Question

Convert the contents of text file to upper case (C++ Programming)

Convert the contents of a text file to upper case.

Perform the following operations:

• Read the console input and create a file. ['$' character denotes end of content in file.]
• Close the file after creation.
• Now convert the contents of the file to upper case.
• Display the contents of the updated file.

Input:

    Music is like a dream.
    Without music, life would be a mistake
    I can chase you, and I can catch you, but there is nothing I can do to make you mine.
    Music gives a soul to the universe,
    wings to the mind,
    flight to the imagination and life to everything.

    $

where,

• '$' character denotes end of content in file.

Output:

    MUSIC IS LIKE A DREAM.

    WITHOUT MUSIC, LIFE WOULD BE A MISTAKE

    I CAN CHASE YOU, AND I CAN CATCH YOU, BUT THERE IS NOTHING I CAN DO TO MAKE YOU MINE.

    MUSIC GIVES A SOUL TO THE UNIVERSE,

    WINGS TO THE MIND,

    FLIGHT TO THE IMAGINATION AND LIFE TO EVERYTHING.

Answer 1

//do comment if any problem arises

//Code

#include <iostream>

#include <fstream>

#include <algorithm>

#include <string>

using namespace std;

//name of file

#define filename "word.txt"

//number of lines in file

int n = 0;

//this function reads data from user and writes to file

void read()

{

string temp;

//open file for write

ofstream outfile(filename);

while (getline(cin, temp))

{

//if user enters $ break

if (temp.find("$") != string::npos)

break;

outfile << temp << endl;

}

//close file

outfile.close();

}

//this funciton displays contents of file

void display()

{

string temp;

//open file for read

ifstream infile(filename);

while (getline(infile, temp))

{

cout << temp << endl;

}

//close file

infile.close();

}

//this function converts all lines of file to capital letters

void Capital()

{

string words[1000], temp;

ifstream infile(filename);

while (getline(infile, temp))

{

//this line of code converts whole string to uppercase

transform(temp.begin(), temp.end(), temp.begin(), ::toupper);

words[n++] = temp;

}

//close file

infile.close();

//open file for output

ofstream outfile(filename);

//writer all words from words array of strings

for (int i = 0; i < n; i++)

{

outfile << words[i] << endl;

}

//close file

outfile.close();

}

int main()

{

string temp;

read();

Capital();

display();

}

Output: