In this section, we have collected a few old exams with solutions, to help you better prepare for coming exams. A few things to note:

Old exams for part A (i.e. study period 2) of the course are prefixed with an A. Old part B exams are prefixed with a B.
This year's exams may not necessarily be similar to past exams. Aim for concept learning, not exam cramming!
It is generally a good idea to attempt to solve an exam before looking at the answers.
The last exercise session before each exam will be dedicated to (a teacher) solving old exams on the board.
Some old exam answers were wrong! Corrected versions have now been uploaded here. If you have the old versions, here are the errors:
- 2019-04 part A, question 4:
  - The arguments a and b are flipped in the answer: isSubArray tells you whether b is a subarray of a, not the other way around.
  - It is provably impossible to create a fast solution (i.e. for full marks) to this question.
  - The model answer gives the wrong result for isSubArray(new int[] {1,2,1,2,3}, new int[]{1,2,3}).
- 2019-06 part B, question 2a:
  - The Borrower interface is incorrect, as Java interfaces may not have instance variables. firstName, surname, etc. should be methods, not instance variables.
- 2019-06 part B, question 2b:
  - the instance variables renewalPeriod, feePerDay and maxRenewals should be protected and not static.
  - the ShortTermBook constructor must overwrite renewalPeriod, feePerDay and maxRenewals with the values appropriate for short term loans.
- If you're having trouble with an exam question and suspect that its model answer is wrong, please talk to an assistant or contact me as soon as possible!

Good luck!