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