Example for find the given value is odd or even in C++

Prog 20: write a program to find the given value is odd or even

#include<iostream.h>

#include<conio.h>

class number

{

int a;

public:

void getdata();

void display();

};

void number::display()

{

getdata();

if(a%2==0)

cout<<"\n no is even";

else

cout<<"\n No is odd";

}

void number::getdata()

{

cout<<"enter a";

cin>>a;

}

void main()

{

clrscr(); 
number n; 
n.display();
 getch();

}

Output:

enter a

7

No is odd