使用 top() 和 pop() 方法来获取链表的元素

完整代码

import java.util.*;public class Main {private LinkedList list = new LinkedList();public void push(Object v) {list.addFirst(v);}public Object top() {return list.getFirst();}public Object pop() {return list.removeFirst();}public static void main(String[] args) {Main stack = new Main();for (int i = 30; i < 40; i++)stack.push(new Integer(i));System.out.println(stack.top());System.out.println(stack.pop());System.out.println(stack.pop());System.out.println(stack.pop());}
}

完整代码

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