLog.setVisible(false);
                }

                buttonLog1.addActionListener(new ActionListener() {

                    @Override
                    public void actionPerformed(ActionEvent ae) {
                        //buttonLog1.setBackground(Color.GRAY);

                        userNameLog = textLog1.getText();
                        passwordLog = textLog2.getText();
                        userNameLog += " " + passwordLog + " user";
                        System.out.println("check krtesi userlog: " + userNameLog);

                        try {
                            streamOut.writeUTF(userNameLog);
                            streamOut.flush();

                        } catch (IOException ex) {
                            Logger.getLogger(TCPclient.class.getName()).log(Level.SEVERE, null, ex);
                            stop();//THIS STOP() IS VERy IMPORTATN X_X
                        }
                    }
                });

                buttonLog2.addActionListener(new ActionListener() {

                    @Override
                    public void actionPerformed(ActionEvent ae) {
                        //buttonLog2.setBackground(Color.GRAY);
                        //System.out.println("register button clicked.");
                        panelLog.setVisible(false);
                        frameReg.add(panelReg);

                        try {
                            streamOut.writeUTF(registerLog);//register
                            streamOut.flush();

                        } catch (IOException ex) {
                            Logger.getLogger(TCPclient.class.getName()).log(Level.SEVERE, null, ex);
                            stop();//THIS STOP() IS VERy IMPORTATN X_X
                        }
                    }
                });

                buttonReg1.addActionListener(new ActionListener() {

                    @Override
                    public void actionPerformed(ActionEvent ae) {
                        //buttonReg1.setBackground(Color.GRAY);
                        //System.out.println("register button clicked.");
                        panelReg.setVisible(false);
                        frameReg.add(panelLog);
                        panelLog.setVisible(true);

                        firstNameReg = textReg1.getText();
                        userNameReg = textReg2.getText();
                        passwordReg = textReg3.getText();
                        teamNameReg = textReg4.getText();
                        allRegInfo += " " + firstNameReg + " " + userNameReg + " " + passwordReg + " " + teamNameReg + " registered";
                        System.out.println("First name: " + firstNameReg + " User: " + userNameReg + " Password: " + passwordReg + " Team name: " + teamNameReg);

                        try {
                            streamOut.writeUTF(allRegInfo);//registered
                            streamOut.flush();

                        } catch (IOException ex) {
                            Logger.getLogger(TCPclient.class.getName()).log(Level.SEVERE, null, ex);
                            stop();//THIS STOP() IS VERy IMPORTATN X_X
                        }
                    }
                });

                streamOut.writeUTF(console.readLine());
                streamOut.flush();
            } catch (IOException ioe) {
                System.out.println("Sending error: " + ioe.getMessage());
                stop();
            }
        }
    }

    public void handle(String msg) {
        if (msg.equals("matched")) {
            System.out.println("Server sent *" + msg + "*");
        } else if (msg.endsWith("failed")) {
            JOptionPane.showMessageDialog(panelLog, msg);
            System.err.println("LogIn failed");
        } else if (msg.endsWith("successful")) {
            JOptionPane.showMessageDialog(panelLog, "Login successful. Welcome");
            loginFlag = true;
        } else if (msg.equals(".bye")) {
            System.out.println("Good bye. Press RETURN to exit ...");
            stop();
        } else {
            System.out.println(msg);
        }
    }

    public void start() throws IOException {
        console = new DataInputStream(System.in);
        streamOut = new DataOutputStream(socket.getOutputStream());
        if (thread == null) {
            client = new ChatClientThread(this, socket);
            thread = new Thread(this);
            thread.start();
        }
    }

    public void stop() {
        if (thread != null) {
            thread.stop();
            thread = null;
        }
        try {
            if (console != null) {
                console.close();
            }
            if (streamOut != null) {
                streamOut.close();
            }
            if (socket != null) {
                socket.close();
            }
        } catch (IOException ioe) {
            System.out.println("Error closing ...");
        }
        client.close();
        client.stop();
    }

    public static void main(String args[]) throws SQLException, ClassNotFoundException {
        TCPclient client = null;
        client = new TCPclient("localhost", 2000);

        /*Connection conn = null;
         try {
         Class.forName("com.mysql.jdbc.Driver");
         conn = (Connection) DriverManager.getConnection(ConnString, UserName, Password);
         System.out.println("Connected");
         Statement st = (Statement) conn.createStatement();
         String insert = "INSERT INTO `team` (`team_id`, `team_name`, `gk`, `def`, `mid1`, `mid2`, `strike`) "
                 + "VALUES ('1', 'alpha', 'a', 'f', 'a', 'cvb', 'b');";
         st.executeUpdate(insert);
         } catch (SQLException e) {
         System.err.println(e);
         }*/
    }

}