package week01.datastructure;
public class Queue {
private LinkedList linkedList = new LinkedList();
private int size = 0;
public void enQueue(Object o){
linkedList.add(o);
size++;
}
public Object deQueue(){
size--;
return linkedList.removeFirst();
}
public boolean isEmpty(){
return linkedList.size() == 0;
}
public int size(){
return size;
}
}