AP Computer Science A

Java, classes, inheritance, and 4 code-writing FRQs.

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8practice MCQs

1FRQ prompts

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What's in CSA

Every unit is mapped to the official Course and Exam Description.

U1Primitive Types

U2Using Objects

U3Boolean Expressions

U4Iteration

U5Writing Classes

U6Array & ArrayList

U72D Array

U8Inheritance

U9Recursion

Try a few sample questions

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8 matches

Q1OOPeasy

In Java, which keyword is used to create a subclass that inherits from a superclass?

Q2Data Structuresmedium

What is the output of the following Java code? int[] arr = {3, 1, 4, 1, 5}; System.out.println(arr[2] + arr[4]);

Q3Algorithmsmedium

What is the time complexity of binary search on a sorted array of n elements?

Q4Recursionhard

What does the following recursive method return when called with n=4? public static int mystery(int n) { if (n == 0) return 1; return n * mystery(n-1); }

Sample FRQ · AI graded

FRQ prompt

Free Response Question:
Write a Java class called NumberAnalyzer with the following:

(a) A constructor that takes an int[] array and stores it as an instance variable.
(b) A method called getMax() that returns the maximum value in the array.
(c) A method called countAboveAverage() that returns the count of elements strictly greater than the mean of all elements.

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