java設計模式，部分-整體模式

package com.dasenlin.composite;

import java.util.Enumeration;
import java.util.Vector;

/**
 * 組合模式有時又叫部分-整體模式在處理類似樹形結構的問題時比較友善.
 * 使用場景：将多個對象組合在一起進行操作，常用于表示樹形結構中，例如二叉樹，數等。
 * @author Administrator
 *
 */
public class TreeNode {
    private String name;
    private TreeNode parent;
    private Vector<TreeNode> children =new Vector<TreeNode>();

    public TreeNode(String name) {
        super();
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public TreeNode getParent() {
        return parent;
    }

    public void setParent(TreeNode parent) {
        this.parent = parent;
    }
    //添加孩子節點
    public void add(TreeNode node){
        children.add(node);
    }
    //删除孩子節點
    public void remove(TreeNode node){
        children.remove(node);
    }
    public Enumeration<TreeNode>getChildren(){
        return children.elements();
    }
    //ceshi
    public static void main(String[] args) {  
        Tree tree = new Tree("A");  
        TreeNode nodeB = new TreeNode("B");  
        TreeNode nodeC = new TreeNode("C");  

        nodeB.add(nodeC);  
        tree.root.add(nodeB);  
        System.out.println("build the tree finished!");  
    }  
}
class Tree{
    TreeNode root=null;
    public Tree(String name){
        root =new TreeNode(name);
    }
}