C++ Hello World : C++ beginner tutorial

After setting up your compiler as explained in the previous article How to setup a compiler for modern c++ this post will guide you through creating an hello world program in c++, of course we will go past that you just need to stay tuned!

C++ hello world example

create a new c++ project in your ide then paste the following code.

#include<iostream>

int main(){
std::cout<<"hello world";

}

compile and run and see the magic... but wait it is not all magic, it all follows a principle they call syntax.. ok so we are going to explain

the first line #include<iostream>
is what they call the prepocessor which is just like a message to the compiler, in this case we are telling the comiler to include a library which is used for stream input and output and well a stream is just a flow of byte or say characters. so the iostream library is what you need when you what to input or output characters it contains cout for output and cin for input.
the int main(){} is the program entry point the place where your code begin execution.
std is a namespace just think of namespace like a wrapper of functions for now, so std is a wrapper that contain all c++ standard libraries include cin and cout, believe me there are tons of non standard library for c++ you can use in you code but for now run this code and make sure you understand every line if there are questions or error feel free to ask in the comment section.

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Admin @Idea4novice : Tech Weblog On How Tos, Tips And Tricks

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