<p>has anyone ever heard of someone applying as an A.B. candidate and then switching to BSE once they got there? do they allow that?</p>
<p>Yes, they allow it, because at Princeton you apply to the University as a whole, and then once you get in (or if you get in I should say) you can decide what to major in. That is one aspect of Princeton I really love...I don't have to decide what I want to major in when I apply. The application asks you whether you are interested in A.B. or B.S.E. to get a sense of what your interests are.</p>