package com.m0226.basic;
public class Queue {
private LinkedList elementData=new LinkedList();
public void enQueue(Object o){
elementData.addLast(o);
}
public Object deQueue(){
Object first=elementData.removeFirst();
return first;
}
public boolean isEmpty(){
return elementData.size()<=0;
}
public int size(){
return elementData.size();
}
}