Tutorial C++
before making a program we must know what C++ syntax is?
1. Syntax C++
Example
Example explanation
Line 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.
Line 2: using namespace std;
means that we can use names for objects and variables from the standard library.
Line 3: A blank line.
C++ ignores white space. But we use it to make the code more readable.
Line 4: Another thing that always appear in a C++ program, is int main().
This is called a function. Any code inside its curly brackets {} will be executed.
Line 5: cout (pronounced "see-out") is an object used together with the insertion
operator (<<) to output/print text. In our example it will output "Hello World!".
before making a program we must know what C++ syntax is?
1. Syntax C++
Example
Example explanation
Line 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.
Line 2: using namespace std;
means that we can use names for objects and variables from the standard library.
Line 3: A blank line.
C++ ignores white space. But we use it to make the code more readable.
Line 4: Another thing that always appear in a C++ program, is int main().
This is called a function. Any code inside its curly brackets {} will be executed.
Line 5: cout (pronounced "see-out") is an object used together with the insertion
operator (<<) to output/print text. In our example it will output "Hello World!".
