Decrement and assignment operator in java

Question

Can somebody explain why output of the code below is 1.

int i = 1;
i=i--;
System.out.println(i); // 1

@Mr.White, even better `i--;` or `--i;` – Konstantin Yovkov Feb 01 '16 at 14:17 — Konstantin Yovkov, Feb 01 '16 at 14:17
Your use-case is the actually the expected behaviour. – Shark Feb 01 '16 at 14:19 — Shark, Feb 01 '16 at 14:19
it's better to write i-- or i -= 1 – user43968 Feb 01 '16 at 14:19 — user43968, Feb 01 '16 at 14:19

score 5 · Accepted Answer · answered Feb 01 '16 at 14:17

i-- does the following steps:

so the statement i = i-- does the following:

In the end i is 1

To make it a bit more clear you could say the line i = i--; does pretty much the same as this code:

int j = i;
i = i-1;
i = j;

1 Answers1