1) There is an extra whitespace at line 26.

2) For AddEntryActivity, I had a comment above the private fields saying, "// views to extract information from". Should we have trivial (?) comments like this? Or should we rather not? We should set a standard commenting style for things like these and adhere to it.

3) Extra whitespace at 63; public methods should have JavaDoc comments on 'em.

4) I think some comments for createBudget() method to explain some of the things (like why we multiply the amount by 100) would be nice.

5) MAYBE a final int for 100 to represent CENTS? (probably not since it only shows up once in this case).