package com.coding.basic.week01;
public class Queue {
private LinkedList list = new LinkedList();
//入队列
public void enQueue(Object o){
list.add(o);
}
//出队列
public Object deQueue(){
if(list.size() == 0) {
return null;
}
return list.removeFirst();
}
public boolean isEmpty(){
return list.size() == 0;
}
public int size(){
return list.size();
}
}