public class ClientGUI extends JFrame {

    private JPanel contentPane;
    private JTextField txtsend;
    private static JTextField txtreceive;
    private static JTextField txtip;
    private static JTextField txtport;
    private JTextField txthost;



    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ClientGUI frame = new ClientGUI();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     * @throws UnknownHostException
     * @throws IOException
     */

    public ClientGUI() throws IOException {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 500, 350);
        contentPane = new JPanel();
        contentPane.setBorder(null);
        contentPane.setLayout(new BorderLayout(0, 0));
        setContentPane(contentPane);
        InetAddress thisIp = InetAddress.getLocalHost();
        String ownIP = thisIp.getHostAddress().toString();



        JPanel panel = new JPanel();
        contentPane.add(panel, BorderLayout.CENTER);
        panel.setLayout(null);

        JPanel panel_1 = new JPanel();
        panel_1.setBounds(18, 185, 448, 118);
        panel.add(panel_1);
        panel_1.setLayout(null);
        panel_1.setBorder(BorderFactory.createLineBorder(Color.black, 2));

        txtreceive = new JTextField();
        txtreceive.setToolTipText("Gauta \u017Einut\u0117");
        txtreceive.setFont(new Font("Tahoma", Font.BOLD, 15));
        txtreceive.setEnabled(false);
        txtreceive.setBounds(70, 35, 165, 45);
        panel_1.add(txtreceive);
        txtreceive.setColumns(10);
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        JButton btnGauti = new JButton("Gauti");
        btnGauti.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String serverAddress = txtip.getText();
                int port = Integer.parseInt(txtport.getText());
                Socket s = new Socket(serverAddress, port);
                try{
                BufferedReader input =
                        new BufferedReader(new InputStreamReader(s.getInputStream()));
                String answer = input.readLine();
                txtreceive.setText(answer);
                System.exit(0);
                s.close();
                s.shutdownInput();}
                catch(IOException e1){}
            }});
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        btnGauti.setBounds(300, 46, 89, 23);
        panel_1.add(btnGauti);

        JPanel panel_2 = new JPanel();
        panel_2.setBounds(18, 85, 448, 91);
        panel.add(panel_2);
        panel_2.setLayout(null);
        panel_2.setBorder(BorderFactory.createLineBorder(Color.black, 2));

        txtsend = new JTextField();
        txtsend.setFont(new Font("Tahoma", Font.BOLD, 15));
        txtsend.setToolTipText("J\u016Bs\u0173 \u017Einut\u0117");
        txtsend.setBounds(70, 20, 165, 45);
        panel_2.add(txtsend);
        txtsend.setColumns(10);
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        JButton btnNewButton = new JButton("Si\u0173sti");
        btnNewButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String message = txtsend.getText();
                int port = Integer.parseInt(txtport.getText());
                ServerSocket listener = new ServerSocket(port);
                try{
                    while (true) {
                        Socket socket = listener.accept();
                        try {
                            PrintWriter out = new PrintWriter(socket.getOutputStream(),
                                    true);
                            out.println(message);
                            txtsend.setText(new String(""));
                            socket.close();
                            System.exit(0);
                            listener.close();}
                        catch(IOException e1){}
                        }}
                    catch(IOException e1){}
                finally {}
    }});
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        btnNewButton.setBounds(300, 33, 89, 23);
        panel_2.add(btnNewButton);

        JPanel panel_3 = new JPanel();
        panel_3.setBounds(18, 10, 448, 67);
        panel.add(panel_3);
        panel_3.setLayout(null);
        panel_3.setBorder(new LineBorder(new Color(0, 0, 0), 2));

        Label label = new Label("TCP/IP komunikacija");
        label.setBounds(5, 20, 171, 28);
        panel_3.add(label);
        label.setFont(new Font("Dialog", Font.BOLD, 16));
        label.setAlignment(Label.CENTER);

        txtip = new JTextField();
        txtip.setToolTipText("Gav\u0117jo IP Adresas");
        txtip.setBounds(241, 11, 121, 20);
        panel_3.add(txtip);
        txtip.setColumns(10);

        txtport = new JTextField();
        txtport.setToolTipText("Portas");
        txtport.setBounds(384, 22, 54, 20);
        panel_3.add(txtport);
        txtport.setColumns(10);

        txthost = new JTextField();
        txthost.setToolTipText("J\u016Bs\u0173 IP adresas");
        txthost.setHorizontalAlignment(SwingConstants.CENTER);
        txthost.setText(ownIP);
        txthost.setEditable(false);
        txthost.setBounds(241, 36, 121, 20);
        panel_3.add(txthost);
        txthost.setColumns(10);
    }
}