Java - convert byte array to String

int len = (int)c.getLength();

            if (len > 0) {
                 int actual = 0;
                 int bytesread = 0 ;
                 byte[] data = new byte[len];
                 while ((bytesread != len) && (actual != -1)) {
                     actual = is.read(data, bytesread, len - bytesread);
                     bytesread += actual;
                    
                 }

//assuming utf-8 encoding
                 String test = new String(data,0,data.length,"UTF8");
                 System.out.println(test);