Loading all images from Jar include the directory structure.

Question

Hi I would like to puts all my images in a Jar. is it going to improve the loading speed?
I have a ImageLibary that load all the images to a hashtable and access each image by their path and filename.
I only have to input the image root directory and it will load all the images including sub-directory. If I decide to put these directories in a JAR. is this still going to work? Do all the class files has to be in the same JAR?
use getResourse()?
My current ImageLibary is like this:
public class ImagesLibary extends Component
private Hashtable imagesBank;
private Vector imagesName;
private MediaTracker tracker;
public ImagesLibary()
imagesBank = new Hashtable();
imagesName = new Vector();
tracker= new MediaTracker(this);
loadImageFile("./images");
for(int i=0; i<imagesName.size(); i++)
String key = (String)imagesName.get(i);
Image image = getToolkit().getImage(key);
tracker.addImage(image, 0);
try
tracker.waitForID(0);
catch (InterruptedException e)
System.err.println("Loading image: " + key + " fails. " + e);
imagesBank.put(key,image);
System.out.println("Loaded: " + key);
System.out.println("Total of " + imagesBank.size() + " images.");
private void loadImageFile(String dir)
File imageDir = new File(dir);
File temp[] = imageDir.listFiles();
for(int i=0; i<temp.length;i++)
if (temp.isDirectory())
loadImageFile(temp[i].getPath());
else
imagesName.add(temp[i].getPath());

Answer 1

is it going to improve the loading speed?depends :)
is this still going to work?some ajustments are needed... but thats done quickly.
Do all the class files has to be in the same JAR?no. but it's easier to handle.
use getResourse()?yes. don't know if u have to. but i do it this way :)
inside an application:
URL keyboardImagePath;
keyboardImagePath = (new Object()).getClass().getResource("/gfx/keyboard.gif");
Image kb=getToolkit().getImage(keyboardImagePath);inside an applet:
URL path = (new Object()).getClass().getResource( "/icons/right.gif" );
// now make the icon getting the gif from the url
ImageIcon = new ImageIcon( path );inside a hybrid:
URL keyboardImagePath;
keyboardImagePath = (new Object()).getClass().getResource("/gfx/keyboard.gif");
System.out.println("<-(application)load:"+keyboardImagePath); //if u wanna c what happens
if(keyboardImagePath==null)
     keyboardImagePath=selfRef.getClass().getResource("/gfx/keyboard.gif");
     System.out.println("<-(applet)load:"+keyboardImagePath); //if u wanna c what happens
Image kb=getToolkit().getImage(keyboardImagePath);hope that was helpfull :)