Retrieve image and display

Question

Hello frenz..
can someone figure up this problem..? huhu I`m newbie in JAVA programiing try to polish my programming skill...
character a to character z have their own picture.TGA
if i put t picture1.tga - picture36.tga inside a folder?
how to retrieve it ?
example :
character a = picture1.tga (this is a cat image)
character b = picture2.tga (this is a dog image)
when i enter a message : ababa
the image display : cat dog cat dog cat ( those cat and dof is an image)

Answer 1

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.swing.*;
public class KeepingTrack extends JPanel implements ActionListener {
    BufferedImage[] images;
    String[] letters;
    String[] glyphs = new String[0];
    Random rand = new Random();
    JLabel label;
    KeepingTrack(BufferedImage[] images) {
        this.images = images;
        letters = "abcdefghijklmnop".split("(?<=[\\w])");
    public void actionPerformed(ActionEvent e) {
        int n = 5 + rand.nextInt(letters.length-4);
        glyphs = new String[n];
        String s = "";
        for(int j = 0; j < glyphs.length; j++) {
            glyphs[j] = letters[rand.nextInt(letters.length)];
            s += glyphs[j];
        // The glyphs array has been filled with the randomly
        // selected letters, ie, the "message has been entered".
        // Now, set the text in the label and draw the images
        // associated with the "message", viz, elements of the
        // glyphs array.
        label.setText(s);
        repaint();
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        int w = getWidth();
        int pad = 20;
        int n = glyphs.length;
        int cols = (w - 2*pad)/(images[0].getWidth() + pad);
        int rows = n/cols + ((n % cols > 0) ? 1 : 0);
        int x0 = pad;
        int y = pad;
        int x = x0;
        for(int j = 0; j < rows; j++) {
            for(int k = 0; k < cols; k++) {
                int m = j*cols + k;
                if(m > n-1) break;
                int index = getIndexFor(glyphs[m]);
                g.drawImage(images[index], x, y, this);
                x += pad + images[index].getWidth();
            x = x0;
            y += images[0].getHeight() + pad;
    private int getIndexFor(String s) {
        for(int j = 0; j < letters.length; j++) {
            if(s.equals(letters[j]))
                return j;
        return -1;
    private JPanel getTestPanel() {
        JButton button = new JButton("test");
        button.addActionListener(this);
        label = new JLabel();
        label.setHorizontalAlignment(JLabel.CENTER);
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(2,15,2,10);
        panel.add(button, gbc);
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        panel.add(label, gbc);
        return panel;
    public static void main(String[] args) throws IOException {
        String prefix = "images/geek/geek";
        String[] ids = {
            "-----", "-c---", "-cg--", "-cgh-", "-cght", "-cg-t",
            "-c-h-", "-c-ht", "-c--t", "--g--", "--gh-", "--ght",
            "--g-t", "---h-", "---ht", "----t"
        BufferedImage[] images = new BufferedImage[ids.length];
        for(int j = 0; j < images.length; j++) {
            String path = prefix + ids[j] + ".gif";
            images[j] = ImageIO.read(new File(path));
        KeepingTrack test = new KeepingTrack(images);
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(test);
        f.getContentPane().add(test.getTestPanel(), "Last");
        f.setSize(600,500);
        f.setLocation(200,50);
        f.setVisible(true);
}images found here:
http://java.sun.com/docs/books/tutorial/uiswing/examples/components/index.html