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Simple Program for Write File Operation

1 min read Updated June 30, 2026
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To perform the write operation with in a file.

Simple Program for Write File Operation Algorithm/Steps:

  • STEP 1: Start the program.
  • STEP 2: Declare the variables.
  • STEP 3: Read the file name.
  • STEP 4: open the file to write the contents.
  • STEP 5: writing the file contents up to reach a particular condition.
  • STEP 6: Stop the program.

Simple Program for Write File Operation Example

#include<iostream.h>
#include<stdio.h>
#include<conio.h>
#include<fstream.h>

void main() {
    char c, fname[10];
    ofstream out;
    cout << "Enter File name:";
    cin>>fname;
    out.open(fname);
    cout << "Enter contents to store in file (Enter # at end):\n";
    while ((c = getchar()) != '#') {
        out << c;
    }
    out.close();
    getch();
}

Sample Output

Enter File name: one.txt
Enter contents to store in file (enter # at end)
 
Master of Computer Applications - NEW#

How It Works

This C++ program demonstrates Simple Program for Write File Operation. It first reads the required values as input, then walks through the data with a loop to compute the result, and finally prints the output shown in the Sample Output above.

  1. Declare the variables that hold the program’s data.
  2. Read the input values that the program will work with.
  3. Iterate over the data using a loop to apply the logic.
  4. Print the final result to the console so you can compare it with the sample output.

Try changing the input values and re-running the program to see how the output changes — this is the fastest way to understand how the logic behaves.

Learn the concept first, then study the code:

Frequently Asked Questions

What does this C++ program do?
It is a C++ example program that demonstrates Simple Program for Write File Operation, including the complete source code and the expected sample output.
How do I compile and run this C++ program?
Save the code in a `.cpp` file, compile it with `g++ filename.cpp -o program`, then run it with `./program` (or `program.exe` on Windows).
What concepts does this example use?
This example uses loops to iterate over data, arrays and reading user input, illustrating a common pattern in C++ programming.

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