AP Computer Science A Practice Test

40 questions60 minutesDetailed explanationsInstant scoring

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About the Real AP Computer Science A Exam

The AP Computer Science A exam is a college-level test administered by the College Board. Scoring a 3 or higher (on a 1-5 scale) can earn you college credit at thousands of universities, saving you time and tuition money. Over 3 million students take AP exams each year.

Our AP Computer Science A Practice Test

Our AP Computer Science A practice test contains 40 original multiple-choice questions matching the current AP Computer Science A exam format. Questions are aligned to the College Board's course description and reflect the same topic weighting, difficulty distribution, and question styles found on the real exam.

What to Expect

You will answer 40 multiple-choice questions in approximately 60 minutes.
Questions cover all major units and topics in the AP Computer Science A curriculum.
Difficulty ranges from straightforward recall to complex analysis and application.
After completion, you receive an estimated AP score on the 1-5 scale.
Every question includes a detailed explanation with subject-specific reasoning.
Your weak-area report shows which units and topics need the most review.

Try a Sample Question

AP Computer Science A — Sample

Consider the following Java code segment: ```java int x = 2000000000; // 2 billion int y = 500000000; // 500 million int z = x + y; System.out.println(z); ``` What output is produced by this code segment?

A 2500000000

B -1794967296

C 2147483647

D -2147483648

Explanation. The correct output is B, -1794967296. The sum of `x` and `y` is `2,000,000,000 + 500,000,000 = 2,500,000,000`. However, the maximum value an `int` can hold in Java is `2,147,483,647`. Since the sum exceeds this maximum, an integer overflow occurs. In Java, when an `int` overflows, it wraps around to the minimum negative value and continues counting upwards from there. To find the exact value, subt

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