Answer to Question #182858 in C++ for Ramakrishna

Question

Write program to input a multi-word string from keyboard and write this input string along with first letter of each of its word into a file “initials.txt”. Data already present in the file initials.txt must be preseved. Display suitable error message if the file opening/writing operation fails. 

Answer 1

#include <iostream>
#include <fstream>
#include <string.h>
#include <ctype.h>

using namespace std;

int main()
{
//variable declaration
string s;
int i=0;
  
//get user input
cout<<"Enter a string: ";
getline(cin, s);
  
//create object
fstream file;

//open file again
file.open("initials.txt", ios::app);
  
//check if file is opened successfully
if(file)
{
//append the content to the file
file<<s[0];
while(s[i]!='\0')
{
if(s[i]==' ')
file<<s[i+1];
i++;
}
}
else
{
cout<<"File not opened successfully!";
}
  
//close the file
file.close();

return 0;
}

INPUT:

Enter a string: Ok Do It

OUTPUT:

initials.txt

ODI