Difference between b=b++ and b++ [duplicate]

Answer 1

Hint:

int b = 0, c;
c = b++;
c = b++;
c = b++;
c = b++;
System.out.println(c);

c now will be 3 like you thought, but because in your question you're assigning b, it'll get 0, because as already explained, it's the same as:

int tmp = b;
b = b + 1;
b = tmp;