Thread: **Struggling severly can any expert help**

I've been trying to get this done for days and the deadline is tomorrow...


The patients who are registered at the Smiley GoodDoctors practice can see any of the specialists. The practice keeps track of patients, doctors, and visits by patients to doctors in three text files. When the patient information system is booted up, it initializes itself by loading information from these files. Then, it present a menu based interface to the front desk staff. Staff can add patients, doctors, and record visits. They can also list visit information in various ways, and confirm appointments. When the system is shut down, all new doctors, patients, and visits are written into the text files so that they will be in the system.
The format for the patient file is as follows Fname|Lname|ssn|city|state
The format for the doctor file is Fname|Lname|npi|specialty
The format for the visit file is Patientssn|npi|date
Note: NPI refers to National Provider ID, which is a 10 digit number that identifies all health providers for insurance purposes. Sample data files are provided with the assignment, but you should add additional records for testing.
The functionality provided in the menu system should be as follows:  Add a patient  Add a doctor  Add a visit
 List all visits on a given date. The display should show patient name and ssn, provider name and specialty, and the date. The display should be sorted by provider name.
 List all visits for a patient. The display should show provider name, specialty, and the date. The display should be sorted by date.
 List all visits for a provider. The display should show patient name, ssn, and the date. The display should be sorted by patient last name.
 Confirm if a particular patient has or had an appointment with a particular doctor on a given date.

please help!

the Patient, doctor, and visit classes are completely finished I'm just struggling with the menu system and the menu itself and I have been lost completely

import java.io.*;
import java.util.*;
 
 
 
public class MenuSystem 
{
	private ArrayList<Patient> patients;
	private ArrayList<Visit> visits;
	private ArrayList<Doctor> physicians;	
 
	public MenuSystem()
{
	patients = new ArrayList<Patient>();
	visits = new ArrayList<Visit>();
	physicians = new ArrayList<Doctor>();
 
}	
 
	public void writePatient()
	{
 
		try {
			ObjectOutputStream os = new ObjectOutputStream(new FileOutputStream("Patients.txt"));
			os.writeObject(patients);
			os.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
 
	}
 
	public void readPatient()
	{
 
		try{
		ObjectInputStream is = new ObjectInputStream(new FileInputStream("Patients.txt"));
		Patient p = (Patient) is.readObject();
		System.out.print(p.toString());
		is.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch(ClassNotFoundException e){
			e.printStackTrace();
		}
 
 
	}
 
 
	public void addPatient(Patient name)
	 {
		patients.add(name);
 
	 }
 
	public void addPhysician(Doctor physician)
	{
		physicians.add(physician);
	}
 
	public void addVisit(Visit visit)
	{
		visits.add(visit);
	}
 
 
}

Please read the Announcement topic at the top of the sub-forum to learn how to post code in code or highlight tags and other useful info for newcomers. I believe you can edit your post to fix it.

fixed

This part of the assignment describes the menu and the items it should have:

" . . . it present a menu based interface to the front desk staff. Staff can add patients, doctors, and record visits. They can also list visit information in various ways, and confirm appointments. When the system is shut down, . . . "

Can you pick out the necessary menu items from that description and present them to the user to make a choice?

The best way for me to answer this question is that this is what the exact output is supposed to be:

Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
LP
Please enter the patient's ssn
333-33-3333
Visit date: 08/19/2013
Patient: Heather Smith 333-33-3333
Physician: Sarah Wasserman internal medicine
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
LD
Please enter the doctor's NPI
444
That doctor has not seen any patients
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
LD
Please enter the doctor's NPI
1233355589
Visit date: 11/23/2012
Patient: Janice Snealy 233-45-2222
Physician: Jeff Goldman pediatrics
Visit date: 11/25/2012
Patient: Janice Snealy 233-45-2222
Physician: Jeff Goldman pediatrics
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
D
Please enter the date in mm/dd/yy format
11/25/2012
Visit date: 11/25/2012
Patient: Janice Snealy 233-45-2222
Physician: Jeff Goldman pediatrics
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
AD
Enter first name 
Bernice
Enter last name 
Wasserman
Enter National Provider ID 
1233355555
Enter specialty 
oncology
Doctor added
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
AP
Enter first name 
Sally
Enter last name 
Timmsman
Enter social security number 
555-66-7878
Enter city 
Bedford
Enter state 
MA
Patient added
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
V
Enter National Provider ID 
1233355589
Enter patient ssn 
555-66-7878
Enter date of visit 
11/15/2013
Please enter a command
AP: Add a patient
AD: Add a doctor
V: Record a visit
LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date
Q: quit
>>>>>>
Q
Bye!

Now that you have that detail, what help do you need?

LP: List the visits for a given patient
LD: List the visits for a given doctor
D: List the visits on a given date

I cant seem to figure this out for my life, also for some stringtokenizer for splitting the files into delimiters

--- Update ---

this is my new code:

import java.io.*;
import java.util.*;
 
 
 
public class MenuSystem 
{
	private ArrayList<Patient> patients;
	private ArrayList<Visit> visits;
	private ArrayList<Doctor> doctors;	
 
	public MenuSystem()
{
	patients = new ArrayList<Patient>();
	visits = new ArrayList<Visit>();
	doctors = new ArrayList<Doctor>();
 
 
}
 
	public void addPatient(String fname, String lname, String ssn, String city, String state) {
 
 
		Patient patient = new Patient(fname,lname,ssn,city,state);
 
		try{
			FileReader fr = new FileReader("Patients.txt");
			BufferedReader br = new BufferedReader(fr);
			String str;
 
			while ((str = br.readLine()) != null){	
				patients.add(patient);
				System.out.println(str + "\n");
 
			}
				br.close();
		} catch (IOException e){
 
		}
	}
 
	public void writeToPatient(String textToWrite){
		try{
			final String outputPath = "Patients.txt";
			FileWriter fw = new FileWriter(outputPath, true);
			fw.write(textToWrite);
			Writer out = new BufferedWriter(fw);
			int s = patients.size();
			for(int i = 0; i < s; i++){
				out.write(patients.get(i).toString());
			}
			out.close();
		}catch(Exception e){	
	}
	}
 
	public ArrayList<Patient>getpatients(){
		return patients;
	}
 
	public Patient find(String patient)
	   {  
	      for (Patient p : patients)
	         if (p.toString().equals(patient))
	            return p;
 
	      return null;
	   }
 
public void addDoctor(String Fname, String Lname, String npi, String special) {
 
		Doctor doctor = new Doctor(Fname,Lname,npi,special);
		try{
			FileReader fr = new FileReader("doctors.txt");
			BufferedReader br = new BufferedReader(fr);
 
			String str;
 
			while ((str = br.readLine()) != null){	
				doctors.add(doctor);
				System.out.println(str + "\n");
			}
				br.close();
		} catch (IOException e){
		}
	}
 
public void writeToDoctor(String textToWrite){
	try{
		final String outputPath = "doctors.txt";
		FileWriter fw = new FileWriter(outputPath, true);
		fw.write(textToWrite);
		Writer out = new BufferedWriter(fw);
		int s = doctors.size();
		for(int i = 0; i < s; i++){
			out.write(doctors.get(i).toString());
		}
		out.close();
	}catch(Exception e){
 
	}
}
	public ArrayList<Doctor>getdoctors(){
		return doctors;
	}
 
	public Doctor findDoctor(String doctor)
	   {  
	      for (Doctor d : doctors)
	         if (d.toString().equals(doctor))
	            return d;
 
	      return null;
	   }
 
public void addVisit(String date, String social, String npi){
 
	Visit visit = new Visit(date, social, npi);
 
	try{
		FileReader fr = new FileReader("visits.txt");
		BufferedReader br = new BufferedReader(fr);
 
		String str;
 
		while ((str = br.readLine()) != null){	
			visits.add(visit);
			System.out.println(str + "\n");
		}
			br.close();
	} catch (IOException e){
	}
}
 
public void writeToVisit(String textToWrite){
try{
	final String outputPath = "visits.txt";
	FileWriter fw = new FileWriter(outputPath, true);
	fw.write(textToWrite);
	Writer out = new BufferedWriter(fw);
	int s = visits.size();
	for(int i = 0; i < s; i++){
		out.write(visits.get(i).toString());
	}
	out.close();
}catch(Exception e){
 
}
}
public ArrayList<Visit>getvisits(){
	return visits;
}
 
public Visit findVisit(String visit)
   {  
      for (Visit v : visits)
         if (v.toString().equals(visit))
            return v;
 
      return null;
   }
 
 
 
}

Jeesh! Getting a straight answer from you is like pulling teeth. Can you see that your first post and post #7 have almost nothing in common? And we still don't know what you need help with. The three menu items you listed are simple counters, probably best stored as fields in a class.

As for StringTokenizer, show how you're trying to use it, the format of the data file you're saving to record the office's business. You may want to store objects (patient, doctor, office, etc.), OR more simply just store the data as Strings and use the split() method to break the data at commas or some other acceptable delimiter.