Suppose that we want to help physicians to diagnose illnesses. A physician observes a patient's symptoms and considers the illnesses that could be associated with those symptoms. Design and implement a class PhysiciansHelper that provide a list of those illnesses. PhysiciansHelper should contain a dictionary of illnesses and symptoms. A method should read a text file of illnesses and their symptoms into the dictionary. See format in sample data file. PhysiciansHelper should read a list of symptoms for a patient. A method should read a list of symptoms and store into a list. Then, it finds a list illnesses that are associated with those symptoms. See format in sample run output. Note: I have modified specification and requirements of this project Project requirements: ? You will need to complete two methods in PhysiciansHelper class: public void processDatafile(); public void processSymptoms(); Refer to PhysiciansHelper for detailed info. ? You must use the predefined private Map> symptomChecker to store symptoms to illnesses mapping info. See format in sample run output. ? All string data are not case sensitive, i.e. should work for either uppercase or lowercase letters. ? In processSymptoms() methods, you must o list possible symptoms in sorted order. o read user input symptoms in single line o check for invalid symptoms and eliminate duplicated symptoms o display result in format as shown in sample output (must count number of matched symptoms) ? Use Java API Map and List in your project https://docs.oracle.com/javase/8/docs/api/java/util/Map.html https://docs.oracle.com/javase/8/docs/api/java/util/List.html Here are some methods that you may need: Map: get(), put(), containsKey(), keySet(), entrySet() List: add(), contains(), size() Compile program: javac PhysiciansHelper.java Sample Run: Note: I expect similar output from your program $ cat sample_data.txt // contents of sample data file cold: runny nose, cough, sore throat flu: runny nose, cough, sore throat, muscle aches, fever mumps: high fever, rash, swelling whooping cough: cough, rash, high fever acid reflux: chest pain, burping chickenpox: fever, blister measles : runny nose, cough, fever, rash norovirus : nausea, diarrhea, vomiting ague: sweatiness, achy, high fever $ javac PhysiciansHelper.java $ java PhysiciansHelper Enter data filename: sample_data.txt ============================================ symptomChecker map: // display contents of map achy=[ague] blister=[chickenpox] burping=[acid reflux] chest pain=[acid reflux] cough=[cold, flu, whooping cough, measles] diarrhea=[norovirus] fever=[flu, chickenpox, measles] high fever=[mumps, whooping cough, ague] muscle aches=[flu] nausea=[norovirus] rash=[mumps, whooping cough, measles] runny nose=[cold, flu, measles] sore throat=[cold, flu] sweatiness=[ague] swelling=[mumps] vomiting=[norovirus] ============================================ The possible symptoms are: // display symptoms in sorted order achy blister burping chest pain cough diarrhea fever high fever muscle aches nausea rash runny nose sore throat sweatiness swelling vomiting ============================================ Enter symptoms: cough,rash,cough,fever,blisterx,cough,runny NOSE =>duplicate symptom:cough =>invalid symptom:blisterx =>duplicate symptom:cough ============================================ PatientSymptoms list: [cough, rash, fever, runny nose] Possible illnesses that match any symptom are: ==> Disease(s) match 1 symptom(s) chickenpox mumps ==> Disease(s) match 2 symptom(s) whooping cough cold ==> Disease(s) match 3 symptom(s) flu ==> Disease(s) match 4 symptom(s) measles

||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

sample_data.txt

cold: runny nose, cough, sore throat flu: runny nose, cough, sore throat, muscle aches, fever mumps: high fever, rash, swelling whooping cough: cough, rash, high fever acid reflux: chest pain, burping chickenpox: fever, blister measles : runny nose, cough, fever, rash norovirus : nausea, diarrhoea, vomiting ague: sweatiness, achy, high fever

||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

PhysiciansHelper.java

import java.util.*;

import java.io.*;

public class PhysiciansHelper

{

// symptom to illnesses map

private Map> symptomChecker;

/* Constructor symptomChecker map using TreeMap */

public PhysiciansHelper()

{

// use TreeMap, i.e. sorted order keys

symptomChecker = new TreeMap>();

} // end default constructor

/* Reads a text file of illnesses and their symptoms.

Each line in the file has the form

Illness: Symptom, Symptom, Symptom, ...

Store data into symptomChecker map */

public void processDatafile()

{

// Step 1: read in a data filename from keybaord

// create a scanner for the file

// Step 2: process data lines in file scanner

// 2.1 for each line, split the line into a disease and symptoms

// make sure to trim() spaces and use toLowercase()

// 2.2 for symptoms, split into individual symptom

// create a scanner for symptoms

// useDelimeter(",") to split into individual symptoms

// make sure to trim() spaces and use toLowercase()

// for each symptom

// if it is already in the map, insert disease into related list

// if it is not already in the map, create a new list with the disease

// Step 3: display symptomChecker map

// implement here.....

} // end processDatafile

/* Read patient's symptoms in a line and adds them to the list.

Input format: Symptom, Symptom, Symptom,...

Shows diseases that match a given number of the symptoms. */

public void processSymptoms()

{

// Step 1: get all possible symptoms from assciatedIllnesses map

// and display them

// Step 2: process patient symptoms, add to patientSymptoms list

// read patient's symptoms in a line, separated by ','

// create a scanner for symptoms

// UseDelimeter(",") to split into individual symptoms

// make sure to trim() spaces and use toLowercase()

// display invalid/duplicate symptoms

// add valid symptoms to patientSymptoms list

// Step 3: display patientSymptoms list

// Step 4: process illnesses to frequency count

// create a map of disease name and frequency count

// for each symptom in patientSymptoms list

// get list of illnesses from symptomChecker map

// for each illness in the list

// if it is already in the map, increase counter by 1

// if it is not already in the map, create a new counter 1

// ** need to keep track of maximum counter numbers

// Step 5: display result

// for count i = 1 to maximum counter number

// display illness that has count i

// implement here.....

} // end processSymptoms

public static void main(String[] args)

{

PhysiciansHelper lookup = new PhysiciansHelper();

lookup.processDatafile();

lookup.processSymptoms();

} // end main

} // end PhysiciansHelper