Join strings with different last delimiter

Question

Using stream.collect(Collectors.joining(\", \")) I can easily join all the strings of my stream delimited by a comma. A possible result would be \"a, b, c

Answer 1

If you are looking for old Java solution, using Guava libraries would be easy.

    List values = Arrays.asList("a", "b", "c");
    String output = Joiner.on(",").join(values);
    output = output.substring(0, output.lastIndexOf(","))+" and "+values.get(values.size()-1);
    System.out.println(output);//a,b and c