A Guide to Mobile and Web Technology(LAMP)

The following code block shows how to convert a byte array in to base64 string

private String encodeBase64( byte[] toEncode, int offset, int length ) {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(length);
        Base64OutputStream base64OutputStream = new Base64OutputStream( byteArrayOutputStream );
            base64OutputStream.write( toEncode, offset, length );
        catch (IOException ioe){
            System.out.println("Error in encodeBase64() : "+ioe.toString());
            return null;
        return byteArrayOutputStream.toString();
}//fn encodeBase64

The following code shows how how to convert base64 encoded string to bytes

byte[] decoded = Base64InputStream.decode(base64str);

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