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CPP Example


Lets print “Hello CPP” as the first CPP program and than understand it in detail.

#include <iostream.h>
#include<conio.h> 
void main()
{
clrscr();  
cout <<"Hello CPP!";
getch(); 
}

Output

Hello CPP!

Description:

#include <iostream.h> :

“#include” is a preprocessor directive used to include a library file in the code. The header file “iostream.h” is included in the source code to use the pre-defined functions “cin” and “cout”.

#include <conio.h>: The header file “conio.h” is included in the source code to use the pre-defined functions “getch”.

void main() :

Void represents the data type of the main function which is a must for every C program.

{} :

{} represents the opening and closing of the main function.

cout<<“Hello C!”; :

The cout function outputs the string on the console screen.

getch():

The getch() function is used to block the screen till any key is pressed. It simply asks for a single character.

Compilation and Execution:

Click on Compile menu and then on Run menu or click ctrl+F9 directly, both for compile and run.

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