C++ Singleton File Reader/Writer

A simple C++ project that demonstrates file reading and writing using the Singleton design pattern.

Description

This project provides a basic example of file input and output in C++.
It uses the Singleton design pattern to ensure that only one instance of the FileReaderWriter class exists throughout the program.

The class supports:

• Writing text to a file
• Reading text from a file

Features

• Implemented in C++
• Uses the Singleton design pattern
• Simple file read/write operations
• Beginner-friendly example

Code Overview

The FileReaderWriter class includes:

• getInstance()
  Returns the single instance of the class

• write(fileName, content)
  Writes content to a file

• read(fileName)
  Reads content from a file

Example Output

Hello Coders!

How It Works

1. The program gets the single instance of FileReaderWriter
2. It writes "Hello Coders!" into testFile.txt
3. It reads the content from the same file
4. It prints the result to the console

Requirements

• C++ compiler
• Standard C++ library

How to Run

1. Save the code in a .cpp file
2. Compile it using a C++ compiler:

g++ main.cpp -o app