No, “Why I do programming” is active voice. An example of passive voice would be “Why programming is done by me.” And of course no one would write that. You m

No, “Why I do programming” is active voice. An example of passive voice would be “Why programming is done by me.” And of course no one would write that. You may prefer “Why I program”, which is indeed more concise and straightforward. But that's a stylistic preference, not a difference between active and passive voice. For a similar example, consider “Why I do science”. Here there isn't a convenient way to shorten it, but it's still active voice. In general, for any X, “Why I do X” is active voice, and “Why X is done by me” is passive voice.