public static String collectionToDelimitedString(Collection<String> coll,String delim){
  return collectionToDelimitedString(coll,delim,"","");
}

public static String collectionToDelimitedString ( Collection < String > coll , String delim ) { return collectionToDelimitedString ( coll , delim , "" , "" ) ; }
convenience method to return a collection as a delimited ( e . g . csv ) string . e . g . useful for tostring ( ) implementations .
