package com.github.ZhoufeifeiJAVA.coding2017.basic;
public class Stack {
private MyLinkedList llist = null;
Stack(){
llist = new MyLinkedList();
}
public void push(Object o){
llist.add(o);
}
public Object pop(){
return llist.removeLast();
}
public Object peek(){
return llist.get(llist.size()-1);
}
public boolean isEmpty(){
if(llist.size() != 0)
return true;
else
return false;
}
public int size(){
return llist.size();
}
}