code: static String implode(final String glue, final String[] what) {
  
          final StringBuilder builder = new StringBuilder();
          for (int i = 0; i < what.length; i++) {
              builder.append(what[i]);
              if (i + 1 != what.length) {
                  builder.append(glue);
              }
          }
          return builder.toString();
      }
docs: Concantenate a String array "what" with glue "glue".
  
  @param what the array of strings to concantenate
  @param glue the glue string to use.
  <p/>
  <pre>
  String[] what = { &quot;a&quot;, &quot;b&quot;, &quot;c&quot; };
  
  String s = Util.implode(&quot;-&quot;, what);
  // result is &quot;a-b-c&quot;
  </pre>
  @return String