Reading From A File In C++

// reading a text file
#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main () {
  string line;
  ifstream myfile ("example.txt");
  if (myfile.is_open())
  {
    while ( getline (myfile,line) )
    {
      //use line here
    }
    myfile.close();
  }

  else cout << "Unable to open file"; 

  return 0;
}

View another examples Add Own solution

Log in, to leave a comment

4

8

IAmNaN 90 points

                                    #include &lt;iostream&gt;
#include &lt;fstream&gt;
using namespace std;
int main() {
	fstream my_file;
	my_file.open(&quot;my_file.txt&quot;, ios::in);
	if (!my_file) {
		cout &lt;&lt; &quot;No such file&quot;;
	}
	else {
		char ch;

		while (1) {
			my_file &gt;&gt; ch;
			if (my_file.eof())
				break;

			cout &lt;&lt; ch;
		}

	}
	my_file.close();
	return 0;
}

Thank you! 8

4 (8 Votes)

0

3.78

9

Glen_b 100 points

                                    int a, b;
    
ifstream bd; 
myfile.open(&quot;file.txt&quot;);

if (myfile.is_open())
	while (bd &gt;&gt; a &gt;&gt; b)
    	cout &lt;&lt; a &lt;&lt; b &lt;&lt; endl;

else cout &lt;&lt; &quot;ERROR&quot;;

Thank you! 9

3.78 (9 Votes)

0

3.78

9

Jesse Knight 120 points

                                    // basic file operations
#include &lt;iostream&gt;
#include &lt;fstream&gt;
using namespace std;

int main () {
  ofstream myfile;
  myfile.open (&quot;example.txt&quot;);
  myfile &lt;&lt; &quot;Writing this to a file.\n&quot;;
  myfile.close();
  return 0;
}

Thank you! 9

3.78 (9 Votes)

0

Are there any code examples left?

Find Add Code snippet

New code examples in category C++

C++ 2023-04-28 17:44:25
C++ 2022-03-27 19:20:39 lists occurrences of characters in the string c++
C++ 2022-03-27 18:00:14 variabili in c++
C++ 2022-03-27 17:10:08 repeat character n times c++
C++ 2022-03-27 15:50:07 delete an array c++
C++ 2022-03-27 15:40:12 C++ pointer to base class
C++ 2022-03-27 12:15:21 find the graph is minimal spanig tree or not
C++ 2022-03-27 11:30:15 multi variable assignment cpp
C++ 2022-03-27 11:05:17 c++ pi float
C++ 2022-03-27 10:20:12 why exceptions can lead to memory leaks

Create a Free Account

Unlock the power of data and AI by diving into Python, ChatGPT, SQL, Power BI, and beyond.

Develop soft skills on BrainApps

Complete the IQ Test

Relative searches

c++ how to include files file handling read and write in c++ using File C++ c++ cpp file how ot read a file in c++ read data from file using fstream in c++ is C++ good for file reading? open file with cpp read file and print c++ read from file cpp c++ how to read out a file in C++ read/write file c++ how to write and read a file in cpp reading whole file in c++ read from input file c++ c++read file C++ file to read C++ read from .txt file c++ reading and writing files what are .cpp files? open a file for reading and writing c++ cpp read a file c++ reading text file c++ file read write C++ file . how to read from file in cpp code cpp read file from .in false reading from file c++ fstream read a file c++ use files cpp c++ include c++ files file and read in c++ write in file and read in c++ read and write file c++ read file through function in c++ ++read from file in c c++ open file for reading read file in c++ program read from file in cpp c++ file FILE * cpp open file using C++ open file in c++ fstream writing and reading files in c++ file.read() c++ file reading program in cpp read file in c++ using text file reading data from file in c++ reading file cpp reading file implementation in c++ how to read a file in c++ reading file contents in c++ open file for read cpp write and read file c++ how to read a file cpp file read write c++ c++ file open c++ readfrom file create c++ file c++ read data from file c++ file.open how to read in file c++ fstream open files c++ file.read c++ open file for both read and write c++ how to open file in cpp Writing and reading files c++ read and write file in cpp include c++ file in c open and read file in c++ *FILE cpp c++ reading all file read file using function in c++ how do you read file in c++ c++ include c++ file load file from file c++ read data from file in c++ file.cpp open file using fstream c++ read data from file in c++ FILE * read cpp should i include file c++ in c++ cpp open and read file file c++ txt file read in c++ load a file into cpp read c++ fstream open file read file in C++\ how toget C++ to read a file freopen to read in a file in cpp reading in file c++ file read write program in c++ files cpp c++ a file cpp how to read file c++ how to read a .txt file how to read data from a file in c++ opening file for read and write c++ read write file cpp c++ reading from text file reading txt file c++ how to read a file in c++ using >> read txt file c++ g++ file.cpp -E c++ file library read and write from a file c++ how to open file for reading and writing cpp reading files in cpp how to read file om cpp c++ how to read data from a file open file in cpp c++ read read file c++ file reading txt readfrom file c++ open and read text file c++ fstream reading file at C++ Fastest way to read a file in C++ c ++ read from file c++ read file and print where do c++ files write how do i open a c++ file c++ code to read the file how do I read a file in c++ read a file in c ++ how to read a filer in cpp file.read() in c++ read from a file in c++ how to open a file in c++ with fstream fstream c++ read file open a file txt c++ read in from file c++ open read write file in cpp read from a text file c++ open a text file c++ reading in from a file c++ read from a file cpp c++ read in file how to read in a file c++ c++ fstream read file write a program to read file in c++ read in from a file cpp read files cpp open and read file c++ c++ reading from file where to put file read in file cpp c++ reading data from a file can you use c++ files in c FILE cpp cpp read in a file read file c++ freopen reading from file in c++ reading from file c++ method c++ read file with fstream reading data from file c++ command to read a file in c++ c++ reading from a file read in a file c++ Reading from a file C++ program cpp basic file c++ include files open c++ file fstream fstream c++ open file How do I read file using ( < ) CPP creating and reading from a file in c++ opening a file in c++ c++ file * opening file c++ how to read from a file in cpp read file c++ read from file in C++ c ++ read from files reading from text file c++ open and read write file in c++ open read file cpp read data from a file c++ .cpp file c++ how to read file in cpp c++ open file and read how to open and read a file in c++ code c++ reading from file how to read a file in cpp cpp file c++ program to read a file open file and read contents c++ c++ open file to read and write open a file cpp c++ read file gets cpp read file fstream c++ file i/o .cpp files c++ read iin a file read files in cpp how to read file c++ cpp how to use files open file for reading and writing c++ open file reading c++ output file c++ read the whole file c++ cpp how to read a file how to open and read file in cpp read text from file c++ read text files in c++ reading a file cpp c++ read from file basic c++ tread from file write to file - c++ how to read from file cpp how to read file in cpp c++ input from file how to display in c++ using fstream write a file in cpp read from files cpp how o read txt file in c++ c++ not reading file how to open a file for reading in c++ using command line write file cpp where does c++ read file from fstream in c++ open file for reading c++ how to read from a file c++ and print how to read a file in file handling in c++ how to write and read from file in c++ save to a file c++ how write to a file C++ c++ read a text file WRITE TI FILE CPP reading from a file in cpp writing to file c++ c++ wrote to file open and read a file in c++ write to a file cpp cpp file reading c++ read text file c++ read file example read form a file in cpp read int from file c++ writing to the file c++ write in a file cpp cpp write files Open text file c++ write file c++ FILE writing in c++ file write in file in cpp c++ write £ to file write and read from file c++ write in file cpp read a file in cpp how to read files in cpp cpp read files file write c++ how to read txt file C++ Reading from text files C++ how to read a file using C++ read a text file cpp cpp write to file function to read file in C++ create a file in c++ example c++ program to read data from a file cpp write and read read and write a data to and from a file c++ read in file c++ cpp h files print text file c++ fstream c++ deque reading from a file c++ what does file.get() do in c++ input file or reading from a file c++ reading from a file c++ how to write to a text file c++ read from text c++ c++ reading a file read thew file in c++ write a file in c++ how to read numbers from a file in c++ cpp files read a file in c++ stynax of ofstream c++ writing to file reading the file in c++ c++ input text file read txt in cpp file handling c++ how to write file with cpp c++ create new file read from file c++ fstream input from file c++ cpp imput from file write in a file c++ read a text file c++ read a text filec++ c++ fstream creating new file .cpp file file reading in c++ how to work with a file in c++ reading from a file - c++ how to use mode in file i o in c++ c++ program to delete the content of a file i/o file c++ example reading writing a file c++ c++ open text file read cpp example file file cplusplus how to read a text file in c++ how to access a text file in c++ cpp write to text file how to read from a file c++ reading a file and wrting c++ reading file in cpp file handling in c++ how to write in a file in c++ load file c++ c++ .file c++ how to read from file file reading in cpp create and write in a file C++ using fstream in c++ c++ write to file example c++ reading file input c++ ifstream example example c++ fstream example c++ file out c++ how to read a file cpp read from text file writing and saving to a file c++ fstream how to save to a file read from a file in cpp read whole file c++ c++ should I have file writing in main read from open a file c++ fstream c++ example in c++ what is a file file i/o in c++ how to read a file c++ fstream write writing into file C++ input into file C++ read from file i C++ c++ read from text file set io to file c++ output to txt file c++ c++ how ot open a file how to read in from a file c++ text file input c++ cpp write to a file write data to a file c++ c++ reading in a file sample c++ file c++ output to file how to read data from text file in c++ ifstream c++ example c++ get() in file reading out files c++ c++ read file windows to read from file in c++ open file cpp writing a c++ file from a c++ load from file c++ can you write to a non .txt file c++ filename for writing to a file c++ write strings to file c++ reading a file using fstream c++ open or create a file c++ c++ ofstream ifstream c++ load text file read .txt file c++ c++ read write to file read data from file c++ read from a file c++ cpp file io functions c++ wite into file how to work with file input in C++ c++ how to open a new file input file cpp c++ write data to file file opening in cpp c++ filw writer file read c++ c++ cout file c++ fstream write to file istream c++ files how read file in c++ how to fine a text and write in a file in cpp how to read from a text file in c++ reading from file c++ how to write a text file in c++ print in file c++ how to write in file in cpp hou to store out in a text file in cpp cpp write to output file read from txt file cpp FileRead iostream c++ open a file cpp write file operation in file in c++ inputting to file file read in c++ ifstream txt read and write in a text file cpp get data from file c++ file create open write close in c++ save data to text file c++ file streaming c++ if stream cpp myfile cpp ifstream get input from a file in c++ cpp file io File.write() c++ files in cpp output text file contents of file c++ output stream c++ output file stream c++ read file using cpp how to read form file c++ c++ opening a file how to write to text file in c++ read file by >> c++ input and output as a file in cp input and output as a file in c++ output file txt c++ c++ load file fstream write to file at line and character fstream write to file at location read context of text file c++ make and write to file c++ how to import a txt file into c++ and display how to read for file c++ how to print the output of a file in external file c++ using file data in cpp write into file c++ how to read a text file c++ fstream how to store data in a txt file c++ how to write into afile cpp open files in cpp how to open files in cpp c++ include ios fstream to string c++ example how to use a text file as input cpp how to read from file in c++ Write a statement to open the ofstream outfile ofstream file c++ load a text file in c++ opening and reading a text file in c++ cpp read from a file c++ text file write read and write file cpp read ofstream #include ofstream import txt c++ read text files c++ c++ iostream example how to make a file using c++ c++ read from from file c++ when writing to file where does it go c++ write to file where does it go readin file using outputstream operator in c++ write text to file c++ read text file cpp cpp read text file how to write text in c++ reading and writing text files c++ file >> s1; cpp c++ readin a file c++ save output to txt file how to create file with FILE object c++ writing to text file c++ ifstream read file how to read files using c++ write into file cpp how to include text file in c++ save into a file cpp file cpp sample cpp stream cpp read write c++ stream read file file input in c++ write to file in c+ create file in c++ how to output data to a file in c++ write line to text filec++ c++ include fiestream how use file in c++ using open c++ write text to file in C++ ofstream c++ example create how to send a output in file in c++ write into text file cpp file writer c++ how to write a document in c++ how to make c++ program open a file how to write in text file c++ c++ save text to file c++ write in a file getting information from a text file and outputting it c++ print a text to a document with c++ using namespace std::ofstream c++ program prints file working with a file c++ ifstream ofstream fstream how to read a file and write using that data cpp ofstream header file how to get output from text file c++ write string to .txt file c++ open and display .txt file on screen c++ file read in cpp output file stream how to save a cin into a file C++ write results of function to .txt file c++ declare ifstream write into file fstream c++ writing to file streams read and write fstream c++ open read write c++ file how to read the file using fstream how to read file with the use of fstream in c++ read file from c++ c++ how to write to file how to use ofstream to store integr values of the same variables in a file in c++ using function how to use ofstream to put number values of the same variables in a file in c++ using function how to use ofstream to put values of the same variables in a file in c++ using function how to write from the file in c++ using fstream how to read from the file in c++ using fstream create file open file c++ take inputs form file c++ .out file in c++ example of fstream in c++ open and read file cpp include fstram c++ using ifstream writing to a file using fstream c++ how to read data from a txt file in c++ ofstream write to file read from txt file c++ how to input a file reading a file in c++ FileOutputStream c++ c++ open .txt file and display contents c++ file text write c++ decrement file reader how to input text file in c++ c++ in out file stream how to read text in c++ reading a file in cpp filereader package c++ can ifstream use mode out c++ ifstream read file how to create functions in c++ to read data from a file fstream write function in c++ open file for editing later in progrM C++ reading data from the file c++ c++ import for reading files cpp read a text fike fstream open read file open text file fstream write output to file c++ ofstream c++ write to file ofstream and outputfile example c++ c ++ write to file c++ how to extract all functions into text file ofstream open cpp how to read a fil open file in binary c++ read data from a file in c++ fstream header file cout things in a file open a file in cpp open and write text file c++ ofstream flags opening a file c++ file reading cpp print file c++ how to read text from file c++ c plus plus reading a text file file input output in c++ how to use fstream how to create an input file c++ c++ read a file how to write to file c++ writeto a file c++ read from file cpp file input reader c++ how to write into a file c++ fstream myfile opening a file for reading vs writing c++ fstream read file fstream open as read and write print a txt file in cpp writing line by line to a file in c++ create a file c++ write tot text file in C++ c++ file open read read input from text file in c++ read and write file in c++ cin file c++ c++ file read and wirit ofstream process ifstream inFile("HouseHold.txt"); c++ get file write a file c++ output to text file c++ cout file output how to use stream to pass in txt to the program in C++ how to read a single object from a fstream file put c++ output to file how to create files using cpp Read and store data from a text file c++ c++ file write at line c++ file.write c++ ios::app example cpp read input from file cpp working with files load data from file c++ and execute how to take file input and open it c++ c++ program to read and write a text file read from text file c++ how to open file in c++ C++ filestream how to read and write text file in c++ loading from a file using inputstream c++ io in cpp c++ writing to a text file how to write a function to load from file in C++ c++ how does sstream break down a file a program that opens a non-existent file for writing and output some text into the file C++ .c++ file cpp read from file cpp open file print a linux file in c++ cpp get input file save file c++ ifstream read file cpp print output to file c++ fout c++ example fstream read file c++ c++ how to read from text file iostream in c++ example cpp write to a file with offstream file open read c++ load text file c++ drbuf() files c++ how to use input and output files in c++ cin c++ to fstream c++ reading from a text file read write file with c++ how to read cpp files ] how do i read from a file in c++ c++ file input output c++ load from text file ifstream c++ read file the best file input function for c++ c++ print file object download c++ output file .out ifstream in hpp function header file how to do file input in c++ c++ file reading read txt file cpp write into text file c++ stream a file to disk c++ c++ read file open read( input output from file in c++ how to read from txt file in c++ c++ save to file file read cpp get in file in cpp read text file in cpp how to get the text out of a text file c++ how to read text from file in cpp open a file in c++ how to print to file in c++ tle ios iun c++ load a file in c++ why are files used in c++ ifstream c++ how to read txt from file cpp writing to a file in cpp c++ read writ file what are files IN CPP text file in c++ how to read a header file in c++ for output make a c++ program to open text write to text file based on line c++ reading file in c++ readimagfile c++ .a files in cpp c++ where does ifstream read files reading and writing to files in c++ read() in cpp open() in cpp read from a file c++ how to writeoutput in afile in C++ how to give output in afile in C++ C++ FileWriter print out contents from fi c++ C++ how to read text file ifstream c++ write Files in c++ ifstream ofstream c++ c++ create file opening file in c++ open files c++ writing file line by line c++ c++ fstream tutorial how to write to a file cpp c++ open file for both read and write c++ methods for Loading and Saving files write I with * in c++ how we can write string in file line by line in c++ fstream c++ read text c++ code to write to file from user input read file cpp reading a file c++ reading input from a file e in c++ write file in c++ output in a file c++ read input from file c++ how to take input from and txt file and output in a txt file c++ code C++ sample file output result in file cpp c++ wzl file how to read input from file c++ take input from file in c++ file read in read out c++ output txt file c++ take input file in c++ output into a text file c++ create file c++ how to take inout from file in c++ read a file c++ c++ read file ifstream how to read from text file c++ file stream c++ what doe including ofstream in c++ c++ how to open a file ifstream and ofstream c++ c++ write to txt file c++ io file a file is an instance of fstream c++ how are files read from memory c++ how to read a file in c++ output to a file c++ file input output c++ does fstream object have to close before any writing operations are saved file read and write in c++ read and write to a file in c++ how to delete output in input process for C++ c++ import from file how to open txt file in stream c++ c++ filestream write to file c++ read txt file c++ file input ofstream c++ example writing to text file in c++ writing into a text file c++ file i/o c++ example read data file c++ how to read and write files in c++ how to read files c++ c++ file handling file io with no libraries c++ read file c++ read and write to a file c++ how to print into a text file c++ c++ open output file where to locate file with ofstream c++ file in file out c++ C++ close and open lines readfile c++ linux without cout how to write files in c++ read file in c++ c++ write in file c++ read from file write to a file in C++ ofstream example c++ read in a file than output a file c++ ifstream ofstream io file c++ input file in c++ file types fstream can use reading file c++ ofstream read data c++ ofstream MyExcelFile position how to open vcc file c++ open file c++ read open read file c++ write into a file in c++ read text file c++ example how to output variables in txt file c++ file both read and write c++ io open and put it into an array c++ fstream output c++ c++ reading file input from file in c++ write in file in c++ write to a file c++ how to read file in c++ reading from a file in c++ file handling ifstream example c++ file handling ifstream c++ file handling outfile c++ file IO c++ text writing file IO c++ how to load and print entire content of a file in c++ how to open file c++ read from file c++ c++ open and read file read file with ifstream c++ write in a file using c++ how to see the output of c++ files with an application How to see the output of C++ files C++ file operation c++ how to read a text file output to a text file in c++ read text file c++ fout in c++ how to create a file in c++ how to create a file of fstream c++ how to read files in c++ out file in c++ c++ rewrite file close input file c++ read a text file in c++ reading a file in c++ writing to file in c++ read file in cpp file reader c++ read and write c++ write to file cpp how to read from a file in c++ c++ read and write to file c++ write to text file c++ file how to read from files c++ read using >> c++ read usin >> c++ how to write to a file in c++ c++ file write reading file in c++ how to popen a file in c++ how to open a file in c++ file in c++ write in file c++ c++ write to a file how to write into a file in c++ how to open a file c++ create and input data from a file c++ c++ how to write to a file open a file c++ cpp read file c++ input stream from file objects c++ input stream from file how to output to a file in c++ how to input from a file in c++ input file c++ c++ how to write in a file cpp read in file how to write file in c++ file stream in c++ write file c++ c++ read write file how to read and write in a file c++ c++ open file for reading and writing c++ reading data from file open a file in c++ file io in c++ write to file c++ cpp file read writing to a file in c++ c++ write to file file open c++ c++ program to open a file open file c++ c++ write on file read write to file c++ c++ write file c++ input file c++ read file how to read from file c++ file input c++ file reading c++ c++ file read file c++ open file in c++ how to open file for output in c++ c++ open file c++ open file write how to write to a file in c++ how to write to a file c++ reading files c++ c++ files c++ file IO c++ writing to a file fstream examples files c++ how to use files in c++

Made with love

Welcome Back!

Sign up to unlock all of IQCode features:

Test your skills and track progress
Engage in comprehensive interactive courses
Commit to daily skill-enhancing challenges
Solve practical, real-world issues
Share your insights and learnings

Create an account

Create a Free Account

Sign up to unlock all of IQCode features:

Test your skills and track progress
Engage in comprehensive interactive courses
Commit to daily skill-enhancing challenges
Solve practical, real-world issues
Share your insights and learnings

Create an account

Creating a new code example