在JTree中为DefaultMutableTreeNode分配唯一ID? [英] Assign unique ID to a DefaultMutableTreeNode in a JTree?

问题描述

我有一个Jtree，可以向其中添加新的Node.我需要为每个新节点分配一个唯一的ID. 我当时在考虑扩展DefaultMutableTreeNode类，但是我猜想它没有用，或者我做错了.

I have a Jtree that I can add new Nodes to. I need to assign a unique ID to each new node. I was thinking of extending the DefaultMutableTreeNode Class but I guess it didn't work or I did it wrong.

所以，我该怎么做.一个例子会很好.谢谢.

So, how can I do this. An example would be nice. Thanks.

推荐答案

好，我弄清楚了，它起作用了:) 我引爆了DefaultMutableTreeNode:

OK I figured it out and it WORKS :) I extednded DefaultMutableTreeNode:

 public class MyTreeNode extends DefaultMutableTreeNode {

    public int ID;

    public void setID(int ID) {
        this.ID = ID;
    }

    public MyTreeNode(String title) {
        setUserObject(title);
    }
}

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