Functions are small block of codes or segments or subroutine that are used to perform some operation.
For example :
printf() - to print message or values onto the console.
scanf() - to take input from the console.
getch() - to take a character from the console.
and many more..
Functions always have opening and closing brackets " ( ) ".
Syntax :
return_type function_name (...
Monday, 19 September 2016
06:37
Functions
05:21
Whats the Output ??
#include <iostream>using namespace std;class Test{ int i; // data member public : Test(){ cout<<"\nYou Entered Test Class."; i = 10; showValue();...
Friday, 22 May 2015
22:04
C++ Program to display output
//Program in Dev C++
/*
Header file declaration
*/
#include<iostream> //in Dev C++ you need not give to ".h" extension
#include<conio.h>
using namespace std;
int main()
{
cout<<"My C++ Program with Code ART."; //displaying out by cout
getch();
}
Output:-
...
22:03
Using namespace std in Dev C++
Using namespace std :
Its clear from the above that the phase is having three words:-
using- means using what??
namespace - means using a namespace
Std - it is a kind of namespace
Therefore, the phase defines using a namespace of kind std.
Why to use it ??
The built in C++ library routine are kept in the standard namespace. That includes stuff like cout, cin, string, vector, map etc....
21:48
About Dev C++
Dev C++ - Developer C++ is an advanced C++ IDE ( Integrated Development Environment) which has some xtra advanced faetures as compared to other IDEs like Turbo C++, Borland C++ etc.
Dev C++ also comes in little changes in normal syntaxs.
Dev C++ Vs Other IDEs :
In Dev C++, Header File "iostream"...
21:47
Main Function
Main Funtion is a function from where the execution of the program starts. It is the first function that is called to perform other operation like calling of other functions etc.
Every C++ program must contain a main function. This means that a main function is a mendatory and necessary funtion and an important one.
Syntax:-
return_type main ()
{
// body
}
return_type can...
Tuesday, 5 May 2015
09:45
Header files and their in-built function - 2
2. conio.h - Header File
Syntax:- #include<conio.h>
This is one of most important header file used in C++ after iostream.h. It means CONSOLE INPUT OUTPUT (con-io).
This header file include some of the important in-built functions like:
i. clrscr(): Full form is "Clear Screen".This functions is used to clear all the previous outputs generated by the program which are not of any...
