GETTING STARTED WITH C++

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                    C++




1. What is C++?

   C++ was developed by Bjarne Stroustrup at Bell labs in 1979, as an extension to the C language. C++ is a cross-platformed language that can be used to create high-performance applications. The language was updated 3 major times in 2011, 2014, and 2017 to C++11, C++14, and C++17 respectively. 

2. Why Use C++?

   C++ is one of the world's most popular programming languages. C++ is an object oriented language which gives a clear structure to programs and allows code to be reused. C++ is portable and can be used to develop applications that can be adapted to multiple platforms. C++ can be found in today's operating systems, Graphical User Interfaces, and embedded systems. C++ is fun and easy to learn!


To start using C++, you need two things:
  • A text editor, like Notepad, to write C++ code
  • A compiler, like GCC, to translate the C++ code into a language that the computer will understand

3. Install code blocks IDE.

  Popular IDE's include Code::Blocks, Eclipse, and Visual Studio. These are all free, and they can be used to both edit and debug C++ code.
  We will use Code::Blocks.
You can find the latest version of Codeblocks at (click here)
codeblocks downloads Download the mingw-setup.exe file, which will install the text editor with a compiler.

4. Quickstart.

  Let's create our first C++ file.
  Open Codeblocks and go to File > New > Empty File.
  Write the following C++ code and save the file as HelloWorld.cpp (File > Save File as):


   HelloWorld.cpp

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World!";
  return 0;
}
Now how to run the code In Codeblocks?

 Then, go to Build > Build and Run to run (execute) the program. The result will look something to this:


You have now written and executed your first C++ program.


Example explained


1. #include <iostream> is a header file library that lets us work with input and output objects, such as cout (used in line 5). Header files add functionality to C++ programs.



2. using namespace std means that we can use names for objects and variables from the standard library.


3. int main(). This is called a function. Any code inside its curly brackets {} will be executed.

4. cout is an object used to output/print text. In our example it will output "Hello World".

Note: Every C++ statement ends with a semicolon ;.
Note: The body of int main() could also been written as:
int main () { cout << "Hello World! "; return 0; }

5. return 0 ends the main function.


visit following post 
1. first programming language
2. how to start programming


                                          THANKYOU! 




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