Write a program to accept a number 'n' from the user and print the sum of all even numbers from 2 to number 'n'.
#include "iostream.h"
#include "conio.h"
class demo
{
public:
int a,b,i;
void sum ();
};
void demo ::sum()
{
cout<<"\n\nEnter a number : ";
cin >> a;
for(i=2,b=0;i<=a;i++)
{
if(i%2==0)
{
b= b+i;
cout<
if(i
cout<<"+";
}
}
}
cout<<"="<
}
void main()
{
clrscr();
demo d;
cout <<"Welcome to find no. & total of even no.s\n\n";
d.sum();
getch();
}
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