package TestCollection;
;
public class Queue {
private LinkedList list=new LinkedList();
public void enQueue(Object o){
list.addLast ( o) ;//������add(index, o)����
}
public Object deQueue(){
Object o=list.get(1);
list.remove(1);
return o;
}
public boolean isEmpty(){
if(list.size()!=0){
return false;}else
return true;
}
public int size(){
return list.size();
}
public static void main(String[] args) {
Queue q=new Queue();
q.enQueue("1");
q.enQueue("2");
q.enQueue("3");
System.out.println(q.size());
Object o=q.deQueue();
System.out.println(o);
System.out.println(q.size());
}
}