Hi,

I'm trying to get a text file to be converted to hexidecimal . .At present
it works .. but i do not get the entire file converted .. i can't see my
error- here is the code -

_________________________________________________________________
(from main)

public static void main(String args[])
       {

       String file = args[0];
       byte[] test = new byte[(int)file.length()];
       String str = "";
       try
       {

       test = getBytesFromFile(file);

       }
       catch (IOException e)
       {
        System.out.println("Unable to Find: " + e);
       }
       str = hexString(test);
       System.out.println(str);
       }

public static byte[] getBytesFromFile(String file) throws IOException {
       InputStream is = new FileInputStream(file);

       // Get the size of the file
       long length = file.length();

       // 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
       byte[] bytes = new byte[(int)length];

       // Read in the bytes
       int offset = 0;
       int numRead = 0;
       while (offset < bytes.length
              && (numRead=is.read(bytes, offset, bytes.length-offset)) >=
0) {
           offset += numRead;
       }

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

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

   }

     public static void usage ()
   {
       System.err.println("Usage: java DEScipher filename");
   }

   /**
    * Convert a byte to a string of hexadecimal digits.
    */

   /** The hexadecimal digits "0" through "f". */
   public static char[] NIBBLE = {
                                     '0', '1', '2', '3', '4', '5', '6',
'7',
                                     '8', '9', 'a', 'b', 'c', 'd', 'e',
'f',
                                 };

   /**
    * Convert a byte array to a string of hexadecimal digits.
    */
   public static final String hexString(byte[] buf)
   {
       return hexString(buf, 0, buf.length);
   }

   /**
    * Convert a byte array to a string of hexadecimal digits.
    * The bytes <code>buf[i..i+length-1]</code> are used.
    */
   public static final String hexString(byte[] buf, int i, int length)
   {
       StringBuffer sb = new StringBuffer(length*2);
       for (int j=i; j<i+length; j++) {
           sb.append(NIBBLE[(buf[j]>>>4)&15]);
           sb.append(NIBBLE[ buf[j]     &15]);
       }
       return sb.toString();
   }

   public static final String hexString(byte a)
   {
       StringBuffer sb = new StringBuffer(2);
       sb.append(NIBBLE[(a>>>4)&0xf]);
       sb.append(NIBBLE[a&0xf]);
       return sb.toString();
   }

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Output -

moses.cs.curtin.edu.au-70% java DEScipher message.text
54657374696e672072656164

moses.cs.curtin.edu.au-73% more message.text
Testing reading in from a file to hexidecimal

does not read all of the file ..

Any help would be appreciated . .

Matt