Java equals plus operator
equals-operator, java, operators
Solution
`=+` is the assignment operation and the unary `+` afterwards. It's perfectly valid and what happens is:
a = (+b);
It's pretty much the same when you want to assign the negative value of a variable to another variable:
a = (-b); //a will be assigned with -10
Also, `=*` doesn't compile, because there's no `*` unary operator.
Problem
I need to explain this strange operator =+ (equal plus) Example #1: ``` Double a = new Double(5); Double b = new Double(10); a += b ``` result: ``` a=15.0 b=10.0 ``` Example #2: ``` Double a = new Double(5); Double b = new Double(10); a =+ b ``` result: ``` a=10.0 b=10.0 ``` I understand the first example, but please explain me what this =+ operator did in example no.2. And another interesting fact is, that these operators are valid and compilable: +=, -=, *=, /= but any of these two won't compile: =*, =/