在JAVA聊天部分加上表情功能

[qq568257773]

import java.awt.*;
import javax.swing.*;

public class Chat_panel extends JPanel{

private static final long serialVersionUID = 1L;
String msgout="",msgin="";
TextArea jta=new TextArea("",15,30,TextArea.SCROLLBARS_VERTICAL_ONLY);
JTextField jtf=new JTextField();
JButton jb=new JButton("发送");

public Chat_panel(Listener listener){
setLayout(null);
jta.setBounds(0,0,293, 270);
jta.setBackground(Color.gray);
jta.setEditable(false);
jta.setForeground(Color.orange);
add(jta);
jtf.setBounds(0,270,233, 30);
add(jtf);
jtf.addActionListener(listener);
jb.addActionListener(listener);
jb.setBounds(233,270,60, 30);
add(jb);
setVisible(true);

}


}


怎么在此基础上添加？谢谢