Pre- and postincrement in Java

Question

I just wanted to create a little Java-Puzzle, but I puzzled myself. One part of the puzzle is:

What does the following piece of code do:

Answer 1

You're right regarding the right part evaluation, but you're missing a detail regarding the assignment.

Run this :

i = i++;

or this :

i += i++;

After both operations, i still has its original value.

That's because i is evaluated on the left before the right part of the assignment.

So in your case, you're adding 8 to 1, not to 4.