Both are programs of Google, we can say they are affiliate programs of Google, people are earning good money from it, but not all people, some people are tying to earn from them from years and they didn't earn even a single penny from it so you have to understand it, you need to be much practical if you really want to earn from them.

I have been trying to earn from Adsense for 1 year but I didn't earn even $100 I really need to learn it well,

Most of the webmasters are using Adsense for earning money and it is good thing and good program for earning money online.