Question

Have you ever wanted to predict the future? Well the Magic Eight Ball does just that. The original game was a softball sized “8-ball”. You would ask a question, shake it up and look at the result. There are 20 responses…10 positive, 5 negative, and 5 are vague. For this project, we want to recreate this, but give the ability to read in a set of responses, and add additional responses, and print out all of the responses in alphabetical order. Of course, we have to give seemingly accurate responses, which we will do by giving a random response. Program Details: • You should have a menu with five lettered options. You should accept both capital and lower case letters in your menu options. The menu should do the task, then return to the menu (except in the case of exit). Any incorrect responses should get an error message, followed by a reprint of the menu. 1. Read responses/categories from a file 2. Play Magic Eight Ball 3. Sort by responses 4. Sort by categories 5. Write responses/categories to a file 6. Delete response [EXTRA CREDIT and optional] – not for outline 7. Add response [EXTRA CREDI and optional] – not for outline 8. Exit • Each menu item must be implemented using a function or sets of functions with appropriate input parameters and return values. Functions will have a prototype placed above main(), as in the requirements and they will be defined in plain English and placed after main() { }, also in the requirement. • Below you have the function prototypes that you need in order to develop your plain English algorithm and attend the requirements. Functions Prototypes void readResponses(ifstream &infile, string responses[], string categories const int MAXSIZE, int &size ); void playMagicEightBall(string responses [], string categories [], int size ); void sortByResponses(string responses [ ], string categories[ ] , int size); void sortByCategories(string responses [], string categories [], int size ); void writeMagicResponseCategorie (ofstream &outfile, string responses [], string categories [], int size); void deleteMagicResponse(string responses[], string categories[], int &size); void addMagicResponse(string responses[], string categories[], int &size, const int MAXSIZE); • You cannot have any global variables. So, you will need to declare variables in main, then pass them (as appropriate) to your functions. Remember that there is no built-in size for arrays, so you will have to pass the size (and MAXSIZE when trying to add to an array) o MAXSIZE should be a constant variable. Implementation detail for “Read responses from a file” : • You must use two arrays of the same size (responses [] and categories []). One for the response and one for the category. • Position zero of the response array will correspond to position zero of the category array (so when using both the response and category, you will have to use two addresses). You may not use vectors structs or classes. o A text file containing the responses and categories will be provided for you. Implementation detail for “Play magic ball : • Ask for the user to enter a question to be answered by the magic ball • Stay in a loop of asking and answer questions for the user until the user type the word “quit”, then you may come back to main() ( you may use do/while statement at this point) • You will need to choose a random response, which is, you have to generate a random number in a range of the size of the array. Implementation detail for “Sort by responses and Sort by categories” • If we haven't gone over sorting yet, but if you look up the bubble sort, you will be able to make that work as well, just by following the example in the book. • For the Sorting function, explain in comments, in plain English HOW you might go about sorting the array. Don't worry about actually implementing this in C++ codePrint out the responses followed by category if you sort by response. Print out category followed by response if you sort by category. Implementation detail for “Write responses to a file” • In this option you just need to declare an output file, read both arrays (response and category) and write their content into a file. Generate one output file in the same layout as the input file. Extra Credit: This extra credit is not for the outline is just for the final submission, i.e., for the second part of PA2 project that will be available for you after the due date of PA2-outline, but you may start a plain English algorithm now for these optional functionalities. In order to get extra credit, ALL the functionalities listed above MUST BE working properly. You can get up to 5 points extra credit in the next submission, i.e., when you start to work on you C++ code for the final submission (I mean, a 45/40 in the final submission, not for the outline submission) Implementation detail for “Delete answer” (extra credit) : • Ask the user for a specific index number to delete. Note that static arrays cannot actually delete, so we have to shift everything to the left by overwriting the old value. • Don't forget to decrease size by one. • size is passed by reference since we will change it. • Note that you have to delete the same specific index in both arrays, response and category, because if you have a response in index 1 (response[1]) the respective category of that response will be in the array category[1]. Implementation detail for “Add answer” (extra credit): • Add a Response and the related Category to the end of the respective arrays if there is room. o Hint: To check if there is room on the array you have to compare the size with the MAXSIZE o Let the user knows if the array is too full to add. o Ask the user to enter a new response and a new category to be included in both arrays. o Don't forget to add one to your size! • size is passed by reference since we will change it. • For add answer, you will ask for the user to enter a new answer and a new category to be included in both arrays (response[] and category[] ). • Don’t forget to ensure the size is passed by reference, so when you add or delete and change the size, you are changing the size in main. Layout of the file Field type comment response string Contain the response for the magic eight ball. category string Contain the category of the response. Example of the file content: In that file you can see the first line corresponds to a response and the second line corresponds the category of the previous response. After that, you can see another response followed to another category and so on. Hint: you can see a pattern inside the file, that is, after reading a category you always have a response, so in order to read this file you have to make a loop that read a response from the file and put it into the array called response[] after that you read the next line from the file and put it into another array called category[]. Example how the arrays should look like after reading the file: index responses[] categories[] [0] It is certain positive [1] It is decidedly so positive [2] Reply hazy try again vague [3] My reply is no negative Note: The table above is just an example, the content of the array will depend on which response/category is coming first inside the file.

Answer 1

#include <iostream>

#include<string>

#include "functions.h"

using namespace std;

int main()

{

char ch='y';

int numlines;

string question;

while(ch!='F') {

cout << "--------------------------------" << endl;

cout << "\tMenu";

cout << "\n--------------------------------" << endl;

cout << "\nA. Read responses from a file" <<

"\nB. Play Magic Eight Ball" <<

"\nC. Add responses to the file" <<

"\nD. Print out responses" <<

"\nE. Print out responses by type" <<

"\nF. Exit (upper case)" <<

"\n\nEnter your choice: ";

cin >> ch;

switch (ch) {

case 'a': case 'A':

numlines = readResponses();

break;

case 'b': case 'B':

playGame();

break;

case 'c': case 'C':

addResponses(numlines);

break;

case 'd': case 'D':

printResponses(numlines);

break;

case 'e': case 'E':

printResponsesType(numlines);

break;

case 'f': case 'F':

break;

default:

cout << "\nInvalid choice";

break;

}

}

system("pause");

return 0;

}

functions.cpp

#include <iostream>

#include <fstream>

#include <stdlib.h>

#include <algorithm>

#include <cstring>

#include <string>

#include <ctime>

#define MAXSIZE 100

using namespace std;

struct response {

string resp[MAXSIZE];

string type[MAXSIZE];

int n;

}res;

int readResponses()

{

ifstream read;

string responses[MAXSIZE];

int numlines = 0;

string line;

int i = 0;

read.open("D:\\Responses.txt");

while (getline(read, line))

{

++numlines;

res.resp[i] = line;

i++;

}

cout << "Responses are read" << endl << endl;

read.close();

return numlines;

}

void playGame()

{

string question;

srand(time(NULL));

string answer;

cin.ignore();

cout << "Enter your question: ";

getline(cin, question);

int x = rand() % (20 - 1) + 1;

answer = res.resp[x];

for (int i = 0;i < answer.length();i++)

cout << answer[i + 1];

cout << endl << endl;

}

void addResponses(int numlines)

{

string line;

int x = numlines + 1;

cin.ignore();

cout << "Write your response(starting with p or n or v (example: pTrue) without space): ";

getline(cin, line);

res.resp[x] = line;

numlines++;

ofstream write("D:\\Responses.txt", ios::app);

if (write)

{

write << line << "\n";

write.close();

}

cout << "your response is added" << endl << endl;

}

void printResponses(int numlines)

{

ifstream read;

string responses[MAXSIZE];

string line, str;

int i = 0;

read.open("D:\\Responses.txt");

while (getline(read, line))

{

str = line;

for (int i = 0;i < str.length();i++)

cout << str[i + 1];

cout << endl;

}

cout << endl;

read.close();

}

void printResponsesType(int numlines)

{

string str, str1;

ifstream read;

read.open("D:\\Responses.txt");

int i = 0, num = 0;

while (getline(read, str))

{

++num;

res.type[i] = str;

i++;

}

cout << "\nPositive responses are" << endl;

cout << "--------------------------------" << endl;

for (int j = 0;j < num;j++)

{

str1 = res.type[j];

if (str1[0] == 'p')

{

for (int i = 0;i < str1.length();i++)

cout << str1[i + 1];

cout << endl;

}

}

cout << "\nNegative responses are" << endl;

cout << "--------------------------------" << endl;

for (int j = 0;j < num;j++)

{

str1 = res.type[j];

if (str1[0] == 'n')

{

for (int i = 0;i < str1.length();i++)

cout << str1[i + 1];

cout << endl;

}

}

cout << "\nVauge responses are" << endl;

cout << "--------------------------------" << endl;

for (int j = 0;j < num;j++)

{

str1 = res.type[j];

if (str1[0] == 'v')

{

for (int i = 0;i < str1.length();i++)

cout << str1[i + 1];

cout << endl;

}

}

cout << endl;

read.close();

}

functions.h

#ifndef FUNCTIONS_H_INCLUDED

#define FUNCTIONS_H_INCLUDED

int readResponses();

void playGame();

void addResponses(int);

void printResponses(int);

void printResponsesType(int);

#endif

SCREENSHOT OF A CODE

Source Code: Main.cpp: include <iostream> #include<string> include "functions.h" using namespace std; int main () { char ch='a'; int numlines; ww. string question; while(ch!'f'||ch!='F') { < endl cout < cout "\tMenu"; < endl cout cout "\nA. Read responses from a file" << www. "\nB. Play Magic Eight Ball" << \nC. Add responses to the file" << nD. Print out responses" << \nE. Print out responses by type" << \nF. Exit" << owww.o wwww wwwww. "\n\nEnter your choice: "; cin > ch; wwwww switch (ch) { case a': case 'A' readResponses (); numlines - break; 'B' case 'b': case www wwwww break; case c: case 'C': wwwwn addResponses (numlines) break; wwwwww w e

case D': case www printResponses (numlines) break 'E' case e': case wwww printResponsesType (numlines); break 'f': case 'F': case wwww break default: \nInvalid choice"; cout << break www system "pause"); return 0 } functions.cpp #include <iostream include <fstream> #include <stdlib.h> #include <algorithm> #include <cstring> #include <string include <ctime> #define MAXSIZE 100 using namespace std; struct response { string resp [MAXSIZE] string type [MAXSIZE]; int n }res wme

int readResponses () wwwwn ifstream read; string responses [MAXSIZE]; 0; int numlines stringline; 0; int i read opn "D:\\Responses.txt"); while (getline (read, line)) { ++numlines; res.resp[i] = line; i++; cout "Responses are read" < endl<<endl; read.close (); returnumlines void playGame ( { string estion; srand time (NULL)); string answer; cin.ignore (); cout "Enter your question: "; getline (cin, question); w rand ()% (20 res.resp[x]; 0;i answer.length ( ;i++ int x = 1) 1; wwww answer wwe for (int i www cout < answer [i + 1]; cout < endl<<endl; wwwwwwn w vowwwoeon000. wwwwwwmnnnne }

void addesponses int numlines) { string line; int x numlines + 1; = www cin.ignore (); cout "Write your response (starting with p or n or v (example: pTrue without space): "; getline (cin, line); res.resp[x] line numlines++; of stort 3am rite("D:\\Responses.txt", ios: :app); if (write) { wwww write line<<"\n"; write.close(); ww cout<<"your response is added" << endl<<endl; void print Responses (int numlines) { ifstream read; stringrponses [MAXSIZE]; string line, str; int i 0; read openD:\\Responses.txt"); while (getline (read, line)) { line str www woo (int i = 0;i < str.length();i++ cout str[i + 1] ; for wwwww wwwww cout < endl; wwwwooa cout endl; read.clse (); wwwww ww

} void printRespon pe (int numlines { string str, strl; ifstream read; read opn"D:\\Responses.txt"); 0, num 0 int i while (getline (read, str)) { ++num; str res.type i] wwwww i++; vw } "\nPositive responses are" << endl; cout << wwwwooa < endl cout < 0;j num;j++ (int j for { strl typejl 'p' res. www if (strl [0] oowwwo { strl.length () ;i++ for (int i 0;i _ cout str1[i + 1]; cout < endl; cout "\nNegative responses are" << endl; wwwww < endl cout wwne 0;j num;j++ (int j for strl res.type[j]; -= 'n') if (strl [0] ww { 0 i strl.length () ;i++ for (int i _ wwwwoao cout strl[i + 1]; wwwww

cout << strl[i + 1]; cout < endl; w ww.onnns ww wwww endl '\nVauge responses are cout < << endl; cout www. for (int j 0;j num;j++) ooowwwn { type j = 'v') strl res. if (strl [0] { strl.length () ;i++ for (int i 0;i www cout <strl[i + 1]; cout < endl; wwwww cout endl; read.close (); functions.h #ifndef FUNCTIONS H INCLUDED #define FUNCTIONS H INCLUDED int readesponses ); void playGame ); void addResponses int); void print Re sponses (int); void print ResponsesType (int); www #endif wwww

OUTPUT:

Menu A. Read responses from a file B. Play Magic Eight Ball c. Add responses to the file D. Print out responses E Print out responses by type F. Exit Enter your choice: A Responses are read Menu A Read responses from a file B. Play Magic Eight Ball C. Add responses to the file ID. Print out responses E. Print out responses by type F. Exit Enter your choice: B Enter your question: will i get pass mark Most likely Menu A Read responses from a file B. Play Magic Eight Bal1 C. Add responses to the file D. Print out responses E Print out responses by type F Exit Enter your choice: C Write your response(start ing with p or n or v Kexample: pTrue> without space): v Dont Know your response is added

Menu A. Read responses from a file B. Play Magic Eight Bali c. Add responses to the file D. Print out responses E. Print out responses by type Enter your choice: D It is certain It is decidedly so Without a doubt Yes definitely You_may rely on it As I see it, yes Most likely Out look good Yes Signs point to yes Reply hazy try again Ask again later Better not tell you now Cannot predict now Concentrate and ask again Don't count on it My reply is no My sources say no Outlook not so good Very doubtful Dont Know Menu A. Read responses from a file B. Play Magic Eight Ball c. Add responses to the file TD. Print out responses E. Print out responses by type F. Exit Enter your choice: C Mrite your response<starting with p or n or v Cexample: pTrue) without space): p| True your response is added

Menu A. Read responses from a file B. Play Magic Eight Balï c. Add responses to the file D. Print out responses E. Print out responses by type F. Exit (upper case) Enter your c ho ice : E Positive responses are It is certain It is decidedly s Wit hout a doubt Yes definitely You_may rely on it As I see it, yes Most likely Out look good Yes Signs point to yes True o Negative responses are Don't count on it My reply is no My sources say no Outlook not so good Very doubtful Wauge responses are Reply hazy try again Ask again later Better not tell yow no Cannot predict now Concentrate and ask again Dont Know w Menu A. Read responses from a file B. Play Magic Eight Bali C. Add responses to the file D. Print out responses E. Print out responses by type F. Exit <upper case) Enter your cho ice: F Press any key to continue