Android 2.3 simple app (eclipse)

I need a simple text app for android 2.3. I'll need the complete sources to be able to compile it with eclipse. The app will have two main features: 1) Add entrie 2) Learn 1) Two text input fields and a submit button, the first text is a question the user wants to memorize the answer for, and the second is the anwser. 2) a- A screen will show a question (picked up in the list randomly) and a text input field to write the answer, and of course a button to validate. b- The answer shows on the next screen with "good" or "bad" and a button to go to the next question. The main thing is how the question/answer list is handled. When a question has been well answered it won't be shown before 1 day, if it is well answered again it won't be shown before 2 days, then 4 days, 8 days... The app doesn't have to be very nice, I am programming myself and will be able to upgrade it, I just don't have time to search for functions I don't know.