program array with pointer in c

#include"stdio.h"
#include"conio.h"
void main()
{
int arr[4]={1,2,3,4};
int a,*b;
for(a=0;a<4;a++)
{
printf("value of arr[%d] = %d",a,*b);
printf("address of arr[%d] = %u",a,b);
b=b+1;
}
getch();
}