How can I concatenate two arrays in Java?

Question

I need to concatenate two String arrays in Java.

void f(String[] first, String[] second) {
    String[] both = ???
}

What is t

Answer 1

A simple variation allowing the joining of more than one array:

public static String[] join(String[]...arrays) {

    final List output = new ArrayList();

    for(String[] array : arrays) {
        output.addAll(Arrays.asList(array));
    }

    return output.toArray(new String[output.size()]);
}