What is the style recommendation for the Java string concatenation operator “+”?
Edit: Specifically, should it be used or not?
What is the style recommendation for the Java string concatenation operator +? Edit: Specifically,
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What is the style recommendation for the Java string concatenation operator “+”?
Edit: Specifically, should it be used or not?
Thinking in Java (Eckel) says that the overloaded + operator is implemented using StringBuilder (although not all compilers may be supporting this as per alphazero’s answer) and thus multiple String objects and the associated memory use and garbage collection are avoided. Given this, I would answer my own question by saying that the + operator is probably fine, style-wise. The only caveat is that the + is the only instance of overloading in the language and that exceptionalism might count as a minor reason not to use it. In retrospect, the advantage of terseness is pretty significant in some situations and that has got to count for a lot of style.