Question

In C++

In this homework, you will be tasked with creating functions to manipulate strings that come from files and then outputting the strings to another file. All of these functions are housed together in a menu. The user will be asked to input a file name and then their menu selection.

The menu is this:

1. Get rid of white space
2. Print amount of characters in the file
3. Print amount of words in the file
4. Replace all vowels with 3's
5. Print the file lines in reverse order

Input will look like this: "input1.txt 2". You can assume there will be no numbers in the input files. Make sure that you have variables to store both the input file name and the integer selection.

Menu Items Explained

1. Delete all spaces between words and print that to the new file, line-by-line
2. Count the number of characters in the whole file, not including spaces, and print that to the new file
3. Count the number of words in the whole file and print that to the new file
4. Replace all vowels with 3's and print that to the new file, line-by-line
5. Given the order of the file lines (Ex: 1 2 3), print to the new file the reverse (Ex: 3 2 1)

Each operation must be performed by a separate function. Submissions will receive a 10 points deduction for every function missing.

There should be nothing printed to the console, all input is taken from one file and outputted to another file! The output file should be named output.txt!

You will be using your own IDE for this homework instead of the zybook IDE. At the bottom of the page, there is an option to upload files. Please upload your .cpp file(s) to be graded.

Answer 1

Code to be Copied:

Stringoperations.cpp

//include required header files
#include<iostream>
#include<fstream>
#include<string>
#include<algorithm>
using namespace std;

//function prototypes
void removeWhiteSpace(ifstream &, ofstream&);
void replaceVowel(ifstream &, ofstream &);
int countWords(ifstream & infile);
int countCharcters(ifstream &);
void reverse(ifstream &, ofstream &);
void mainMenu();

//main method
int main()
{
   //declare variables
   string inputfile;
   int choice, totalChar, totalWords;
   ifstream infile;
   ofstream outputfile;

   //prompt and read the file name from the user
   cout << "Enter the name of the file: ";
   cin >> inputfile;
   //open the output file
   outputfile.open("Output.txt");
   //open the input file
   infile.open(inputfile);

   //if the file unable to open
   //then program will exit
   if (!infile)
   {
       cout << "Unable to opent the file... File not found.\n";
       return 0;
   }
   //call the method to display the menu
   mainMenu();
   //read the choice
   cin >> choice;
   //using switch case for the different choices
   switch (choice)
   {

   //case 1 to remove white spaces
   case 1:
       removeWhiteSpace(infile, outputfile);
       break;

   //case 2 to count number of characters in the file
   case 2:
       totalChar = countCharcters(infile);
       outputfile << "Total number of characters in the "
           << inputfile << " are :" << totalChar << endl;
       break;

   //case 3 to count number of characters in the file
   case 3:
       totalWords = countWords(infile);
       outputfile << "Total number of words in the "
           << inputfile << " are :" << totalWords << endl;
       break;

   //case 4 replace the vowel as "sss" in the content
   case 4:
       replaceVowel(infile, outputfile);
       break;

   //case 5 reverse the order of lines in the file
   case 5:
       reverse(infile, outputfile);
       break;
   default:
       cout << "Invalid choice!!!" << endl;
       break;
   }
   //close the input file
   infile.close();
   //close the output file
   outputfile.close();
   return 0;
}
//implement method to print the menu
void mainMenu()
{
   cout << "1. Get rid of white space." << endl;
   cout << "2. Print amount of characters in file." << endl;
   cout << "3. Print amount of words in file." << endl;
   cout << "4. Replce all vowels with 3's." << endl;
   cout << "5. Print the file lines in reverse order." << endl;
   cout << "\Enter the choice: ";
}

//Implement function that will remove the
//white space and write to file
void removeWhiteSpace(ifstream &infile, ofstream &out)
{
   //decalre variable
   string line;
   //use while loop to read the line
   while (getline(infile, line))
   {
       line.erase(remove(line.begin(), line.end(), ' '), line.end());
       out << line << endl;
   }
}

//implement the function that will count the total
//number of characters in the file and return it
int countCharcters(ifstream & infile)
{
   //declare the input line
   string line;
   int count = 0;
   //use while loop to read the file
   while (getline(infile, line))
   {
       //use for-loop to read each character
       for (int i = 0; i < line.size(); i++)
       {
           //if space is found then
           //increment the count variable
           if (line[i] != ' ')
           {
               count++;
           }
       }
   }
   //return the count value
   return count;
}

//implement function that will count the total
//words in the file and return it
int countWords(ifstream & infile)
{
   //declare variable
   string line;
   int count = 0;

   //use while loop to read the input line
   while (getline(infile, line))
   {
       //to read each word
       for (int i = 0; i < line.size(); i++)
       {
           //if space or tabspace found then increment word count
           if (line[i] == ' ' || line[i]=='   ')
           {
               count++;
           }
       }
       count++;
   }
   //return the count variable
   return count;
}

//Implement the function to replace the vowels with the "3"
void replaceVowel(ifstream &infile, ofstream &out)
{
   //decalre variables
   string input, newStr = "";
   //use while loop to prompt and read the
   while (getline(infile, input))
   {
       //initialize variable
       newStr = "";
       //use for-lop to replace vowel character in the line
       for (char& c : input)
       {
           if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u'
               || c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U')
           {
               newStr += "3";
           }
           else
           {
               newStr += c;
           }
       }
       //write the output to the file
       out << newStr << endl;
   }
}

//Implement function that will reverse the
//lines order in the file
void reverse(ifstream &infile, ofstream &out)
{
   //decalre variable
   string str;
   //decalre string array
   string temp[50];
   //declare variable of type integer
   int i = 0,count = 0;
   //use while loop to read the
   //input lines in the file
   while (getline(infile, str))
   {
       //store each line in the array
       temp[i] = str;
       //increment i value
       i++;
       //increment count
       count++;
   }
   //use for-loop to write the
   //lines in reverse order
   for (i = count - 1; i >= 0; i--)
   {
       out << temp[i];
       out << endl;
   }
}