question: private static int skipWhiteSpace ( String rawdata , int i ) { int length = rawdata . length ( ) ; if ( i < length ) { char c = rawdata . charAt ( i ) ; while ( ( i < length ) && Character . isWhitespace ( c ) ) { ++ i ; c = rawdata . charAt ( i ) ; } } return i ; }
target:  return the index of the first non white space character in rawdata at or after index i.