Lucene search result -

i have below data index in lucene 4.8 , code.

finance expense admin expenses transaction expense salary expenses 

indexing:

   try {     writer = createwriter(ramdirectory);     for(string line : readfile(file_path)) {         string[] split = line.split(",");         document doc = new document();         doc.add(new textfield("id", split[0].trim(), field.store.yes));         doc.add(new textfield("name", split[1].trim(), field.store.yes));                                                writer.adddocument(doc);                     }     writer.commit();             } {     if(writer != null) {         writer.close();      } } 

search

indexsearcher searcher = new indexsearcher(directoryreader.open(ramdirectory)); queryparser nameqparser = new queryparser(version.lucene_48, "name", new standardanalyzer(version.lucene_48)); query query = nameqparser.parse("expense"); topdocs queryresults = searcher.search(query, 10); 

above code return below 2 result. not return result has 's' in @ end.

current outcome:

finance expense transaction expense 

expected outcome:

finance expense admin expenses transaction expense salary expenses 

please suggest wrong in code.

you use wildcardquery, because word expense contains in 4 document can pass search string *expense* return documents having expense in name field.

don't forget set queryparser allow leading wildcards following:

queryparser.setallowleadingwildcard(true) 

make following changes in code:

nameqparser.setallowleadingwildcard(true); query query = nameqparser.parse("*expense*");