Enter a key and display it's ascii value in c++

#include<iostream>
using namespace std;
int main ()
{
    char c;
    cout << "Enter a character : ";
    cin >> c;
    cout << "ASCII value of " << c <<" is :  " << (int)c;
    return 0;
}

#include<iostream.h>
#include<conio.h>
void main()
{
  char a;
  clrscr();
  cout<<"\nEnter any key: ";
  cin>>a;
  cout<<"ASCII value of "<<a<<" is: "<<int(a);
  getch();
}