Question

Loading and Saving a Survey

For this lab activity, you are going to practice creating a program that reads and writes data to a file. Download the lab24.zip file to get started.

The main.cpp file is completely written for you; there's nothing you need to change in there. The main function provides the menu loop for the user to pick either loading or saving the survey responses. Additionally, the funcs.h header file is also done for you. The tasks to complete lie in the funcs.cpp file. There are three functions that you will need to implement.

The loadFile function should:

• prompt/store the user to enter the filename
• create a fstream variable
• try opening the requested file
  • if the file failed in opening, display an error message and leave the function
• display all the data in the file
• close the file

The saveFile function should:

• prompt/store the user to enter the filename
• prompt/store the user to enter which mode to use for writing (output or append)
• create a fstream variable
• try opening the requested file in the mode the user requested
  • if the file failed in opening, display an error message and leave the function
• call the survey function, passing in the file as an argument
• close the file

The survey function is actually simple (if you did the previous lab). You can just reuse the same survey code you did previously.

Sample Run

The following is a sample run that you can use to model your program (but use different questions!):

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 2
Enter the filename with extension that you want to load:
surveyResp.txt
Enter 0 for output (overwrite) mode or 1 for append mode:
0

Welcome to my survey!
I will be asking you a series of 5 questions.
Your responses will be saved for future reference.
++++++++++++++++++++++++++++++++++++++++++++++++++
What is your name?
Angela Vaughn
What is your age?
24
Do you like dogs?
yes!
How many pairs of shoes do you own?
6
Do you like vegan tacos?
yaaaaaaaas
Thank you for taking my survey!
Would you like to start the survey again?
no

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 1
Enter the filename with extension that you want to load:
surveyResp.txt

Name: Angela Vaughn
Age: 24
Likes dogs: yes!
Pairs of shoes: 6
Likes vegan tacos: yaaaaaaaas

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 2
Enter the filename with extension that you want to load:
surveyResp.txt
Enter 0 for output (overwrite) mode or 1 for append mode:
1

Welcome to my survey!
I will be asking you a series of 5 questions.
Your responses will be saved for future reference.
++++++++++++++++++++++++++++++++++++++++++++++++++
What is your name?
manuel
What is your age?
31
Do you like dogs?
n
How many pairs of shoes do you own?
12
Do you like vegan tacos?
NO
Thank you for taking my survey!
Would you like to start the survey again?
y
++++++++++++++++++++++++++++++++++++++++++++++++++
What is your name?
Raine B
What is your age?
18
Do you like dogs?
of course :)
How many pairs of shoes do you own?
4
Do you like vegan tacos?
Yeah, they're okay I guess.
Thank you for taking my survey!
Would you like to start the survey again?
no thanks

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 1
Enter the filename with extension that you want to load:
badFile.png
Error, unable to open that file!

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 1
Enter the filename with extension that you want to load:
surveyResp.txt

Name: Angela Vaughn
Age: 24
Likes dogs: yes!
Pairs of shoes: 6
Likes vegan tacos: yaaaaaaaas
Name: manuel
Age: 31
Likes dogs: n
Pairs of shoes: 12
Likes vegan tacos: NO
Name: Raine B
Age: 18
Likes dogs: of course :)
Pairs of shoes: 4
Likes vegan tacos: Yeah, they're okay I guess.

1. Load survey responses
2. Save survey responses
3. Exit
Enter your choice: 3

Submission

To receive credit, you need to submit a .zip file that contains all of your files for the program.

here is lab24.zip please make code copyable and in c++

#include "funcs.h" #include <iostream> using namespace std; int main() { // variables int userChoice = 0; // menu loop do // display menu cout << "1. Load survey responses\n"; cout << "2. Save survey responses\n"; cout << "3. Exit\n"; // prompt and store, checking for bad input while (true) { cout << "Enter your choice:"; cin >> UserChoice; if (cin.fail()) { cin.clear(); cin.ignore (4096, '\n'); else { break; // branch if (userChoicel) loadfile(); else if (userChoice - saveFile(); 2) { else if (userChoice !=3){ cout << "Invalid choice!\n"; } while (userChoice != 3); // terminate return 0;

Answer 1

 #include "funcs.h" #include <iomanip> #include <iostream> #include <string> #include <fstream> using namespace std; //loadFile function void loadFile(){ string filename; string data; cout<<"Enter a Filename: "; //prompt the user to enter the filename getline(cin,filename); fstream myfile; //fstream variable myfile.open(filename); //try opening the requested file if (myfile.is_open()){ //display all the data in the file while(!myfile.eof()){ myfile>>data; cout<<data<<endl; } myfile.close();//close the file } else { cout<<"Error opening file"; //display an error message } } void saveFile(){ string filename; string mode; cout<<"Enter a Filename: "; getline(cin,filename); cout<<"Enter which mode to use for writing (out or app ): "; getline(cin,mode); fstream myfile; myfile.open(filename,mode); if (myfile.is_open()){ survey(myfile); //call the survey function, passing in the file as an argument myfile.close(); //close the file } else { cout<<"Error opening file"; } } void survey(fstream& outputFile){ //You can just reuse the same survey code you did previously. } 



12 - 1 #include "funcs.h" 2 #include <iomanip> 3 #include <iostream> 4 #include <string> 5 #include <fstream> 6 using namespace std; 7 8- /* 9 The loadFile function will prompt/store the user to enter the filename 10 create a fstream variable myfile. It will try opening the requested file 11 if the file failed in opening, display an error message and leave the function. then display all the data in the file and then close the file. 13 14 - void loadFile() { 15 string filename; 16 string data; 17 cout<<"Enter a Filename: "; //prompt the user to enter the filename getline(cin, filename); fstream myfile; //fstream variable 20 myfile.open(filename); //try opening the requested file if (myfile.is_open(){ //display all the data in the file 23 while(!myfile.eof()) { 24 myfile>>data; 25 cout<<data<<endl; 26 27 myfile.close();//close the file 28 29 else { 30 cout<<"Error opening file"; //display an error message 31 32 33 34 35 - /* 36 saveFile function will prompt/store the user to enter the filename. 37 prompt/store the user to enter which mode to use for writing (output or append) 38 create a fstream variable. try opening the requested file in the mode the 39 user requested if the file failed in opening, display an error message and 40 leave the function call the survey function, passing in the file as an argument 41 close the file */ 43 } } بها } 42

45 49 AWN o o o o o o o o o o o o o 000 44 - void saveFile(){ string filename; //string variable for storing filename 46 string mode; // string variable for storing mode 47 48 cout<<"Enter a Filename: "; getline(cin,filename); //prompt the user to enter the filename 50 cout<<"Enter which mode to use for writing (out or app ): "; 51 getline(cin, mode); 52 fstream myfile; //fstream variable 53 myfile.open(filename, mode); 54 if (myfile.is_open(){ 55 survey(myfile); //call the survey function, passing in the file as an argument 56 myfile.close(); //close the file 57 } 58 else { 59 cout<<"Error opening file"; 60 61 } 62 63 - void survey(fstream& outputFile) { 64 //You can just reuse the same survey code you did previously. 65 } 66 }

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