Program for understanding the concept of array of pointers

/* program for understanding the concept of array of pointers */
#include<stdio.h>
main ( )
{
    int *arr[3];
    int a = 5, b = 10, c = 15,i;
    arr[0] = &a;
    arr[1] = &b;
    arr[2] = &c;
    for ( i=0;i< 3;i++)
    {
        printf ( "address = %u\t", arr[i] );
        printf ( " value = %d \n",*(arr[i]) );
    }
}