question: protected static String standardizeKeyword ( String keyword ) { if ( keyword == null ) return null ; keyword = keyword . trim ( ) ; if ( keyword . length ( ) == 0 ) return null ; keyword = keyword . toUpperCase ( ) ; StringBuffer sb = new StringBuffer ( ) ; char [ ] chars = keyword . toCharArray ( ) ; for ( int i = 0 ; i < chars . length ; i ++ ) { char c = chars [ i ] ; sb . append ( standardizeCharacter ( c ) ) ; } return sb . toString ( ) ; }
target:  Clean up & standardize Keyword