java设计模式，部分-整体模式

package com.dasenlin.composite;import java.util.Enumeration;import java.util.Vector;/** * 组合模式有时又叫部分-整体模式在处理类似树形结构的问题时比较方便. * 使用场景：将多个对象组合在一起进行操作，常用于表示树形结构中，例如二叉树，数等。 * @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;    }    //添加孩子节点    public void add(TreeNode node){        children.add(node);    }    //删除孩子节点    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);    }}