question: public static String [ ] decodeArray ( String encodedArray ) { String [ ] items = encodedArray . split ( "_\\." ) ; ArrayList < String > list = new ArrayList < String > ( ) ; for ( int i = 0 ; i < items . length ; i ++ ) { String item = items [ i ] ; item = gsub ( "__" , "_" , item ) ; if ( ! item . equals ( "" ) ) { list . add ( item ) ; } } return list . toArray ( new String [ list . size ( ) ] ) ; }
target:  Decodes a String generated by encodeArray.