java克隆容器后,容器内的对象相同

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package create;import java.util.ArrayList;import java.util.List;import java.util.Stack;import create.BiTree.Node;/** * java克隆容器后,容器内的对象相同 * @author root * */public class  T{static class Node{int value;Node left = null;Node right = null;public Node(int value){this.value = value;}}public static void main(String[] args) {// TODO Auto-generated method stubNode node = new Node(0);Stack<Node> a1 = new Stack<Node>();a1.add(node);Stack<Node> a2 = (Stack<Node>) a1.clone();if(a1.peek() == a2.peek()){System.out.println("克隆后对象相同!");}else{System.out.println("对象不相同!");}}}

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