working with queue

[becky007]

hi,
im working with the queue class but not allowed 2 use the collections namespace, ok thats fine. paitent is the name for objects i want to queue. heres my paitent class

public class paitent
        {
            private string name;
            private string NHSW;
            private paitent next;
        }
        public string name
        {
            get { return name; }
            set { name value; }
        }
        public string NHSNnumber
        {
            get {return NHSN;}
            set { NHSN value; }
        }
        public paitent next
        {
            ///////////// here i want to combine name and NHSNnumber\\\\\\\\\\\
        }

im thinking i need a for loop. does any one know of a good web page where i can see some
queues to help.

any suggestions would be awesome, thanks

[Momerath]

Your queue class should be independent of your patient class. A patient doesn't have a Queue, a Queue contains a patient.

What does a queue need? A way to add members to the queue, a way to remove members from the queue and a way to see if there is anyone in the queue. Implement those methods and you'll have your Queue class.

[ddanbe]

Use the generic Queue type available in .NET
Something like:

Queue<patient> PatientsWaiting = new Queue<patient>();
patient P = new patient();
P.Name = "Smith";
PatientsWaiting.Enqueue(P);

[Momerath]

Use the generic Queue type available in .NET

You didn't read the original problem, i.e. the line that says "I'm not allowed to use the collections namespace".

[ddanbe]

Yes, I know, my bad.
I was in fact referring to your answer, to separate the patient class from the Queue class. Thought mayby an small snippet on how it can be done, might help.

[becky007]

thanks for responding fellas. i have the paitent class sorted and im sure it will work. i was just hoping someone had came across a web page, but ill see how we go

[becky007]

so im just going to use stack with my queue. the only thing im having problems with is with enqueue.im tryng to gt new patients on the stack,iv tried a few ways to do it but same errors. i cant see any other problems other than that, but if there are let me know and ill debug. thanks heaps guys

public class patient
        {
            private string name;
            private string NHSN;
            private string urgency;

            private patient next()
            {}
            private patient next(string name, string NHSN, string urgency)
            {
                name = name;
                NHSN = NHSNnumber;
                urgency = urgency;
        }
        public string name
        {
            get { return name; }
            set { name value; }
        }
        public string NHSNnumber
        {
            get {return NHSN;}
            set { NHSN value; }
        }
            public string urgency
            { 
                get {return urgency;}
                set {urgency value;}
            }
      }
        public class Queue
        {
            private patient first;
            private patient last;
            public Queue patientqueue = new Queue();
            public Stack patientstack = new Stack();
                }
             public void enqueue(patient);////////////here it is////////////////////
                 
        //static void Main(string[] args)
        {
            if(TextBox3.Text == "U")
            {
            patient U = new patient(textBox1.Text + textBox2.Text);
            }  
           if(TextBox3.Text == "N")
            {
            patient N = new patient(textBox1.Text + textBox2.Text);
            }
            Queue queue = new Queue();
            Queue.patientqueue.enqueue(U);
            Queue.patientqueue.enqueue(N);
            Queue.enqueue(Queue.patientqueue);
             }
            public patient dequeue();
              {
            patient newpatient = new patient();
            patient patientnext = new patient(); // next  in line examine
            
            while (patientp.Count != 0)
            {

    if (patientstack.Count != 0)
    {
      if (patientp.Count > 0) 
        {
          patientnext = (patient)patientp.Peek(); 
        }
        if (patientnext.urgency == "U")
        { 
         newpatient = (patient)patientp.Dequeue();
         listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name);
        if (patientnext.urgency == "N")
        { 
            newpatient = (patient)patientnext.Pop();
           listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name);
        }
      }
    if (patientnext.Count == 0)
          {
            newpatient = (patient)patientp.Dequeue();
       
            if (patientp.Count > 0)
            { 
                patientnext = (patient)patientp.Peek();
            }
            if (newpatient.urgency == "U")
            {
                listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name);
            }
            if ((newpatient.urgency == "N") && (patientnext.urgency == "N"))
            {
                listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name);
            }
            if ((newpatient.urgency == "N") && 
               (patientnext.urgency == "U"))
            {
                patientnext.Push(newpatient);
                listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), patientnext.Count.ToString());
                listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name + NHSN);
            
                // get next
              newpatient = (patient)newpatient.Dequeue();
              listBox1.ToString((textbox1.Text + textBox2.Text + textBox3.Text), newpatient.name);                
            }
               }
              public int length();
              {
              new length = new Count;  
               }
               public bool isEmpty();

               if (enqueue.Count < 0)
                {
                  isEmpty == true;
                }    
             }
       public void button1_Click(object sender,EventArgs e)
        {
        if(textBox1.Text.Trim() != patientp.isEmpty)
        {
            patientp.Enqueue(textBox1.Text.Trim());
            listBox1.Items.Insert(listBox1.Items.length,
            "Added patient: " + textBox1.Text.Trim() + " At " + DateTime.Now.ToString());
        }
        else
        {
            listBox1.show("Empty Value Cannot be Added","QueueDemo");
        }
    }
    public void button2_Click(object sender, EventArgs e)
    {
        try
        {
           listBox1.show("Removed patient "  + 

            patientp.Dequeue().ToString());
            listBox1.Items.RemoveAt(0);
        }
        catch(Exception ex)
        {
            listBox1.show("Error: " + ex.Message); 
        }
public void button3_Click(object sender, EventArgs e)
{
    patient newpatient = new patient();
    Queue copyofpatientp = new Queue();
    copyofpaitenp = (Queue)patientp.Clone();
    listBox1.WriteLine(" ");
    listBox1.Show("View the queue using a copy");
    do
    {
       tempCustomer = (BankCustomer)copyoflocalQueue.Dequeue();
        listbox1.Items.add("Name: " + newpatient.name + ",number: " + newpatient.NHSN + 
                          ",  urgency: " + 
                          newpatient.urgency.ToString() + 
    } while (copyofpatientp.Count != 0);
}
      static void main()
    {
        Application.Run(new patientp());
    }