1 /*
2 *需求：请用LinkedList模拟栈数据结构的集合，并测试
3 *创建一个类将Linked中的方法封装
4 */
5 public class Demo4_LinkedList {
6 public static void main(String[] args) {
7 Stack stack = new Stack();
8 stack.in("a");
9 stack.in("b");
10 stack.in("c");
11 stack.in("d");
12 while (!stack.isEmpty()) {
13 System.out.println(stack.out());
14 }
15 }
16 }
1 import java.util.LinkedList;
2
3 public class Stack {
4 @SuppressWarnings("rawtypes")
5 private LinkedList list = new LinkedList();
6
7 @SuppressWarnings("unchecked")
8 public void in(Object obj) {// 模拟进栈
9 list.addLast(obj);
10 }
11
12 public Object out() {// 模拟出栈
13 return list.removeLast();
14 }
15
16 public boolean isEmpty() {// 判断是否为空
17 return list.isEmpty();
18 }
