Java ByteCode

Hi guys,
I have some questions about java bytecode..
1-java bytecode is cointained in the .Class file,that is autogenerated
by Ecliplse(the ide I'm using) or by javac.
I need to extract the bytecode from a .class file,and actually I'm
using this piece of code :

        //leggo il codice dal file java e lo memorizzo come byte
        file=new File(path);
        InputStream is;
        try {

            is = new FileInputStream(file);
            long length = file.length();// Get the size of the file
            // You cannot create an array using a long type.
            // It needs to be an int type.
            // Before converting to an int type, check
            // to ensure that file is not larger than Integer.MAX_VALUE.
            if (length > Integer.MAX_VALUE) {
                // File is too large
            }
            // Create the byte array to hold the data
            dati = new byte[(int)length];
            // Read in the bytes
            int offset = 0;
            int numRead = 0;
            while (offset < dati.length
                    && (numRead=is.read(dati, offset,dati.length-offset))>=0) {
                offset += numRead;
            }

            // Ensure all the bytes have been read in
            if (offset < dati.length) {
                throw new IOException("Could not completely read file
"+file.getName());
            }

            // Close the input stream and return bytes
            is.close();

Is it right?(I think so..)

2-Then my program will serialize and send through TCP socket the bytes
loaded from the .class.The receiver need to create an instance of the
..class received...how do I do this...(note that I know the name of the
class)?

Thanks a lot guys...BYE!--JAVA ROCKS