question: private static String cleanAlias ( String alias ) { char [ ] chars = alias . toCharArray ( ) ; if ( ! Character . isLetter ( chars [ 0 ] ) ) { for ( int i = 1 ; i < chars . length ; i ++ ) { if ( Character . isLetter ( chars [ i ] ) ) { return alias . substring ( i ) ; } } } return alias ; }
target:  Clean the generated alias by removing any non-alpha characters from the beginning.