question: public static String deleteAny ( String inString , String charsToDelete ) { if ( ! hasLength ( inString ) || ! hasLength ( charsToDelete ) ) { return inString ; } StringBuilder sb = new StringBuilder ( ) ; for ( int i = 0 ; i < inString . length ( ) ; i ++ ) { char c = inString . charAt ( i ) ; if ( charsToDelete . indexOf ( c ) == - 1 ) { sb . append ( c ) ; } } return sb . toString ( ) ; }
target:  Delete any character in a given String.