Barron’s AP Computer Science A with Online Tests is aligned with the current exam curriculum and provides key practice and subject review. This edition reflects the removal of the ClassCastException and downcasting from the AP Java subset, and practice tests include the free-response style used on recent exams.This edition includes: Two-full length practice tests in the book Three additional full-length practice tests online A diagnostic test to pinpoint strengths and weaknesses so students can focus on areas where they need more study Answers and explanations for every test question Charts detailing the scoring suggestions for each free-response question The content review includes static variables, the List interface, enhanced for loops, the import statement, many questions on 2-dimensional arrays, and a detailed analysis of the binary search algorithm.