Is there a way to join strings, each with a specific surrounding string?

Question

I\'m looking to use guava\'s Joiner to join List into one string, but with surrounding strings around each one in the list. So I want

Answer 1

The way to do this is with a transform, first:

 Joiner.on(", ").join(Iterables.transform(names, new Function<String, String>() {
   public String apply(String str) { return "your guest " + str + " is here"; }
 }));

Answer 2

How about

    String str = "your guest " + Joiner.on(" is here, your guest ").join(names) + " is here";

Answer 3

if Joiner is not a must you can use String.format()

public static void main(String[] args) {
        List<String> names = Arrays.asList("John", "Mary", "Henry");
        StringBuilder builder = new StringBuilder();

        for(int i=0; i<names.size();i++){
            builder.append(String.format("your guest %s is here, ", names.get(i)));
        }
        System.out.println(builder.substring(0,builder.length()-2).toString());
    }