code: public class Quibbler {
  
  	public static String quibble(String[] words) {
  		String qText = "{";
  		for(int wIndex = 0; wIndex < words.length; wIndex++) {
  			qText += words[wIndex] + (wIndex == words.length-1 ? "" :
  						  wIndex == words.length-2 ? " and " :
  						  ", ";
  		}
  		qText += "}";
  		return qText;
  	}
  	
  	public static void main(String[] args) {
  		System.out.println(quibble(new String[]{}));
  		System.out.println(quibble(new String[]{"ABC"}));
  		System.out.println(quibble(new String[]{"ABC", "DEF"}));
  		System.out.println(quibble(new String[]{"ABC", "DEF", "G"}));
  		System.out.println(quibble(new String[]{"ABC", "DEF", "G", "H"}));
  	}
  }
  