Appending Data to Files
Lesson 13 of 23 in Coddy's C++ File Handling course.
The .put(char) method writes a single character to the file, useful for adding individual characters like newlines or formatting symbols.
On the other hand, .write(string, size n) writes n characters from a string to the file, ideal for handling larger chunks of data.
ofstream output;
output.open("example.txt");
output.put('H');
output.put('I');
output.put('!');
output.put('\n');
char* message = "Hello!";
output.write(message, strlen(message));
Challenge
EasyWrite a program that opens the file named output.txt reads from standard input 3 characters, and then a string, append the characters but each one separated with a whitespace
*Do not change the default code*
Try it yourself
#include <iostream>
#include <fstream>
using namespace std;
int main()
{
// Enter your code here
// DO NOT CHANGE THE CODE BELOW!
ifstream file("output.txt");
string line;
while(!file.eof()){
getline(file, line);
cout << line;
}
file.close();
}