First Source-Code (Client)

Here you can see the first state of the project as source-code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;

public class mnChatClient {

JFrame mainframe;
JPanel mainpanel;
JPanel freespace;

JLabel lblUin;
JLabel lblPwd;
JLabel lblLogo;

JTextField txtUin;
JTextField txtPwd;

JButton btnLogin;
JButton btnRegister;

JList lstContactList;

Socket mnChatSocket;
PrintWriter senden;
BufferedReader emp;

String empfangen;


public mnChatClient() {
// Bilder Laden
Image icon = Toolkit.getDefaultToolkit().getImage("image/icon.png");
ImageIcon logo = new ImageIcon("image/logo.png");

// Deklaration aller Variablen
mainframe = new JFrame();
mainpanel = new JPanel();
freespace = new JPanel();
lblUin = new JLabel();
lblPwd = new JLabel();
lblLogo = new JLabel(logo);
txtUin = new JTextField();
txtPwd = new JTextField();
btnLogin = new JButton();
btnRegister = new JButton();
lstContactList = new JList();

// Ab Hier alles was auskommentiert ist wird zum Verbinden/Empfangen und Senden benötigt

/*try {
mnChatSocket = new Socket("127.0.0.1", 30000);
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
System.exit(0);
}

try {
senden = new PrintWriter(mnChatSocket.getOutputStream());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

try {
emp = new BufferedReader(new InputStreamReader(mnChatSocket.getInputStream()));
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}*/

// mainframe
mainframe.setTitle("mnChatClient");
mainframe.setIconImage(icon);
mainframe.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);

// Texte der Labels und Buttons setzen
lblUin.setText("UIN");
lblPwd.setText("Passwort");
btnLogin.setText("Anmelden");
btnRegister.setText("Neuen Account anlegen");

// Größer des mainframes und des mainpanels setzen
mainframe.setPreferredSize(new Dimension(230, 800));
mainpanel.setPreferredSize(new Dimension(220, 400));
freespace.setPreferredSize(new Dimension(220, 250));

// Logo in den Freespace laden
freespace.add("Center", lblLogo);

// Alles auf Visible true setzen
mainframe.setVisible(true);
mainpanel.setVisible(true);
freespace.setVisible(true);
lblUin.setVisible(true);
lblPwd.setVisible(true);
lblLogo.setVisible(true);
txtUin.setVisible(true);
txtPwd.setVisible(true);
btnLogin.setVisible(true);
btnRegister.setVisible(true);

// Größe der textfelder einstellen
txtUin.setPreferredSize(new Dimension(210, 24));
txtPwd.setPreferredSize(new Dimension(210, 24));
btnLogin.setPreferredSize(new Dimension(210, 24));
btnRegister.setPreferredSize(new Dimension(210, 24));

// Alle einzelnen Elemente dem mainpanel hinzufügen
mainpanel.add("Center", lblUin);
mainpanel.add("Center", txtUin);
mainpanel.add("Center", lblPwd);
mainpanel.add("Center", txtPwd);
mainpanel.add("Center", btnLogin);
mainpanel.add("Center", btnRegister);

// Alle Panels in den Frame adden
mainframe.add("North", freespace);
mainframe.add("Center", mainpanel);

// OnClose Event
mainframe.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
CloseEverything();
}
});

// Login OnClick Event
btnLogin.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
Login();
}
});

// Größe des Mainframes einstellen
mainframe.pack();
}

public void CloseEverything() {
System.exit(0);
try {
mnChatSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

public void Login() {
senden.println("login|" + txtUin.getText() + "|" + txtPwd.getText());
senden.flush();
try {
empfangen = emp.readLine();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(empfangen.equals(new String("1")))
{
HideLogin();
senden.println("get");
senden.flush();
try {
empfangen = emp.readLine();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(empfangen);
String [] result = null;
result = empfangen.split("\\|");
for(int i = 0; i < result.length; i++) { } } } public void HideLogin() { txtUin.setVisible(false); txtPwd.setVisible(false); btnLogin.setVisible(false); btnRegister.setVisible(false); lblUin.setVisible(false); lblPwd.setVisible(false); lblLogo.setVisible(false); } public static void main(String[] args) { // TODO Auto-generated method stub @SuppressWarnings("unused") mnChatClient mnChatClient = new mnChatClient(); } }