+= vs =+ in Java

Question

I am familiar with the += operator in java, that if executed like:

i += 2;

is the same as:

i = i + 2;

But what exactly is =+? It compiles fine in Java, but as far as I can tell it only assigns the result right-hand-side expression to the left-hand-side variable. i.e.

i =+ 2

is the same as:

i = 2

Anyone know what exactly is going on here? Apologies if this has been asked, the SEO for any question regarding operators is always wonky... Thanks!

Answer 1

i =+ 2 is the same as

i = +2;

i.e., the + is the unary + operator.

Answer 2

i =+ 2 is equivalent to i = +2 where + is the unary plus operator