Opening .txt files

Question

How exactly would you open and read the contents of a text file? All I get are errors.

Answer 1

#include <iostream>
#include <fstream>
using namespace std;

int main () {
string line;
char input;
ifstream MyFile;
cout << "Do you want to read text file? (Y/N) : ";
cin >> input;

if (input == 'Y')
{
MyFile.open("test.txt");
while ( getline (MyFile, line) ) {
cout << line << '\n';
}
MyFile.close();
}
return 0;
}

Answer 2

This is actually covered in our C++ course.

You include the <fstream> header to deal with files.
Create an instance of ifstream object. Read the file using the ifstream .open() method and file streams.

//assuming file line < 10

string data[10];
int counter = 0;
ifstream obj;
obj.open("yourtextfile.txt");

while (!obj.eof()) // while not end of file
{
getline(obj, data[counter]);
counter++;
}

// reads every line of text into your string array.

If you have any problems, you can post your code here for inspection.

Answer 3

i would have to go through the tutorial again to find it. can you copy it into codeplayground for us?

Answer 4

Hatsy = perfect as usual 😊 here is how one would write the file and to show that it works as presented here.

https://code.sololearn.com/cvx1oY29PV6A/?ref=app

Answer 5

@Jordan You are also part of the community, so it's our (as in the possession of the entire community) course! :D

(Ofc, nobody gets paid for reporting bugs...)

Answer 6

Replace input char variable with a string variable.

Answer 7

+1 Hatsy. Also make sure that the text file contents are in the order the code expects them to be in.

best bet is to post the code as Hatsy recommended

Answer 8

@Hatsy, you said "our C++ course". Do you work for solo learn? Who else works for solo learn? Or am I just misunderstanding?

Answer 9

I am trying to make a c++ program that takes input and, if a certain input is entered, prints the contents of a text file. If statements aren't working

Answer 10

I tried to use some of the example code in the tutorial, but the compiler on the computer never recognizes the "Myfile" object.

Answer 11

#include <iostream>
#include <fstream>
using namespace std;

int main () {
string line;
ifstream MyFile("test.txt");
while ( getline (MyFile, line) ) {
cout << line << '\n';
}
MyFile.close();
}

Answer 12

Interesting.......but what if instead of a Y/N input, it is a whole word? How would you make that work with an if statement?