문자열을 웃는 얼굴로 대체하는 자바 스마일리

채팅 프로그램을 작성 중입니다. 사용자가 smiley (jbutton)를 클릭하면 텍스트 창에 인쇄되는 스마일이있는 모형 GUI를 디자인했습니다. 사용자가 ":)"를 입력하고 보낼 때 insertIcon () 메서드를 사용하여 문자열 대신 웃는 얼굴을 삽입하는 고급 기능을 추가했습니다. 내가 가진 문제는 여러 번이 아닌 한 번만 웃는 얼굴을 인쇄한다는 것입니다. 그래서 "Hi :) My name is Jack :)"를 입력하면 아이콘이 한 번만 삽입됩니다. 어떤 제안?

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

public class SmileyTesterGUI extends JFrame {

    JPanel main = new JPanel();
    JPanel south = new JPanel();
    JPanel messageCenter = new JPanel();
    JPanel smileysNorth = new JPanel();
    JTextField text;
    JTextPane tPane;
    Icon happy;
    Icon smile;
    Icon tongue;
    Icon veryHappy;
    Icon wink;
    Icon laugh;
    Icon sad;
    Icon verySad;
    Icon cry;

    public SmileyTesterGUI() {
        super("Smileys");
        add(main);
        main.setLayout(new BorderLayout());
        main.add(south, BorderLayout.SOUTH);
        south.setLayout(new BorderLayout());
        south.add(messageCenter, BorderLayout.CENTER);
        south.add(smileysNorth, BorderLayout.NORTH);

        // textpane panel
        tPane = new JTextPane();
        JScrollPane sPane = new JScrollPane(tPane);
        main.add(sPane);
        tPane.setEditable(false);

        // smileysPanel
        smileysNorth.setLayout(new GridLayout(1, 0));
        JButton smiley1 = new JButton();
        JButton smiley2 = new JButton();
        JButton smiley3 = new JButton();
        JButton smiley4 = new JButton();
        JButton smiley5 = new JButton();
        JButton smiley6 = new JButton();
        JButton smiley7 = new JButton();
        JButton smiley8 = new JButton();
        JButton smiley9 = new JButton();
        smileysNorth.add(smiley1);
        smileysNorth.add(smiley2);
        smileysNorth.add(smiley3);
        smileysNorth.add(smiley4);
        smileysNorth.add(smiley5);
        smileysNorth.add(smiley6);
        smileysNorth.add(smiley7);
        smileysNorth.add(smiley8);
        smileysNorth.add(smiley9);

        // set smileys(icon) to each button - pathed from personal directory
        happy = new ImageIcon(getClass().getResource("smileys/Smile1.png"));
        smiley1.setIcon(happy);
        smile = new ImageIcon(getClass().getResource("smileys/Smile2.png"));
        smiley2.setIcon(smile);
        tongue = new ImageIcon(getClass().getResource("smileys/Smile3.png"));
        smiley3.setIcon(tongue);
        veryHappy = new ImageIcon(getClass().getResource("smileys/Smile4.png"));
        smiley4.setIcon(veryHappy);
        wink = new ImageIcon(getClass().getResource("smileys/Smile5.png"));
        smiley5.setIcon(wink);
        laugh = new ImageIcon(getClass().getResource("smileys/Smile6.png"));
        smiley6.setIcon(laugh);
        sad = new ImageIcon(getClass().getResource("smileys/Smile7.png"));
        smiley7.setIcon(sad);
        verySad = new ImageIcon(getClass().getResource("smileys/Smile8.png"));
        smiley8.setIcon(verySad);
        cry = new ImageIcon(getClass().getResource("smileys/Smile9.png"));
        smiley9.setIcon(cry);

        // smileys print on the textpane

        smiley1.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile1.png")));
            }
        });
        smiley2.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile2.png")));
            }
        });
        smiley3.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile3.png")));
            }
        });
        smiley4.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile4.png")));
            }
        });
        smiley5.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile5.png")));
            }
        });
        smiley6.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile6.png")));
            }
        });
        smiley7.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile7.png")));
            }
        });
        smiley8.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile8.png")));
            }
        });
        smiley9.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                tPane.insertIcon(new ImageIcon(getClass().getResource(
                        "smileys/Smile9.png")));
            }
        });

        // messagePanel
        messageCenter.setLayout(new BorderLayout());
        text = new JTextField();
        JButton send = new JButton("Send");
        messageCenter.add(text);
        messageCenter.add(send, BorderLayout.EAST);

        text.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                sendMessage();
            }
        });

        send.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                sendMessage();
            }
        });

        setLocation(500, 0);
        setSize(600, 250);
    }

    public void sendMessage() {
        String a = text.getText();
        // tPane.setText(a);
        // tPane.getText();

        if (a.equals(":D")) {
            tPane.insertIcon(veryHappy);
        } else if (a.equals(":)")) {
            tPane.insertIcon(smile);
        } else if (a.equals(":(")) {
            tPane.insertIcon(sad);
        } else if (a.equalsIgnoreCase(":P")) {
            tPane.insertIcon(tongue);
        } else if (a.equals(";)")) {
            tPane.insertIcon(wink);
        }

        text.setText(null);
        text.requestFocus();

    }


    public static void main(String[] args) {
        new SmileyTesterGUI().setVisible(true);

    }

}