my ugly chatromm

src/gui/ChatArea.java

+package gui;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class ChatArea extends JTextArea {
+    private static final int ROWS = 10, COLUMNS = 30;
+    public ChatArea() {
+        super(ROWS, COLUMNS);
+        this.setEditable(false);
+        this.setLineWrap(true);
+    }
+    public void addMessage (String user,String text){
+        super.append(user + " : ");
+        super.append(text);
+    }
+}

src/gui/ChatRoomGUI.java

+package gui;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class ChatRoomGUI extends JFrame {
+    private final String WINDOWS_TITLE = "AUT Chat Room";
+    private final int WIDTH = 500, HEIGHT = 500;
+    private final int X = 100, Y = 100;
+    ChatArea chatBox = new ChatArea();
+    MessageArea messageBox = new MessageArea();
+    ParticipantsArea participantsbox = new ParticipantsArea();
+    public ChatRoomGUI()  throws HeadlessException {
+        super();
+        this.setTitle(WINDOWS_TITLE);
+        this.setLayout(new BorderLayout());
+        this.add(new JScrollPane(chatBox), BorderLayout.CENTER);
+        this.add(new JScrollPane(messageBox), BorderLayout.PAGE_END);
+        this.add(new JScrollPane(participantsbox), BorderLayout.WEST);
+
+        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        this.setSize(WIDTH, HEIGHT);
+        this.setLocation(X, Y);
+        this.setVisible(true);
+    }
+    public void addUser(String user){
+        participantsbox.addUser(user);
+    }
+    public void addMessage (String user,String text){
+        chatBox.addMessage(user,text);
+    }
+    public static void main (String args[]){
+        ChatRoomGUI chatroom = new ChatRoomGUI();
+    }
+}
+
+

src/gui/MessageArea.java

+package gui;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class MessageArea extends JPanel{
+    public MessageArea(){
+        super();
+        this.setLayout(new GridLayout(1,2));
+        JTextField textField = new JTextField();
+        add(textField);
+        JButton btn = new JButton("Na Be Intellij");
+        add(btn);
+        setVisible(true);
+    }
+}

src/gui/ParticipantsArea.java

+package gui;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class ParticipantsArea extends JPanel{
+    public DefaultListModel<String> list = new DefaultListModel<>();
+    public ParticipantsArea(){
+        super();
+        this.setLayout(new GridLayout(2,1));
+        JLabel label = new JLabel("Online User");
+        add(label);
+        JList<String> listbox = new JList<>(list);
+        list.addElement("mamal");
+        list.addElement("pasha");
+        list.addElement("hossein");
+        add(listbox);
+        setVisible(true);
+    }
+    public void addUser (String user){
+        list.addElement(user);
+    }
+}

src/gui/UsernameFrame.java

+package gui;
+
+import javax.swing.*;
+import java.awt.*;
+public class UsernameFrame extends JFrame {
+    private static final String BTN_TXT = " Start Chatting ...";
+    private static final String LABEL_TXT = " Choose Your UserName ";
+    private static final int WIDTH = 300, HEIGHT = 100;
+    JTextField textField;
+    JButton btn;
+    public UsernameFrame() throws HeadlessException {
+        super();
+        this.setLayout(new BorderLayout());
+        JLabel label = new JLabel("Choose Your UserName");
+        add(label, BorderLayout.PAGE_START);
+        textField = new JTextField();
+        add(textField, BorderLayout.CENTER);
+        btn = new JButton("Na Be Intellij");
+        add(btn, BorderLayout.PAGE_END);
+        setSize(WIDTH, HEIGHT);
+        setVisible(true);
+    }
+    public static void main(String args []){
+        UsernameFrame user = new UsernameFrame();
+    }
+}
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