Question

In: Computer Science

Write a program that reads a file called document.txt which is a text file containing an...

Write a program that reads a file called document.txt which is a text file containing an excerpt from a novel. Your program should print out every word in the file that contains a capital letter on a new line to the stdout. For example: assuming document.txt contains the text C++

Solutions

Expert Solution

Please find below the code, code screenshots and output screenshots. Please refer to the screenshot of the code to understand the indentation of the code.  Please get back to me if you need any change in code. Else please upvote

CODE:

#include <iostream>

#include <fstream>

using namespace std;

//main function

int main()

{

               ifstream infile; //input file stream object

               string line; //variable to store each line in file

               string firstWord; //variable to store the first word in each line

              

               infile.open("document.txt", ios::in); //Open the file document.txt in read mode

              

               if(!infile) { //checking if file exists

                   cout<<"File does not exist\n"; //display error if file not exists

                   return 1;

               }

              

    if(infile.peek() == EOF) { //checking if file is empty

        cout<<"File is empty\n"; //display error if file is empty

        return 1;

    }

       

    while (getline(infile, line)) //loop until last line in file

    {

        firstWord = line.substr(0, line.find(" ")); //Extract first word in the line

        if(isupper(firstWord[0])) //if first character in firstWord is uppercase

            cout << firstWord << endl; //print the firstWord

    }

    infile.close(); //closing the input file

              

               return 0;

}

INPUT FILE (document.txt)

OUTPUT:


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