Could someone tell.....

Question

what is the diffrence between those two codes:

♦first:
int var=5;
cout<<&var;

♦second:
int var=5;
int*p;
p=&var;
cout<<p;

is it always necessary to declare a pointer in order to access the adress of var? can we access it without using any pointers?? as we did in the 1st one?? what is the difference?

Answer 1

there is no difference in the output but
first :- there is no usage of memory.
second:- there is usage of memory bcoz it will store the (var) and also store *p which makes more memory compare to
first one

Answer 2

your welcome anytime

Answer 3

@Yesh thank you

Answer 4

thanx