package com.coding.basic;
public class Queue {
private LinkedList elementData = new LinkedList();
public void enQueue(Object o){
elementData.add(o);;
}
public Object deQueue() throws Exception{
if(isEmpty())
{
throw new Exception("Queue deQueue error");
}
return elementData.removeFirst();
}
public boolean isEmpty(){
return elementData.size()>0;
}
public int size(){
return elementData.size();
}
}