Simple Program With C++

There are various items that must be ready before normal programming may be done on a computer, including : 

• Language of Programming: You must decide which language of programming to employ. Programming languages like C++, Java, Python, and others are widely available.
• Text Editor or IDE: You will need a text editor or Integrated Development Environment (IDE) to write and save your program code. Some examples of popular text editors and IDEs include Notepad++, Visual Studio Code, and PyCharm.

Computer basic standard program

How to make a simple program with c++ 

The following is an example of how to create a simple program in C++ :

#include <iostream>

using namespace std;

int main ( )

{

    // Displays the message "Hello World!" on screen

    cout << "Hello World!" << endl;

    returns 0;

}

Explanation :

• The C++ standard input-output capability is provided by the iostream library, which is loaded using the #include iostream> directive.
• using namespace std; used to shorten writing cout and cin.
• A C++ program's main function, int main(), is a requirement for all programs. The first time the application is run, this function will be used.
• cout << "Hello World!" << endl; used to display the message "Hello World!" on screen.
• returns 0; used to end the main() function and returns a value of 0 as the program output code.

Running C++ Programs :

1. Open a C++ programming text editor or integrated development environment (IDE).

2. Type the program code above in a text editor or IDE.

3. Save the program code with a file name that ends with the extension ".cpp" (for example, "helloworld.cpp").

4. Launch a terminal or command prompt.

5. Change to the directory where the program files are stored using the "cd" command (for example, "cd C:\Users\username\Documents").

6. Compile the program using the command "g++ filename.cpp -o filename.exe" (for example, "g++ helloworld.cpp -o helloworld.exe").

7. Run the program using the "./filename.exe" command (eg "./helloworld.exe").

8. The screen will show the message "Hello World!" from the software.

This is how to write a straightforward C++ program and execute it from the command line or terminal. ✔