package com.coding.basic;
public class Stack {
private LinkedList linkedList;
public Stack() {
linkedList = new LinkedList();
}
public void push(Object o) {
linkedList.add(o);
}
public Object pop() {
return linkedList.removeLast();
}
public Object peek() {
return linkedList.get(linkedList.size()-1);
}
public boolean isEmpty() {
return linkedList.size() == 0;
}
public int size() {
return linkedList.size();
}
}