private static String serialize(final Set set, final String sep) {
	
		Iterator it = set.iterator();
	
		String s = "";
	
		while (it.hasNext()) {
			
			s = s + it.next().toString();
			
			if (it.hasNext())
				s = s + sep;
		}
		
		return s;
	}
private static String serialize(final Set set, final String sep) {
	
		Iterator it = set.iterator();
	
		String s = "";
	
		while (it.hasNext()) {
			
			s = s + it.next().toString();
			
			if (it.hasNext())
				s = s + sep;
		}
		
		return s;
	}
private static String serialize ( final Set set , final String sep ) { Iterator it = set . iterator ( ) ; String s = "" ; while ( it . hasNext ( ) ) { s = s + it . next ( ) . toString ( ) ; if ( it . hasNext ( ) ) s = s + sep ; } return s ; }
Serialises the items of a set into a string. Each item must have a
meaningful {@code toString()} method.

@param set The set to serialise.
@param sep The string separator to apply.

@return The serialised set as string.
Serialises the items of a set into a string . Each item must have a meaningful { @code toString () } method .