Can someone explain this solution for me?

Question

int i = 1;
for(; i<5; i++) {
i*=i;
}
system.out.print(i);

The solution is 5 but I'm not figuring out how it's arrived there.

Thanks!

Answer 1

put a system.out.print(i) inside the loop after the multiplication. this may help you understand what is going on

Answer 2

Did you have deleted my answer? I'm sure to have already posted here ^^

> start: i == 1
> entering 'for' loop, no initialization, always i == 1
> i *= i <=> i = i*i so i == 1
> i is incremented, so i == 2
> i is < 5, so loop again
> i = 2*2 == 4
> i is incremented, so i == 5
> i is not < 5, so exit loop
> print(i) => 5

(and I had always the text pasted in clipboard :P)

Answer 3

Thanks guys!