Read a File using C++ fstream

To create a file, use either the ifstream or fstream class, and specify the name of the file. To read to the file.

Include the Header file istream
declare a variable of type ofstream.
Open the file for writing.
check for an open file error.
use the file.
Read from the file.
Run the Program after each read.
check for end-of-file .
close the open file.

The C++ program demonstrates how to read a file using fstream in C++.

The program first declares a string variable myText which will be used to store the lines read from the file. Then an input file stream object MyReadFile is created with the file name "test.txt". The program then enters a while loop that reads each line of the file using the getline() function until there are no more lines to be read. Each line is stored in the myText variable and printed to the console using cout. Finally, the input file stream is closed using the close() function.

Source Code

#include<iostream>
#include<fstream>
using namespace std;
//Read a File using C++ fstream
int main()
{
    string myText;
    ifstream MyReadFile("test.txt");
    while(getline(MyReadFile,myText))
    {
          cout << myText<<endl;
    }
    MyReadFile.close();
    return 0;
}

Output

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Program List

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Friend Function in C++

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Display Values using Friend Function