java数据结构-07栈

public class Stack<E> {
    private List<E> list = new ArrayList<>();//自己写的动态数组类跟接口类
    
    public void clear() {
        list.clear();
    }
    
    public int size() {
        return list.size();
    }

    public boolean isEmpty() {
        return list.isEmpty();
    }

    public void push(E element) {
        list.add(element);
    }


    public E pop() {
        return list.remove(list.size() - 1);
    }


    public E top() {
        return list.get(list.size() - 1);
    }
}