How applet use external resource?

[mryyzx]

I use jtree to show a tree structure to the user. Now I want to add some modification when user clicked the node. So I need to upload a gif picture to my website. When user clicked the node, the tree icon will replaced by the new gif picture.

But how I can implement this? I cannot get the resource from the applet. I have already jar the class files and the picture middle.gif in one jar file. But how I access the middle.gif in the jar file from the applet?

[YuLimin]

u can

openFolder = new ImageIcon("button_lit.jpg");
closedFolder = new ImageIcon("button.jpg");
leafIcon = new ImageIcon("leaf.gif");

JTree tree = new JTree();
JScrollPane scrollPane = new JScrollPane(tree);
DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();

renderer.setClosedIcon(closedFolder);
renderer.setOpenIcon(openFolder);
renderer.setLeafIcon(leafIcon);

tree.setCellRenderer(renderer);
tree.setEditable(true);
getContentPane().add(scrollPane);