+ operator for String in Java [duplicate]

Question

This question already has an answer here:

• How does the String class override the + operator? 7 answers

I saw this question a few minutes ago, and decided to take a look in the java String class to check if there was some overloading for the + operator.

I couldn't find anything, but I know I can do this

String ab = "ab";
String cd = "cd";
String both = ab + cd; //both = "abcd"

Where's that implemented?

Answer 1

It is handled by the compiler.