Adding JTextFields on button click

Question

I've been at this for a while and I feel like I'm almost there,

I'm trying to add TextFields to a JPanel at the click of a button, the Jpanel may or may not already have JTextFields in it.

At the moment the new JTextFields appear, but only as lines and if there are already JTextFields there they are painted over them.

I'm nearing the end of my project and really appreciate any help on this.

public class CDPopup extends JPanel implements ActionListener {

private JLabel artist, songName, songLength, songNumber;
private JTextField artistTBox;
private JButton addSong, addAlbum, update;
private DigiProduct p;
private Border space = (Border) BorderFactory.createEmptyBorder(10, 10, 10,10);
private Border line = (Border) BorderFactory.createLineBorder(Color.black);
private Border border = BorderFactory.createCompoundBorder(space, line);

private Font font = new Font("Verdana", Font.PLAIN, 20);
private GridBagConstraints gc = new GridBagConstraints();

private ProdDialog prodDialog;

private JTextField song9, song10, song11, song12, song13, song8, song7, song6, song5, song4, song1, song2, song3,
length9, length10, length11, length12, length13, length8, length7, length6, length5, length4, length1, length2,
length3;

JTextField[] digiProdDetailBx = { song1 = new JTextField(),
        song2 = new JTextField(), song3 = new JTextField(),
        song4 = new JTextField(), song5 = new JTextField(),
        song6 = new JTextField(), song7 = new JTextField(),
        song8 = new JTextField(), song9 = new JTextField(),
        song10 = new JTextField(), song11 = new JTextField(),
        song12 = new JTextField(), song13 = new JTextField()};

JTextField[] digiProdDetailBx2 = { length1 = new JTextField(),
        length2 = new JTextField(), length3 = new JTextField(),
        length4 = new JTextField(), length5 = new JTextField(),
        length6 = new JTextField(), length7 = new JTextField(),
        length8 = new JTextField(), length9 = new JTextField(),
        length10 = new JTextField(), length11 = new JTextField(),
        length12 = new JTextField(), length13 = new JTextField()};

private JLabel[] digiProdDetailLb;

private DigiProductList digiProductList;

private ArrayList<Song> alist = new  ArrayList<Song>();



public CDPopup(DigiProduct p, DigiProductList digiProductList, ProdDialog  prodDialog) {




    this.prodDialog = prodDialog;
    this.digiProductList = digiProductList;
    this.setName("cd");
    this.p = p;
    this.setLayout(new BorderLayout());
    if(p.getAlbum().getSongList().size() >= 15)
    {
        this.setSize(690, 600);
    }
    else if(p.getAlbum().getSongList().size() < 11)
    {
        this.setSize(690, 410);
    }
    else
    {
        this.setSize(690, 490);
    }
    JPanel top = new JPanel(new GridBagLayout());
    this.setBorder(new TitledBorder("CD"));



    addFields( p.getAlbum().getSongList().size(), false);



    JPanel detailsPanel = new JPanel(new BorderLayout());
    detailsPanel.setPreferredSize(new Dimension(240, 80));
    this.add(detailsPanel, BorderLayout.WEST);

    JPanel details = new JPanel(new GridBagLayout());
    details.setBorder(border);
    details.setPreferredSize(new Dimension(150, 130));
    detailsPanel.add(details, BorderLayout.NORTH);

    JPanel spacer = new JPanel();
    spacer.setPreferredSize(new Dimension(200, 100));
    detailsPanel.add(spacer, BorderLayout.SOUTH);


    gc.gridx = 0;
    gc.gridy = 0;
    artist = new JLabel(" Artist");
    details.add(artist, gc);

    gc.gridx = 0;
    gc.gridy = 1;
    artistTBox = new JTextField(10);

    details.add(artistTBox, gc);



    JPanel bottom = new JPanel(new FlowLayout());
    this.add(bottom, BorderLayout.SOUTH);

    addSong = new JButton("Add Song");
    addSong.setPreferredSize(new Dimension(120, 30));
    addSong.addActionListener(this);
    bottom.add(addSong);

    update = new JButton("Update");
    update.setPreferredSize(new Dimension(120, 30));
    update.addActionListener(this);
    bottom.add(update);


    addAlbum = new JButton("Add Album");
    addAlbum.setPreferredSize(new Dimension(120, 30));
    addAlbum.addActionListener(this);
    bottom.add(addAlbum);
    this.setVisible(true);



}



public void addFields(int size, boolean newSong)
{

    JPanel songs = new JPanel(new GridBagLayout());
    songs.setPreferredSize(new Dimension(380, 200));
    songs.setBorder(border);

    songNumber = new JLabel(" No.");
    songName = new JLabel("Song");
    songLength = new JLabel("Length");

    JLabel[] digiProdDetailLb = new JLabel[size];
    if(newSong == true)
    {
        JTextField[] digiProdDetailBx = new JTextField[size];
        JTextField[] digiProdDetailBx2 = new JTextField[size];
    }

    for (int i = 0; i < size; i++) {

        int num = i +1;

        if (i == 0) {
            gc.gridx = 0;
            gc.gridy = 0;
            gc.anchor = GridBagConstraints.WEST;
            songs.add(songNumber, gc);
        }

        gc.gridx = 0;
        gc.gridy = i + 1;
        gc.gridwidth = 1;
        gc.gridheight = 1;
        gc.weighty = 0.0;
        gc.weightx = 2.0;
        gc.anchor = GridBagConstraints.WEST;
        digiProdDetailLb[i] = new JLabel(" " + num);
        digiProdDetailLb[i].setFont(font);
        songs.add(digiProdDetailLb[i], gc);

        if (i == 0) {
            gc.gridx = 1;
            gc.gridy = 0;
            songs.add(songName, gc);
        }
        gc.gridx = 1;
        gc.gridy = i + 1;
        gc.gridwidth = 1;
        gc.gridheight = 1;
        gc.weighty = 0.0;
        gc.weightx = 2.0;
        gc.gridwidth = 2;
        if(newSong == true)
        {
            digiProdDetailBx[i] = new JTextField(100);
        }
        else
        {
        digiProdDetailBx[i] = new JTextField(p.getAlbum().getSongList().get(i).getSong_name());
        }
        digiProdDetailBx[i].setPreferredSize(new Dimension(250, 20));
        songs.add(digiProdDetailBx[i], gc);

        if (i == 0) {
            gc.gridx = 3;
            gc.gridy = 0;
            songs.add(songLength, gc);
        }
        gc.gridx = 3;
        gc.gridy = i + 1;
        gc.gridwidth = 1;
        gc.gridheight = 1;
        gc.weighty = 0.0;
        gc.weightx = 2.0;
        gc.gridwidth = 2;
        if(newSong == true)
        {
            digiProdDetailBx2[i] = new JTextField(100);
        }
        else
        {
        digiProdDetailBx2[i] = new  JTextField(p.getAlbum().getSongList().get(i).getSong_length());
        }
        digiProdDetailBx2[i].setPreferredSize(new Dimension(50, 20));
        songs.add(digiProdDetailBx2[i], gc);

    }
    ;

    this.add(songs, BorderLayout.EAST);


}

public void updateEmployee() {



        for(int i = 0 ; i < p.getAlbum().getSongList().size(); i++)
        {

            Song s = new        Song(p.getProd_id(),p.getAlbum().getSongList().get(i).getProd_id(), 
                    digiProdDetailBx[i].getText(),        digiProdDetailBx2[i].getText());
            alist.add(s);
        }



        CD c = new CD(alist);



        DigiProduct cd = new DigiProduct(p.getProd_id(),
                p.getProd_type(),
                p.getDigi_id(),
                p.getCd_id(),
                p.getArtist_id(),
                p.getAlbumName(),
                p.getCostPrice(),
                p.getSellPrice(),
                p.getCurrent_stock(),
                p.getAge_rating(),
                p.getGenre(),
                p.getPublisher(),
                p.getLength(),
                p.getArtist(),
                c
                );




    digiProductList.updateEmployee(cd);
    JOptionPane.showMessageDialog(null, "Album " + p.getAlbumName()
            + " Updated");

}





public JTextField[] getDigiProdDetailBx() {
    return digiProdDetailBx;
}


public void setDigiProdDetailBx(JTextField[] digiProdDetailBx) {
    this.digiProdDetailBx = digiProdDetailBx;
}


public JTextField[] getDigiProdDetailBx2() {
    return digiProdDetailBx2;
}


public void setDigiProdDetailBx2(JTextField[] digiProdDetailBx2) {
    this.digiProdDetailBx2 = digiProdDetailBx2;
}


public void actionPerformed(ActionEvent e) {

    if(e.getSource().equals(update))
    {

        updateEmployee();
    }
    else if(e.getSource().equals(addSong))
    {
        addFields(2, true);
        this.revalidate();
        this.repaint();
    }
    else if(e.getSource().equals(addAlbum))
    {
        prodDialog.addSongs();
    }

}

}

Answer 1

the text fields don't appear at the sizes I have set them

Suggest a size in the number of columns:

song1 = new JTextField(5)