Program for QUEUES USING DOUBLE LINKED LIST

#include<iostream>
#include<iomanip>
using namespace std;
class node
{
 public:
    int info;
    node *next;
    node *prev;
};
class Queue
{
    public:
  node *rear;
        node *front;
       Queue()
       {
     rear = NULL;
   front = NULL;
   cout<<"\n\t\tQUEUES USING DOUBLE LINKED LIST\n";
       }
        void enque();
        void deque();
        void display();
};
void Queue::enque()
{
    int data;
    node *temp = new node;
    cout<<"Enter the data to enque: ";
    cin>>data;
    temp->info = data;
    temp->next = NULL;
 temp->prev=NULL;
    if(front == NULL)
 {
        front = temp;
 }
 else
 {
        rear->next = temp;
  temp->prev=rear;
 }
    rear = temp;
}
void Queue::deque()
{
    node *temp = new node;
    if(front == NULL)
 {
        cout<<"\nQueue is Emtpty\n";
 }
 else if(front->next==NULL)
 {
  temp = front;
  cout<<"\nThe data REMOVED is "<<front->info<<"\n";
  front=NULL;
 }
 else
 {
        temp = front;
        front = front->next;
        front->prev=NULL;
        cout<<"\nThe data REMOVED is "<<temp->info<<"\n";
        delete temp;
    }
}
void Queue::display()
{
    node *p = new node;
    p = front;
    if(front == NULL)
 {
        cout<<"\nNothing to Display\n";
    }
 else
 {
  cout<<"\nTHE ELEMENTS ARE : ";
        while(p!=NULL)
  {
            cout<<p->info<<" ";
            p = p->next;
        }
    }
    cout<<"\n";
}

int main()
{
    Queue queue;
    int choice;
    while(1)
 {
        cout<<"\n1.Enqueue\n2. Dequeue\n3. Display\n 4.Quit";
        cout<<"\nEnter your choice: ";
        cin>>choice;
        switch(choice)
  {
            case 1:
                queue.enque();
                break;
            case 2:
                queue.deque();
                break;
            case 3:
                queue.display();
                break;
            case 4:
                exit(0);
                break;
            default:
                cout<<"\nInvalid Input. Try again! \n";
                break;
        }
    }
    return 0;
}