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AP Computer Science Principles Study Guide

AP Computer Science A Unit 3 Progress Check: MCQ with Complete Solutions What is a `Boolean expression`? A Boolean expression is an expression that evaluates to either `true` or `false`. Explain the purpose of an `if statement` in programming. An if statement allows a program to execute a block of code only if a specified condition is true. What does the `==` operator check for in Java? The `==` operator checks if two values are equal. How does an `else` statement work ...

AP computer science exam 1 with complete solutions

AP Computer Science A Exam Questions and Answers

AP Computer Science: Unit 4 Questions with Verified Solutions How can you implement a "recursive function" to solve a problem? You implement a recursive function by having it call itself with modified arguments, typically including a base case to terminate the recursion. What is the role of the `__init__` method in a class? The `__init__` method initializes an object’s attributes when the object is created, acting as a constructor in a class. How does "inheritance" work in ...

AP Computer Science Principles Latest Update Graded A+ What is the primary function of an algorithm in computer science? The primary function of an algorithm is to provide a step-by-step procedure or set of instructions to solve a specific problem or perform a task. How does abstraction help in managing the complexity of a computer program? Abstraction simplifies a computer program by hiding complex details and allowing programmers to focus on higher-level concepts. What is the d...

AP Computer Science A Unit 2 Progress Check: MCQ Part A 100% Pass What will be the output of the following code? ```java int x = 5; int y = 10; Sln(x + y); ``` A) 15 B) 510 C) 5 D) 10 Answer: A) 15 Given the following code snippet, what is the value of `result` after execution? 2 ```java int a = 8; int b = 3; int result = a % b; ``` A) 2 B) 1 C) 3 D) 5 Answer: A) 2 Which of the following statements correctly initializes an `ArrayList` of `String` ...

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AP Computer Science Principles College Board Questions with Verified Solutions What is a flowchart, and how is it used in designing algorithms? A flowchart is a graphical representation of an algorithm’s steps and decision points, used to visually map out the process flow and logic. How does a stack data structure operate, and what are its primary use cases? A stack operates on a Last In, First Out (LIFO) principle, where the last element added is the first one to be removed. It is ...

AP Computer Science Principles Exam Review 2024 (100% Verified) Explain the concept of `API` and how it facilitates software development. An API (Application Programming Interface) provides a set of rules and protocols for building and interacting with software applications. It facilitates software development by allowing different software systems to communicate and use each other's functionalities without needing to understand their internal workings. What is `data privacy`, a...