#include <iostream>
using namespace std;

int main()
{
   int b;
   double f;
   char ch='a';
   int a[20];

   cout <<"sizeof(ch):"<<sizeof(ch)<<endl;
   cout <<"address of ch:"<<&ch<<endl;

   cout <<"sizeof(b):"<<sizeof(b)<<endl;
   cout <<"address of b:"<<&b<<endl;

   cout <<"sizeof(f):"<<sizeof(f)<<endl;
   cout <<"address of f:"<<&f<<endl;

   cout <<"Display (int) array variable a itself:"<<a<<endl;

   cout <<"&a[0], address of a[0]:"<< &(a[0])<<endl;
   cout <<"&a[1], address of a[1]:"<< &(a[1])<<endl;
   cout <<"&a[2], address of a[2]:"<< &a[2]<<endl;

   char str[20]="To be or not to be?";

   cout <<"Display (char) array variable str itself:"<<str<<endl;

   cout <<"&str[0], address of str[0]:"<< &(str[0])<<endl;
   cout <<"&str[1], address of str[1]:"<< &(str[1])<<endl;
   cout <<"&str[2], address of str[2]:"<< &str[2]<<endl;

   cout <<"&str[0], address of str[0]:"<< (int *) &(str[0])<<endl;
   cout <<"&str[1], address of str[1]:"<< (int *) &(str[1])<<endl;
   cout <<"&str[2], address of str[2]:"<< (int *) &str[2]<<endl;

   int * q = NULL;
   cout << q <<endl;


   char * pChar;
   int * p; 

   cout <<"size of p"<< sizeof(p)<<endl;
   cout <<"size of pChar"<< sizeof(pChar)<<endl;

   cout <<"p="<<(int *)pChar<<endl;
   cout <<"p="<<p<<endl;
}