StandardAnalyzer analyzer = new StandardAnalyzer(); Directory index = new RAMDirectory(); IndexWriterConfig config = new IndexWriterConfig(analyzer); IndexWriter w = new IndexWriter(index, config); addDoc(w, "Lucene in Action", "193398817"); addDoc(w, "Lucene for Dummies", "55320055Z"); addDoc(w, "Managing Gigabytes", "55063554A"); addDoc(w, "The Art of Computer Science", "9900333X"); w.close();