如何复制每个节点有两个以上的节点的树？ [英] How to copy a tree where each node has more that two leaves?

问题描述

我想在javafx中复制一个TreeItem。

I would like to copy a TreeItem in javafx.

树的每个节点都有两个以上的叶子。我想复制整棵树。我需要那棵树的深层副本。请帮我。谢谢

Each node of the tree has more than two leaves. I would like to copy the whole tree. I need a deep copy of that tree. Please help me. Thank you

我正在使用TreeView和TreeItem

I am working with TreeView and TreeItem

推荐答案

关于使用这种模式：

class Item {
    //....
}

TreeItem<Item> deepcopy(TreeItem<Item> item) {
    TreeItem<Item> copy = new TreeItem<Item>(item.getValue());
    for (TreeItem<Item> child : item.getChildren()) {
        copy.getChildren().add(deepcopy(child));
    }
    return copy;
}

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