Resolve The Error of Bractets in Day 02 Content

docs/day-02/first-cpp-program.md

@@ -1,41 +1,64 @@
 ---
 sidebar_position: 1
-title: "First CPP Program"
-description: "Learn how to write and execute your first C Plus Plys program using a simple 'Hello, World!' example."
-sidebar_label: "First CPP Program"
+title: "First C++ Program: Hello, World!"
+description: "Learn how to write and execute your first C++ program with a simple 'Hello, World!' example."
+sidebar_label: "First C++ Program"
 slug: first-cpp-program
 ---
 
+## Your First Steps in C++: Hello, World!
 
+Welcome to the exciting world of C++ programming! Today, we'll embark on a journey together, crafting our very first C++ program - the classic "Hello, World!". This simple program lays the foundation for understanding core C++ concepts.
 
-### 1. Write a simple "Hello, World!" program in C++.
-```cpp
+**Setting Up**
+
+Before diving into code, you'll need a text editor or an Integrated Development Environment (IDE) to write and compile your C++ program. Popular choices include Notepad++, Visual Studio Code, or Code::Blocks.
+
+![first-programme-in-cpp](../../static/img/day-02/first-program.png) 
+
+**Hello, World! Breakdown**
+
+Let's dissect the code line by line and understand its purpose:
+
+```c++
 #include <iostream>
 
+using namespace std;
+
 int main() {
-    std::cout << "Hello, World!";
-    return 0;
+  cout << "Hello, World!" << endl;
+  return 0;
 }
 ```
-### 2. Output of the program.
-When you run this program, it will display the following output:
-``` 
-Hello, World!
-```
-![first-programme-in-cpp](../../static/img/day-02/first-program.png) 
 
-### 3. Explain the code line by line.
-- #include <iostream>: This line includes the standard input/output stream library (iostream). It allows us to use the std::cout (output) and std::cin (input) streams.
-- int main(): This is the main function where program execution begins. It has an integer return type (int) because it returns an exit status to the operating system (usually 0 for successful execution).
-- {}: The curly braces define the scope of the main function. Everything inside these braces belongs to the main function.
-- std::cout << "Hello, World!";: This line uses the std::cout stream to print the text “Hello, World!” to the console. The << operator is used for output.
-- return 0;: The return statement indicates that the program has completed successfully. The value 0 is returned to the operating system.
-### 4. Explain Basic Structure of C++ Program.
-- Preprocessor Directives: These lines start with # and include necessary libraries or perform other preprocessing tasks (e.g., #include).
-- Function Definitions: The main function is the entry point of the program. Other functions can be defined as needed.
-- Statements: Inside functions, we write statements (like the std::cout line) that perform actions.
-- Comments: Comments (single-line or multi-line) help explain the code to other programmers.
+1. **`#include <iostream>`:** This line tells the compiler to include the `iostream` header file, which provides functionalities for input and output operations in C++.
+
+2. **`using namespace std;`:** This statement instructs the code to use elements from the `std` namespace, which contains standard C++ objects like `cout` (used for output) and `endl` (used for adding a newline character).
+
+3. **`int main() { ... }`:** The `main` function is the entry point of your program. Any code execution begins here. The `int` keyword specifies that the `main` function will return an integer value (in this case, 0 to indicate successful execution).
+
+4. **`cout << "Hello, World!" << endl;`:** This line performs the magic!  
+   - `cout` is an object of the `ostream` class used for standard output.
+   - `<<` is the insertion operator, which sends data to the output stream.
+   - `"Hello, World!"` is the string literal (text enclosed in double quotes) that we want to print.
+   - `endl` adds a newline character after the printed message.
+
+5. **`return 0;`:** This statement indicates successful program termination by returning the value 0 from the `main` function.
+
+## **Compiling and Running**
+
+Once you've written the code, save the file with a `.cpp` extension (e.g., `helloworld.cpp`). Use your chosen compiler to compile the code and generate an executable file. Running the executable will display the glorious "Hello, World!" message on your screen.
+
+## **Congratulations!**
+
+You've successfully created your first C++ program! This is a significant milestone in your programming journey. Now that you've grasped the fundamentals, you can explore more complex C++ concepts and build upon this foundation to create amazing programs.
 
+## **Further Exploration**
 
+There's a vast world of C++ waiting to be discovered. Here are some suggestions for your next steps:
 
+- Experiment with different messages and explore various output formatting options.
+- Try taking user input using the `cin` object from the `iostream` header.
+- Learn about variables, data types, and operators to perform calculations and manipulations within your program.
 
+Remember, practice is key! The more you code, the more comfortable you'll become with C++. Happy coding!