String valueOf vs concatenation with empty string

Question

I am working in Java code optimization. I\'m unclear about the difference between String.valueOf or the +\"\" sign:

int intVar = 1;         


        

Answer 1

I'd prefer valueOf(), because I think it's more readable and explicit.

Any concerns about performance are micro-optimizations that wouldn't be measurable. I wouldn't worry about them until I could take a measurement and see that they made a difference.