Does Java have something like C#'s ref and out keywords?

Question

Something like the following:

ref example:

void changeString(ref String str) {
    str = \"def\";
}

void main() {
    String abc = \"abc\";
    chan         


        

Answer 1

Three solutions not officially, explicitly mentioned:

ArrayList<String> doThings() {
  //
}

void doThings(ArrayList<String> list) {
  //
}

Pair<String, String> doThings() {
  //
}

For Pair, I would recommend: https://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/tuple/Pair.html