question: public static String rawToAsciiString ( byte [ ] quality , int offset , int length ) { final StringBuilder b = new StringBuilder ( ) ; final int end = offset + length ; for ( int i = offset ; i < end ; i ++ ) { b . append ( rawToAsciiQuality ( quality [ i ] ) ) ; } return b . toString ( ) ; }
target:  Converts an array of bytes into a sanger-encoded quality string