i have a java class wchich need to be converted to its c# equivalent. I have nearly zero knowledge in java.....so any help would be appreciated

public class ChecksumMD5 {


    public static String getValue(String s)
        throws Exception
    {
        String result = "";
        byte b[] = (byte[])null;
        InputStream fis = new ByteArrayInputStream(s.getBytes());
        byte buffer[] = new byte[1024];
        MessageDigest complete = MessageDigest.getInstance("MD5");
        int numRead;
        do
        {
            numRead = fis.read(buffer);
            if(numRead > 0)
                complete.update(buffer, 0, numRead);
        } while(numRead != -1);
        fis.close();
        b = complete.digest();
        for(int i = 0; i < b.length; i++)
            result = (new StringBuilder(String.valueOf(result))).append(Integer.toString((b[i] & 0xff) + 256, 16).substring(1)).toString();

       System.out.println("result111 is--->"+result);
        return result;
    }
}