basic things all c++ programmers should know about the functions of each line of code you run.we take in everything around us not in one day but rather with gradual forms, that mean in a little bit at a time. today let us additionally look toward the essential thing each c++ programmer ought to know and this things ought to be readily available because they direct you through as you become more grounded in programming with c++.

everything in life has an establishment and that is the beginning point,a great case of that is we people.

we as a whole came into this wold as children and over the long haul we get use to our condition and we become greater and more grounded every day.
same methodical process is pertinent in all that we do as humans.



we take in everything around us not in one day but rather with gradual forms, that mean in a little bit at a time.
today let us additionally look toward the essential thing each c++ programmer ought to know and this things ought to be readily available because they direct you through as you become more grounded in programming with c++.

                                   #include <iostream>

This line is a preprocessing order. All preprocessing mandates inside C++ source code start with 

a # image. This one coordinates the preprocessor to add some predefined source code to our current 

source code before the compiler starts to prepare it. This procedure is done naturally and is 

undetectable to us.

programs (like our own) can utilize. The iostream library contains schedules that handle info and yield  (I/O) that incorporate capacities, for example, printing to the show, getting client contribution from the console, and 

managing documents.

cout and endl, are not some portion of the C++ dialect itself. 

These things, alongside numerous different things identified with information and yield, were created in C++, arranged, 

furthermore, put away in the iostream library. The compiler should know about these iostream 

things so it can arrange our program. The #include order indicates a document, called a header, that 

contains the details for the library code. The compiler checks how we utilize cout and endl 

inside our code against the details in the <iostream> header to guarantee that we are utilizing

The greater part of the projects we compose utilize this #include <iostream> mandate, and a few projects  we will write later on will #include different headers too.

                                        using namespace std;

The two things our program needs to show a message on the screen, cout and endl, have longer 

names: std::cout and std::endl. This utilizing namespace sexually transmitted disease order enables us to preclude the sexually transmitted disease:: prefix and utilize their shorter names. This mandate is discretionary, yet in the event that we discard it, we must utilize the more drawn out names.

The name sexually transmitted disease remains for "standard," and the utilizing namespace sexually transmitted disease line shows that a portion of the names we use in our program are a piece of the purported "standard namespace."

                                              int main() {

This indicates the genuine start of our program. Here we are pronouncing a capacity named fundamental. All 

C++ programs must contain this capacity to be executable. Insights about the importance of int and 

the brackets will show up in later as we go gradually.
The opening wavy support toward the finish of the line denotes the start of the body of a capacity. The body of a capacity contains the announcements the capacity is to execute.

            cout << "This is a simple C++ program!"<< endl;

The body of our primary capacity contains just a single articulation. This statements coordinates the executing program to print the message This is a straightforward C++ program! on the screen. An announcement is the central unit of execution in a C++ program. Capacities contain proclamations that the compiler converts into executable machine dialect guidelines. C++ has an assortment of various types of explanations, and the sections that take after investigate these different sorts of articulations. All statements in C++ end with a semicolon (;).

                                                       }

The end curly brace  or wavy support denotes the finish of the body of a capacity. Both the open wavy or curly brace support and close wavy support are required for each capacity definition.

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