Java Programming

Hi guy,

I need to store an image as a String, this would not be as hard if the String didnt need to be in "hex" format, i can convert the image to byte array. and i have this code to convert it to a String, but i am not sure how to convert it back to a byte array.. the same byte array.

 /**
     *Takes in a byte array and converts in to a stirng array of hex
     */
    private static String toHexString( byte[] b )
    {
        
        // table to convert a nibble to a hex char.
        char[] hexChar = {
            '0' , '1' , '2' , '3' ,
            '4' , '5' , '6' , '7' ,
            '8' , '9' , 'a' , 'b' ,
            'c' , 'd' , 'e' , 'f'};
        
        StringBuffer sb = new StringBuffer( b.length * 2 );
        for ( int i=0; i<b.length; i++ )
        {
            // look up high nibble char
            sb.append( hexChar [( b[i] & 0xf0 ) >>> 4] );
            
            // look up low nibble char
            sb.append( hexChar [b[i] & 0x0f] );
        }
        
        return sb.toString();
        
    }

Thanks please can you explain how to reconvert it back to the byte array, or if that is not going to work some help with writting a way that this can be done.

Many thanks
David