can somebody explain this?

Question

can some one please explain this code to me?
int a=3;
int b=2;
b=a++;
cout<<++b;

Answer 1

first a is 3
b is 2

and then b is exchange to a++ ( its a increment )

now,

a is 4
b is 3

cout<<++b =
cout<<4

the answer is 4

Answer 2

thanks blizz