Fastest and simplest way to display a 2D grid in Swing, using images?

Question

Hi,
I'm trying to draw a game-board in Swing. I've already figured out how to draw it in my teachers turtle-graphics thing, but I want to make my game a little prettier.
I've managed to draw the entire GUI in Swing, and it has full functionality, I'm just missing the "drawMap()" method that should display the game in the level-JPanel.
One of my friends at school already managed to do this, but he used -400- lines of code and two objects/classes. I hope there is a better way.
The turtle version of my code is like this:
     void turtle() {
          int width = game.getGrid()[0].length;
          int height = game.getGrid().length;
          STG.home(true);
          String url = null;
          STG.up();
          for (int y = 0; y < game.getGrid().length; y++) {
               for (int x = 0; x < game.getGrid()[y].length; x++) {
                    switch (game.getGrid()[y][x]) {
                    case WALL:
                         url = "/sokoban/icons/wall.png";               
                         break;
                    case EMPTY:
                         url = (game.getTargets()[y][x]) ? "/sokoban/icons/target.png" : "/sokoban/icons/tile.png"; // url = (boolean) ? iftrue dothis : elseiffalse dothis
                         break;
                    case MOVER:
                         url = (!game.getWinner()) ? "/sokoban/icons/mover.png" : "/sokoban/icons/happyMover.png";                         
                         break;
                    case CRATE:     
                         url = (!game.getTargets()[y][x]) ? "/sokoban/icons/crate.png" : "/sokoban/icons/crateOnTarget.png";
                         break;
                    default:
                         break;
                    STG.image(url, 30, 30, (width/2-x)+0.40, -height/2+y);
          }I'm pretty sure there has to be a similar way of doing this in Swing, without using hundreds of lines of code.
Here's a screen-shot so there's absolutely no confusion about what I'd like to achieve:
[http://img198.imageshack.us/img198/2815/40317025.png]
I want to draw the game-board in the JPanel titled 'Level: 1'.
Please point me in the right direction =)

Answer 1

Thanks. The values of getGrid and iIcon are correct.
I did make a working class that could draw up a map, what I'm having trouble with is implementing it in my GUI.
I'm pretty new to this, and I'm miles ahead of what I am supposed to be doing at this time.. I guess I'm in way over my head, but still, I think it's a lot of fun, and I want to finish :)
This is the working example
package sokoban1;
import java.awt.*;
import javax.swing.*;
public class DrawMap extends JFrame {
     private static final long serialVersionUID = 1L;
     ImageIcon tile           = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/tile.png");
     ImageIcon wall           = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/wall.png");
     ImageIcon target     = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/target.png");
     ImageIcon mover      = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/mover.png");
     ImageIcon happyMover      = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/happyMover.png");
     ImageIcon crate      = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/crate.png");
     ImageIcon crateOnTarget = new ImageIcon("C:/Users/David/Desktop/OOP/Workspace/ovinger/resources/sokoban/icons/crateOnTarget.png");
     char [][] testGrid = {{'#', '#', '#', '#', '#'}, {'#', ' ', ' ', ' ', '#'}, {'#', '$', '$', '$', '#'}, {'#', '@', '@', '@', '#'}, {'#', '#', '#', '#', '#'}};
     int height = testGrid.length;
     int width = testGrid[0].length;
     GridLayout sokobanMap = new GridLayout(height,width);
     final char WALL = '#' , EMPTY = ' ', MOVER = '@', CRATE = '$';
     public DrawMap() {}
     public void addComponentsToPane(final Container pane) {
          setResizable(false);
          final JPanel gamePanel = new JPanel();
          gamePanel.setLayout(sokobanMap);
          JPanel controls = new JPanel();
          controls.setLayout(new GridLayout(height ,width));
          ImageIcon iIcon = null;
          boolean b = true;
          for (int y = 0; y < height; y++) {
               for (int x = 0; x < width; x++) {
                    switch (testGrid[y][x]) {
                    case WALL:
                         iIcon = wall;               
                         break;
                    case EMPTY: // url = (boolean) ? ifTrue this : ifFalse this
                         iIcon = (b) ? target: tile;     //game.getTargets()[y][x]
                         break;
                    case MOVER:
                         iIcon = (b) ? happyMover : mover; //game.getWinner()
                         break;
                    case CRATE:     
                         iIcon = (b) ? crateOnTarget : crate; //game.getTargets()[y][x]
                         break;
                    gamePanel.add(new JLabel(iIcon));
          pane.add(gamePanel, BorderLayout.NORTH);
      * Create the GUI and show it.  For thread safety,
      * this method is invoked from the
      * event dispatch thread.
     public void draw() {
          //Schedule a job for the event dispatch thread:
          //creating and showing this application's GUI.
          javax.swing.SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    //Create and set up the window.
                    DrawMap sokoFrame = new DrawMap();
                    sokoFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    //Set up the content pane.
                    sokoFrame.addComponentsToPane(sokoFrame.getContentPane());
                    //Display the window.
                    sokoFrame.pack();
                    sokoFrame.setVisible(true);
}And this is my GUI [http://pastebin.com/RqprGWSy] (Well, NetBeans did most of the work, which might add to my confusion :p)
The gamePanel is probably added, since I can see its frame, or maybe I'm misunderstanding something. I'll take a closer look.
Thanks for all your help so far :)