bad graphic

src/ChatArea.java

+import javax.swing.*;
+import java.awt.*;
+
+public class ChatArea extends JTextArea {
+    private static final int rows = 10 , columns = 30;
+    private static String user = null;
+    private static String message = null;
+    public ChatArea() {
+        super(rows , columns);
+        this.setEditable(false);
+        this.setLineWrap(true);
+        this.setLayout(new BorderLayout());
+        JLabel user = new JLabel(this.user);
+        this.add(user , BorderLayout.LINE_START);
+        JLabel message = new JLabel(this.message);
+        this.add(message , BorderLayout.CENTER);
+    }
+    public void addMessage(String name , String message){
+        this.user = name;
+        this.message = message;
+    }
+}

src/ChatButton.java

+import javax.swing.*;
+
+public class ChatButton extends JButton {
+    private final String Text = "Send Massage";
+    public ChatButton() {
+        super();
+        this.setText(Text);
+    }
+}

src/ChatRoomGUI.java

+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;
+
+    public ChatRoomGUI() {
+        super();
+        this.setTitle(WINDOWS_TITLE);
+        this.setLayout(new BorderLayout());
+        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        this.setSize(WIDTH ,HEIGHT);
+        this.setLocation(x , y);
+        JTextArea jta = new JTextArea("UserName:");
+        jta.setEditable(true);
+        this.add(jta , BorderLayout.PAGE_START);
+        JButton jb = new JButton();
+        jb.setText("Confirm");
+        this.add(jb , BorderLayout.PAGE_END);
+        this.setVisible(true);
+    }
+
+}
+

src/chatText.java

+import javax.swing.*;
+
+public class chatText extends JTextArea {
+    public chatText(){
+        super();
+        this.setEditable(true);
+        this.setText("Type here...");
+    }
+}

src/frame1.java

+import javax.swing.*;
+import java.awt.*;
+
+public class frame1 extends JFrame {
+    private final String windows_label = "AUT Chat GUI";
+    private final int WIDTH = 500 , HEIGTH = 500;
+    private final int x = 600 , y = 100;
+    ChatArea jta;
+    ChatButton jb;
+    panel p1 = new panel();
+    ChatArea ca = new ChatArea();
+
+    panel2 p2 = new panel2();
+
+    public frame1() {
+        super();
+        this.setTitle(windows_label);
+        this.setLayout(new BorderLayout());
+        this.setSize(WIDTH , HEIGTH);
+        this.setLocation(x , y);
+        this.add(p1 , BorderLayout.PAGE_END);
+        this.add(ca , BorderLayout.LINE_END);
+        this.add(p2 , BorderLayout.LINE_START);
+        this.setVisible(true);
+    }
+}

src/lab10.java

+public class lab10 {
+    public static void main(String[] args) {
+        new ChatRoomGUI();
+        ChatArea ca = new ChatArea();
+        ca.addMessage("karim" , "salam be hame");
+        new frame1();
+
+    }
+}

src/panel.java

+import javax.swing.*;
+import java.awt.*;
+
+public class panel extends JPanel {
+    chatText ct = new chatText();
+    ChatButton cb = new ChatButton();
+    public panel() {
+        this.setLayout(new GridLayout(1 , 2));
+        this.add(ct);
+        this.add(cb);
+    }
+}

src/panel2.java

+import org.w3c.dom.Text;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class panel2 extends JPanel {
+    public panel2(){
+        this.setLayout(new GridLayout(20 , 1));
+        JLabel t1 = new JLabel("amir");
+        this.add(t1);
+        JLabel t2 = new JLabel("reza");
+        this.add(t2);
+        JLabel t3 = new JLabel("Morteza");
+        this.add(t3);
+
+    }
+}