If you don't care that the whole world can see your program, you can use a pastebin. There are many to choose from, an easy one is
http://pastebin.com/. You can even create your own personal pastebin url, just go to
http://connahhh.pastebin.com.
Point your browser to the pastebin, paste your program into the text window, enter your name and click Send. Now note the URL in your browser address bar, which points to your newly pasted code, and send that URL to your friend - I just pasted you a snippet at
http://pastebin.com/mcd1093b. (It will disappear in a month - you can also set the lifespan on this web site to 1 day or forever).
-- Paul