How to set the caption text of a node with user object.

Question

This is my problem for two days below is my sample code. I need to associate object with the tree node but the node is displaying the toString() value of the object. It should display the text I wanna see.
Please help. I was from the JSP world so Swing is quiet new to me, only this year I got again a project in swing.
TreeMap treemap = new TreeMap();
treemap.put("3","3");
treemap.put("5","4");
treemap.put("4","4");
treemap.put("1","1");
treemap.put("2","2");
DefaultMutableTreeNode nodetable = new DefaultMutableTreeNode(treemap,true);
DefaultTreeModel model = (DefaultTreeModel)jtree.getModel();
model.insertNodeInto(nodetable, nodetop,nodetop.getChildCount());

Answer 1

I have created a subclass of DefaultMutableTreeNode, I just have one question with my Default Constructor, is it correct? Suppose to be it should be super(Object userObject ,boolean allowChildren)?
But when I do that it does not compile.
Please correct me if I am wrong. I suspect my contructor inside code super() is not enough the parameters got lost. (btw) i will give you the dukes, please just verify my code.
Thanks.
class MyDefaultMutableTreeNode extends DefaultMutableTreeNode{
public String caption="";
public MyDefaultMutableTreeNode(Object userObject ,boolean allowChildren){
super();
public void setCaptionString(String str){
caption = str;
public String toString(){
return caption;
}