tutorial C++ part1

Basic lesson of programing in C++. I will show how to print text at screen.

Are you ready ?

First at all you need to make sure that hello world program is compiling. 
#include <iostream>
#include <cstdlib>
using namespace std;
 
int main()
{
    cout<<"hello world"<<endl;
    return 0;
}
If that do not work then go back to lesson 0.

Adding anytinig to hello world

I will explain later what #include mean, at the moment let say that it need to be in every program. Same with using namespace std; and int main(). 
#include <iostream>
#include <cstdlib>
using namespace std;
 
int main()
{
    // At the moment we will be editing only here.
    return 0;
}
We will put there many stange commands. Every command need to be end with ;

Print text at screen

Printing text at screen command begins with cout. After that come << and that what you want to print at screen. In case of printing some text at screen you need to write that text between " ". 
#include <iostream>
#include <cstdlib>
using namespace std;
 
int main()
{
    cout<<"example text to show";
    return 0;
}
That will print at screen: 
example text to show
Another example program: 
#include <iostream>
#include <cstdlib>
using namespace std;
 
int main()
{
    cout<<"example";
    cout<<"text";
    cout<<"to";
    cout<<"show";
    return 0;
}
output: 
exampletexttoshow
From now I will show only important fragment of code. I'm sure you will know where to put it. 
cout<<"e";
    cout<<"x";
    cout<<"a";
    cout<<"m";
    cout<<"p";
    cout<<"l";
    cout<<"e";
    cout<<" ";
    cout<<"t";
    cout<<"e";
    cout<<"x";
    cout<<"t";
output: 
example text
program: 
cout<<"example"<<" "<<"text";
output: 
example text

Printing Enter character

If some text is not between " " then it need to be some special text. For example it can be endl witch will work like enter on your keyboard. program: 
cout<<"1";
    cout<<endl;
    cout<<"2";
    cout<<endl;
output: 
1
2
program: 
cout<<"example text 1"<<endl<<"example text 2";
output: 
example text 1
example text 2

Printing special characters

\ work differently than any other character if you put it between " ". It give special meaning to character after it. Way to print " character: 
cout<<"example of printing \" character"<<endl;
output: 
example of printing " character
Other way of printing enter: 
cout<<"example 1\nexample 2\n";
output: 
example 1
example 2
Way to print \: 
cout<<"example\"<<endl;
output: 
example\
Tab: 
cout<<"\t123"<<endl;
    cout<<"123\t123"<<endl;
    cout<<"123\tx\t123"<<endl;
output: 
    123
1   123
123 x   123
I know that printing text at screen is not big deal, but I can't write too much in first lesson.