ist mal n Anfang

wenn du das Programm über Start.java startest, erscheint die View + 
Dialog zum Auswählen, es passiert aber noch nix

.gitignore

 /nbproject/private/
+/build/
+/dist/

nbproject/project.properties

 jlink.additionalparam=
 jlink.launcher=true
 jlink.launcher.name=Aufgabe10_ChatProgramm
-main.class=Aufgabe10_ChatProgramm.Start
+main.class=ChatProgramm.Start
 manifest.file=manifest.mf
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=false

src/Aufgabe10_ChatProgramm/Start.java

-/*
- * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
- * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template
- */
-
-package Aufgabe10_ChatProgramm;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.MalformedURLException;
-import java.net.URL;
-
-/**
- * Builder Class
- * @author le
- */
-public class Start
-{
-  public Start(String host, String dateiname) throws MalformedURLException, IOException
-  {
-    URL oURL = new URL(host + "/" + dateiname);
-    InputStream inS = oURL.openStream();
-    BufferedInputStream in = new BufferedInputStream(inS);
-    
-    String tmpVerzeichnis = System.getProperty("java.io.tmpdir");
-    String ausgabeDatei = tmpVerzeichnis + File.separator + dateiname;
-    
-    FileOutputStream fos = new FileOutputStream(ausgabeDatei);
-    BufferedOutputStream out = new BufferedOutputStream(fos);
-    
-    int wert = 0;
-    
-    while ( (wert = in.read()) >= 0)
-    {
-      out.write(wert);
-    }
-    out.flush();
-    out.close();
-    in.close();
-    System.out.println("Datei " + dateiname +
-                       " im Verzeichnis " + tmpVerzeichnis + 
-                       " gespeichert");
-  }
-
-  /**
-   * @param args the command line arguments
-   */
-  public static void main(String[] args) 
-  {
-    if (args.length != 2)
-    {
-      System.err.println("2 Aufrufparameter nötig: Host und Dateiname");
-    }
-    else
-    {
-      try
-      {
-        new Start(args[0], args[1]);
-      }
-      catch (Exception ex)
-      {
-        System.err.println(ex);
-      }
-    }
-  }
-}

src/Aufgabe10_ChatProgramm/Client.java → src/ChatProgramm/Client.java

  * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template
  */
 
-package Aufgabe10_ChatProgramm;
+package ChatProgramm;
 
 import java.io.BufferedReader;
 import java.io.IOException;

src/Aufgabe10_ChatProgramm/Server.java → src/ChatProgramm/Server.java

  * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template
  */
 
-package Aufgabe10_ChatProgramm;
+package ChatProgramm;
 
 import java.io.BufferedReader;
 import java.io.IOException;

src/ChatProgramm/Start.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template
+ */
+
+package ChatProgramm;
+
+import ChatProgramm.controller.CommandController;
+import ChatProgramm.model.Transmitter;
+import ChatProgramm.view.ChatView;
+import javax.swing.JOptionPane;
+import javax.swing.UIManager;
+
+/**
+ * Builder Class
+ * @author le
+ */
+public class Start
+{
+  public Start()
+  {
+    Transmitter transmitter = new Transmitter();
+    ChatView view = new ChatView();
+    CommandController controller_commands = new CommandController(view, transmitter);
+    controller_commands.registerEvents();
+    controller_commands.registerCommands();
+    view.setVisible(true);
+  }
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String[] args) 
+  {
+    try
+    {
+      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+    }
+    catch (Exception ex)
+    {
+      JOptionPane.showMessageDialog(null, ex.toString());
+    }
+    new Start();
+  }
+}

src/ChatProgramm/controller/CommandController.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller;
+
+import ChatProgramm.controller.commands.CommandConnect;
+import ChatProgramm.controller.commands.CommandInvoker;
+import ChatProgramm.controller.commands.CommandSend;
+import ChatProgramm.model.Transmitter;
+import ChatProgramm.view.ChatView;
+import java.awt.Component;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ *
+ * @author ahren
+ */
+public class CommandController implements ActionListener{
+    
+    private ChatView view;
+    private Transmitter transmitter;
+    private CommandInvoker invoker;
+    
+    public CommandController(ChatView view, Transmitter transmitter){
+        this.view = view;
+        this.transmitter = transmitter;
+        this.invoker = new CommandInvoker();
+    }
+    
+    public void registerEvents(){
+        view.getBtnConnect().addActionListener(this); 
+        view.getTfNachricht().addActionListener(this);
+    }
+    
+    public void registerCommands(){
+        invoker.addCommand(view.getBtnConnect(), new CommandConnect());
+        invoker.addCommand(view.getTfNachricht(), new CommandSend());
+    }
+
+    /**
+     * Ausführen des jeweiligen Kommandos
+     * @param e Referenz auf das Event
+     */
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        Component key = (Component)e.getSource();
+        invoker.executeCommand(key);
+//        if(key == view.getBtnOpen()|| key==view.getMiOpen())
+//          invoker.deleteStack();
+//        }
+    }
+    
+}
+
+

src/ChatProgramm/controller/Nachricht.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller;
+
+/**
+ *
+ * @author ahren
+ */
+class Nachricht 
+{
+  public Nachricht()
+  {
+  
+  }
+}

src/ChatProgramm/controller/ReceiveAdapter.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller;
+
+import java.util.concurrent.Flow;
+import java.util.concurrent.Flow.Subscriber;
+
+/**
+ *
+ * @author ahren
+ */
+public class ReceiveAdapter implements Subscriber<Nachricht>
+{
+  public ReceiveAdapter()
+  {
+  
+  }
+
+  @Override
+  public void onSubscribe(Flow.Subscription subscription)
+  {
+  }
+
+  @Override
+  public void onNext(Nachricht item)
+  {
+  }
+
+  @Override
+  public void onError(Throwable throwable)
+  {
+  }
+
+  @Override
+  public void onComplete()
+  {
+  }
+}

src/ChatProgramm/controller/commands/CommandConnect.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller.commands;
+
+/**
+ *
+ * @author ahren
+ */
+public class CommandConnect implements CommandInterface
+{
+  public CommandConnect()
+  {
+  
+  }
+
+  @Override
+  public void execute()
+  {
+  }
+
+  @Override
+  public boolean isUndoable()
+  {
+    return false;
+  }
+
+  @Override
+  public void undo()
+  {
+  }
+}

src/ChatProgramm/controller/commands/CommandInterface.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller.commands;
+
+/**
+ *
+ * @author ahren
+ */
+public interface CommandInterface
+{
+  public void execute();
+  public void undo();
+//  public void redo();
+  public boolean isUndoable();
+}

src/ChatProgramm/controller/commands/CommandInvoker.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller.commands;
+
+import java.awt.Component;
+import java.util.HashMap;
+import java.util.Stack;
+
+/**
+ *
+ * @author ahren
+ */
+public class CommandInvoker {
+    
+    private HashMap<Component, CommandInterface> commands;
+    private Stack <CommandInterface> undoStack;
+    
+    public CommandInvoker(){
+        commands = new HashMap<>();
+        undoStack = new Stack();  
+    }
+    
+    /**
+    * Fügt ein Kommando zur Kommando-"Datenbank" = HashMap hinzu
+    * @param key Quelle des Events
+    * @param value Referenz auf das zugehörige Kommando-Objekt
+    */
+    public void addCommand(Component key, CommandInterface value){
+        commands.put(key, value);
+    }
+    
+    /**
+    * Führt Kommando der Eventquelle "key" aus und legt die Referenz
+    * des Kommando in den Undo-Stack
+    * @param key Referenz auf die Eventquelle
+    */
+    public void executeCommand(Component key){
+      CommandInterface command = commands.get(key);
+      command.execute();
+      if (command.isUndoable())
+      {
+        undoStack.push(command);
+      }
+    }
+    /**
+    * Falls der Stack Elemente enthält, wird das oberste Element geholt
+    * und die Methode "undo" des Commands aufgerufen
+    */
+    public void undoCommand()
+    {
+      if (!undoStack.isEmpty())
+      {
+        undoStack.pop().undo();
+      }
+    }
+
+    /**
+     * Löscht bei Öffnen einer neuen Datei den Stack
+     */
+    public void deleteStack()
+    {
+      while(!undoStack.isEmpty())
+        undoStack.pop();
+    }
+    
+}

src/ChatProgramm/controller/commands/CommandSend.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.controller.commands;
+
+/**
+ *
+ * @author ahren
+ */
+public class CommandSend implements CommandInterface
+{
+  public CommandSend()
+  {
+  
+  }
+
+  @Override
+  public void execute()
+  {
+  }
+
+  @Override
+  public boolean isUndoable()
+  {
+    return false;
+  }
+
+  @Override
+  public void undo()
+  {
+  }
+}

src/ChatProgramm/model/Transmitter.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package ChatProgramm.model;
+
+/**
+ *
+ * @author ahren
+ */
+public class Transmitter implements Runnable
+{
+  public Transmitter()
+  {
+  
+  }
+
+  @Override
+  public void run()
+  {
+  }
+}

src/ChatProgramm/util/OhmLogger.java

+package ChatProgramm.util;
+
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.time.LocalDateTime;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+//import java.util.Properties;
+import java.util.logging.*;
+
+/**
+ * Klasse zur eigens konfigurierten Log-Ausgabe in der Console
+ * @author ahrens
+ */
+public class OhmLogger
+{
+  private static final String LOGGER_NAME = "OhmLogger";
+  private static Logger lg = null;
+  
+  /**
+   * privater Konstrukter -> Singleton
+   */
+  private OhmLogger() 
+  {
+  }
+  
+  /**
+   * Public Method zum Erstellen des Loggers und zum Aufruf der Methode 
+   * zum Initialisieren
+   * @return Referenz auf Logger
+   */
+  public static Logger getLogger()
+  {
+    if (lg == null)
+    {
+      lg = Logger.getLogger(LOGGER_NAME);
+      initLogger();
+    }
+    return lg;
+  }
+  
+  /**
+   * Methode zum Initialisieren, Suchen der Konfigurationsdatei, Anlegen eines
+   * neuen Console Handlers, Löschen der bisherigen Standard Handler und 
+   * Einfügen des eigenen Handler, Setzen des Levels, je nach Properties
+   */
+  private static void initLogger()
+  {
+    try (InputStream configFile = OhmLogger.class.getClassLoader().getResourceAsStream("config.properties")) {
+      if (configFile != null) {
+        Properties properties = new Properties();
+        properties.load(configFile);
+        java.util.logging.Level classLogLevel = java.util.logging.Level.parse(properties.getProperty("log.level"));
+          
+        
+        ConsoleHandler ch = new ConsoleHandler();
+        ch.setFormatter(new OhmFormatter());
+        lg.setUseParentHandlers(false);
+        lg.getHandlers();
+        lg.addHandler(ch);
+
+
+        lg.setLevel(classLogLevel);
+        
+        String logDirectory = properties.getProperty("log.directory");
+        String logFileName = properties.getProperty("log.filename");
+
+        FileHandler fileHandler = new FileHandler(logDirectory + "/" + logFileName, true);
+        fileHandler.setFormatter(new OhmFormatter());
+        lg.addHandler(fileHandler);
+                      
+            
+      } else {
+        System.err.println("Unable to find config.properties file. OhmLogger will use default settings.");
+      }
+    } catch (IOException | SecurityException e) {
+      System.err.println("Error configuring OhmLogger: " + e.getMessage());
+    }
+    
+  }
+}
+
+/**
+ * Klasse zum Setzen des Formates des Auszugebenden Log-Strings
+ * @author ahren
+ */
+class OhmFormatter extends Formatter
+{
+  @Override
+  public String format(LogRecord record)
+  {
+    String logline = "| ";
+    
+    LocalDateTime ldt = LocalDateTime.now();
+    logline += ldt.toString();
+    logline += " | " + record.getLevel();
+    logline += " | " + record.getSourceClassName();
+    logline += " | " + record.getMessage();
+    logline += " |\n";
+    
+    return logline;
+  }
+}

src/ChatProgramm/view/ChatView.form

+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
+  <NonVisualComponents>
+    <Container class="javax.swing.JDialog" name="dialogChooseMode">
+      <Properties>
+        <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[278, 208]"/>
+        </Property>
+      </Properties>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignGridLayout">
+        <Property name="columns" type="int" value="1"/>
+        <Property name="rows" type="int" value="0"/>
+      </Layout>
+      <SubComponents>
+        <Component class="javax.swing.JLabel" name="lblMode">
+          <Properties>
+            <Property name="text" type="java.lang.String" value="  Choose your mode:"/>
+          </Properties>
+        </Component>
+        <Component class="javax.swing.JRadioButton" name="BtnServer">
+          <Properties>
+            <Property name="buttonGroup" type="javax.swing.ButtonGroup" editor="org.netbeans.modules.form.RADComponent$ButtonGroupPropertyEditor">
+              <ComponentRef name="BtnGrpMode"/>
+            </Property>
+            <Property name="text" type="java.lang.String" value="Server"/>
+          </Properties>
+          <Events>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="BtnServerActionPerformed"/>
+          </Events>
+        </Component>
+        <Component class="javax.swing.JRadioButton" name="BtnClient">
+          <Properties>
+            <Property name="buttonGroup" type="javax.swing.ButtonGroup" editor="org.netbeans.modules.form.RADComponent$ButtonGroupPropertyEditor">
+              <ComponentRef name="BtnGrpMode"/>
+            </Property>
+            <Property name="text" type="java.lang.String" value="Client"/>
+          </Properties>
+          <Events>
+            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="BtnClientActionPerformed"/>
+          </Events>
+        </Component>
+        <Container class="javax.swing.JPanel" name="jPanel1">
+
+          <Layout>
+            <DimensionLayout dim="0">
+              <Group type="103" groupAlignment="0" attributes="0">
+                  <Group type="102" alignment="0" attributes="0">
+                      <EmptySpace pref="65" max="32767" attributes="0"/>
+                      <Component id="BtnConnect" min="-2" max="-2" attributes="0"/>
+                      <EmptySpace pref="76" max="32767" attributes="0"/>
+                  </Group>
+              </Group>
+            </DimensionLayout>
+            <DimensionLayout dim="1">
+              <Group type="103" groupAlignment="0" attributes="0">
+                  <Group type="102" alignment="0" attributes="0">
+                      <EmptySpace max="-2" attributes="0"/>
+                      <Component id="BtnConnect" min="-2" max="-2" attributes="0"/>
+                      <EmptySpace pref="57" max="32767" attributes="0"/>
+                  </Group>
+              </Group>
+            </DimensionLayout>
+          </Layout>
+          <SubComponents>
+            <Component class="javax.swing.JButton" name="BtnConnect">
+              <Properties>
+                <Property name="text" type="java.lang.String" value="Connect"/>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="BtnConnectActionPerformed"/>
+              </Events>
+            </Component>
+          </SubComponents>
+        </Container>
+      </SubComponents>
+    </Container>
+    <Component class="javax.swing.ButtonGroup" name="BtnGrpMode">
+    </Component>
+  </NonVisualComponents>
+  <Properties>
+    <Property name="defaultCloseOperation" type="int" value="3"/>
+    <Property name="minimumSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+      <Dimension value="[568, 548]"/>
+    </Property>
+  </Properties>
+  <SyntheticProperties>
+    <SyntheticProperty name="formSizePolicy" type="int" value="1"/>
+    <SyntheticProperty name="generateCenter" type="boolean" value="false"/>
+  </SyntheticProperties>
+  <Events>
+    <EventHandler event="windowOpened" listener="java.awt.event.WindowListener" parameters="java.awt.event.WindowEvent" handler="formWindowOpened"/>
+  </Events>
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,44,0,0,1,-112"/>
+  </AuxValues>
+
+  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout"/>
+  <SubComponents>
+    <Component class="javax.swing.JTextField" name="tfNachricht">
+      <Properties>
+        <Property name="toolTipText" type="java.lang.String" value=""/>
+      </Properties>
+      <Events>
+        <EventHandler event="mouseClicked" listener="java.awt.event.MouseListener" parameters="java.awt.event.MouseEvent" handler="tfNachrichtMouseClicked"/>
+        <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="tfNachrichtActionPerformed"/>
+      </Events>
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="Last"/>
+        </Constraint>
+      </Constraints>
+    </Component>
+    <Container class="javax.swing.JScrollPane" name="jScrollPane2">
+      <Properties>
+        <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
+          <Dimension value="[238, 150]"/>
+        </Property>
+      </Properties>
+      <AuxValues>
+        <AuxValue name="autoScrollPane" type="java.lang.Boolean" value="true"/>
+      </AuxValues>
+      <Constraints>
+        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout" value="org.netbeans.modules.form.compat2.layouts.DesignBorderLayout$BorderConstraintsDescription">
+          <BorderConstraints direction="Center"/>
+        </Constraint>
+      </Constraints>
+
+      <Layout class="org.netbeans.modules.form.compat2.layouts.support.JScrollPaneSupportLayout"/>
+      <SubComponents>
+        <Component class="javax.swing.JTextArea" name="txtChat">
+          <Properties>
+            <Property name="columns" type="int" value="20"/>
+            <Property name="rows" type="int" value="5"/>
+            <Property name="text" type="java.lang.String" value="Chat:"/>
+          </Properties>
+        </Component>
+      </SubComponents>
+    </Container>
+  </SubComponents>
+</Form>

src/ChatProgramm/view/ChatView.java

+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JFrame.java to edit this template
+ */
+package ChatProgramm.view;
+
+/**
+ *
+ * @author ahren
+ */
+public class ChatView extends javax.swing.JFrame
+{
+
+  /**
+   * Creates new form ChatView
+   */
+  public ChatView()
+  {
+    initComponents();
+  }
+
+  /**
+   * This method is called from within the constructor to initialize the form.
+   * WARNING: Do NOT modify this code. The content of this method is always
+   * regenerated by the Form Editor.
+   */
+  @SuppressWarnings("unchecked")
+  // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+  private void initComponents()
+  {
+
+    dialogChooseMode = new javax.swing.JDialog();
+    lblMode = new javax.swing.JLabel();
+    BtnServer = new javax.swing.JRadioButton();
+    BtnClient = new javax.swing.JRadioButton();
+    jPanel1 = new javax.swing.JPanel();
+    BtnConnect = new javax.swing.JButton();
+    BtnGrpMode = new javax.swing.ButtonGroup();
+    tfNachricht = new javax.swing.JTextField();
+    jScrollPane2 = new javax.swing.JScrollPane();
+    txtChat = new javax.swing.JTextArea();
+
+    dialogChooseMode.setMinimumSize(new java.awt.Dimension(278, 208));
+    dialogChooseMode.getContentPane().setLayout(new java.awt.GridLayout(0, 1));
+
+    lblMode.setText("  Choose your mode:");
+    dialogChooseMode.getContentPane().add(lblMode);
+
+    BtnGrpMode.add(BtnServer);
+    BtnServer.setText("Server");
+    BtnServer.addActionListener(new java.awt.event.ActionListener()
+    {
+      public void actionPerformed(java.awt.event.ActionEvent evt)
+      {
+        BtnServerActionPerformed(evt);
+      }
+    });
+    dialogChooseMode.getContentPane().add(BtnServer);
+
+    BtnGrpMode.add(BtnClient);
+    BtnClient.setText("Client");
+    BtnClient.addActionListener(new java.awt.event.ActionListener()
+    {
+      public void actionPerformed(java.awt.event.ActionEvent evt)
+      {
+        BtnClientActionPerformed(evt);
+      }
+    });
+    dialogChooseMode.getContentPane().add(BtnClient);
+
+    BtnConnect.setText("Connect");
+    BtnConnect.addActionListener(new java.awt.event.ActionListener()
+    {
+      public void actionPerformed(java.awt.event.ActionEvent evt)
+      {
+        BtnConnectActionPerformed(evt);
+      }
+    });
+
+    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
+    jPanel1.setLayout(jPanel1Layout);
+    jPanel1Layout.setHorizontalGroup(
+      jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+      .addGroup(jPanel1Layout.createSequentialGroup()
+        .addContainerGap(65, Short.MAX_VALUE)
+        .addComponent(BtnConnect)
+        .addContainerGap(76, Short.MAX_VALUE))
+    );
+    jPanel1Layout.setVerticalGroup(
+      jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+      .addGroup(jPanel1Layout.createSequentialGroup()
+        .addContainerGap()
+        .addComponent(BtnConnect)
+        .addContainerGap(57, Short.MAX_VALUE))
+    );
+
+    dialogChooseMode.getContentPane().add(jPanel1);
+
+    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
+    setMinimumSize(new java.awt.Dimension(568, 548));
+    addWindowListener(new java.awt.event.WindowAdapter()
+    {
+      public void windowOpened(java.awt.event.WindowEvent evt)
+      {
+        formWindowOpened(evt);
+      }
+    });
+
+    tfNachricht.setToolTipText("");
+    tfNachricht.addMouseListener(new java.awt.event.MouseAdapter()
+    {
+      public void mouseClicked(java.awt.event.MouseEvent evt)
+      {
+        tfNachrichtMouseClicked(evt);
+      }
+    });
+    tfNachricht.addActionListener(new java.awt.event.ActionListener()
+    {
+      public void actionPerformed(java.awt.event.ActionEvent evt)
+      {
+        tfNachrichtActionPerformed(evt);
+      }
+    });
+    getContentPane().add(tfNachricht, java.awt.BorderLayout.PAGE_END);
+
+    jScrollPane2.setPreferredSize(new java.awt.Dimension(238, 150));
+
+    txtChat.setColumns(20);
+    txtChat.setRows(5);
+    txtChat.setText("Chat:");
+    jScrollPane2.setViewportView(txtChat);
+
+    getContentPane().add(jScrollPane2, java.awt.BorderLayout.CENTER);
+
+    pack();
+  }// </editor-fold>//GEN-END:initComponents
+
+  private void BtnClientActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_BtnClientActionPerformed
+  {//GEN-HEADEREND:event_BtnClientActionPerformed
+    // TODO add your handling code here:
+  }//GEN-LAST:event_BtnClientActionPerformed
+
+  private void BtnServerActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_BtnServerActionPerformed
+  {//GEN-HEADEREND:event_BtnServerActionPerformed
+    // TODO add your handling code here:
+  }//GEN-LAST:event_BtnServerActionPerformed
+
+  private void tfNachrichtActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_tfNachrichtActionPerformed
+  {//GEN-HEADEREND:event_tfNachrichtActionPerformed
+    // TODO add your handling code here:
+  }//GEN-LAST:event_tfNachrichtActionPerformed
+
+  private void formWindowOpened(java.awt.event.WindowEvent evt)//GEN-FIRST:event_formWindowOpened
+  {//GEN-HEADEREND:event_formWindowOpened
+    dialogChooseMode.show(); 
+  }//GEN-LAST:event_formWindowOpened
+
+  private void tfNachrichtMouseClicked(java.awt.event.MouseEvent evt)//GEN-FIRST:event_tfNachrichtMouseClicked
+  {//GEN-HEADEREND:event_tfNachrichtMouseClicked
+
+  }//GEN-LAST:event_tfNachrichtMouseClicked
+
+  private void BtnConnectActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_BtnConnectActionPerformed
+  {//GEN-HEADEREND:event_BtnConnectActionPerformed
+    // TODO add your handling code here:
+  }//GEN-LAST:event_BtnConnectActionPerformed
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String args[])
+  {
+    /* Set the Nimbus look and feel */
+    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
+    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
+         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
+     */
+    try
+    {
+      for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels())
+      {
+        if ("Nimbus".equals(info.getName()))
+        {
+          javax.swing.UIManager.setLookAndFeel(info.getClassName());
+          break;
+        }
+      }
+    }
+    catch (ClassNotFoundException ex)
+    {
+      java.util.logging.Logger.getLogger(ChatView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (InstantiationException ex)
+    {
+      java.util.logging.Logger.getLogger(ChatView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (IllegalAccessException ex)
+    {
+      java.util.logging.Logger.getLogger(ChatView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    catch (javax.swing.UnsupportedLookAndFeelException ex)
+    {
+      java.util.logging.Logger.getLogger(ChatView.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+    }
+    //</editor-fold>
+
+    /* Create and display the form */
+    java.awt.EventQueue.invokeLater(new Runnable()
+    {
+      public void run()
+      {
+        new ChatView().setVisible(true);
+      }
+    });
+  }
+
+  // Variables declaration - do not modify//GEN-BEGIN:variables
+  private javax.swing.JRadioButton BtnClient;
+  private javax.swing.JButton BtnConnect;
+  private javax.swing.ButtonGroup BtnGrpMode;
+  private javax.swing.JRadioButton BtnServer;
+  private javax.swing.JDialog dialogChooseMode;
+  private javax.swing.JPanel jPanel1;
+  private javax.swing.JScrollPane jScrollPane2;
+  private javax.swing.JLabel lblMode;
+  private javax.swing.JTextField tfNachricht;
+  private javax.swing.JTextArea txtChat;
+  // End of variables declaration//GEN-END:variables
+
+  /**
+   * @return the BtnClient
+   */
+  public javax.swing.JRadioButton getBtnClient()
+  {
+    return BtnClient;
+  }
+
+  /**
+   * @return the BtnConnect
+   */
+  public javax.swing.JButton getBtnConnect()
+  {
+    return BtnConnect;
+  }
+
+  /**
+   * @return the BtnGrpMode
+   */
+  public javax.swing.ButtonGroup getBtnGrpMode()
+  {
+    return BtnGrpMode;
+  }
+
+  /**
+   * @return the BtnServer
+   */
+  public javax.swing.JRadioButton getBtnServer()
+  {
+    return BtnServer;
+  }
+
+  /**
+   * @return the jDialog1
+   */
+  public javax.swing.JDialog getjDialog1()
+  {
+    return dialogChooseMode;
+  }
+
+  /**
+   * @return the tfNachricht
+   */
+  public javax.swing.JTextField getTfNachricht()
+  {
+    return tfNachricht;
+  }
+
+  /**
+   * @return the txtChat
+   */
+  public javax.swing.JTextArea getTxtChat()
+  {
+    return txtChat;
+  }
+}

src/config.properties

+log.level=INFO
+
+log.directory=../Aufgabe7_bandit
+log.filename=ohmLog
+
+# Beispiel f\u00fcr verschiedene Level f\u00fcr unterschiedliche Pakete
+# log.level.bandit.Zahlengenerator=FINE
+# log.level.bandit.Model.Wuerfel=WARNING