请问如何为树（JTree）的节点设置图标？

[RichardKong]

请问如何为树（JTree）的节点设置图标？

[lilylamb]

我也想知道

[cbhyk]

tree.setCellRenderer(new MyRenderer());
...
class MyRenderer extends DefaultTreeCellRenderer {
ImageIcon leafIcon;

public MyRenderer() {
leafIcon = new ImageIcon("images/leaf.gif");
}

public Component getTreeCellRendererComponent(
JTree tree,
Object value,
boolean sel,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus) {

super.getTreeCellRendererComponent(
tree, value, sel,
expanded, leaf, row,
hasFocus);
if (leaf)
{
setIcon(leafIcon);
}
return this;
}
}