[xerophyte12932]

I have almost no idea about the Ethereum system, but don't you have to pay to have your code executed on the global ethereum machine? Does that mean I have to pay to test run my code? or maybe after I deploy it?

[edf13]

You can run your code on a test network:

http://ethdocs.org/en/latest/network/test-networks.html

[julius]

You can run it in a JavascriptVM.

This an online IDE to play around with Ethereums Solidity language: https://remix.ethereum.org

[t3chn0SchO0lbus]

I think there is a way to have users pay for transactions instead of the contracts or contract owners.

[Kiro]

You can use the test net.