Java equivalents of C# String.Format() and String.Join()

Question

I know this is a bit of a newbie question, but are there equivalents to C#'s string operations in Java?

Specifically, I'm talking about String.Format and String.Join.

Answer 1

The Java String object has a format method (as of 1.5), but no join method.

To get a bunch of useful String utility methods not already included you could use org.apache.commons.lang.StringUtils.

Answer 2

String.format. As for join, you need to write your own:

 static String join(Collection<?> s, String delimiter) {      StringBuilder builder = new StringBuilder();      Iterator<?> iter = s.iterator();      while (iter.hasNext()) {          builder.append(iter.next());          if (!iter.hasNext()) {            break;                            }          builder.append(delimiter);      }      return builder.toString();  } 

The above comes from http://snippets.dzone.com/posts/show/91