What does this do?

Good afternoon all!

I found some sample encryption code and I am wondering what the statement below does. Currently the code encrypts or decrypts file and I am going to be using it as a "roadmap" to create a program to encrypt and decrypt byte[].

byte[] buf = cipherMode == Cipher.ENCRYPT_MODE?newbyte[100] :newbyte[128];

Thanks,

Doug

Here is a bigger code piece if needed:

Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");

String textLine =null;

//RSA encryption data size limitations are slightly less than the key modulus size,

//depending on the actual padding scheme used (e.g. with 1024 bit (128 byte) RSA key,

//the size limit is 117 bytes for PKCS#1 v 1.5 padding. (http://www.jensign.com/JavaScience/dotnet/RSAEncrypt/)

byte[] buf = cipherMode == Cipher.ENCRYPT_MODE?newbyte[100] :newbyte[128];

int bufl;

// init the Cipher object for Encryption...

[1506 byte] By [DougJrSa] at [2007-11-27 1:23:47]