AP Computer Science A Premium, 12th Edition: Prep Book with 6 Practice Tests + Comprehensive Review + Online Practice (Barron's AP Prep) 2024 with complete solution

AP Computer Science A Premium, 12th Edition: Prep Book with 6 Practice Tests + Comprehensive Review + Online Practice (Barron's AP Prep) 2024 with complete solution Barron’s AP Computer Science A Premium, 12th Edition includes in‑depth content review and practice. It’s the only book you’ll need to be prepared for exam day. Written by Experienced Educators Learn from Barron’s‑‑all content is written and reviewed by AP experts Build your understanding with comprehensive review tailored to the most recent exam Get a leg up with tips, strategies, and study advice for exam day‑‑it’s like having a trusted tutor by your side Be Confident on Exam Day Sharpen your test‑taking skills with 6 full‑length practice tests–3 in the book, including a diagnostic test to target your studying, and 3 more online–plus detailed answer explanations for all questions Strengthen your knowledge with in‑depth review covering all units on the AP Computer Science A exam Reinforce your learning with dozens of clear examples and a series of multiple‑choice practice questions at the end of each review chapter Learn the key techniques and methods of modern programming with a chapter devoted to the Java language features you need to know for test day Robust Online Practice Continue your practice with 3 full‑length practice tests on Barron’s Online Learning Hub Simulate the exam experience with a timed test option Deepen your understanding with detailed answer explanations and expert advice Gain confidence with scoring to check your learning progress Table of Contents How to Use This Book Barron’s Essential 5 Introduction Diagnostic Test Section I Section II Answer Key (Section I) Diagnostic Chart Answer Explanations 1 Tips for Taking the Exam Tips for the Multiple-Choice Section What Is Tested? Time Management Guessing The Java Quick Reference An Active Pencil Troubleshooting—What’s Wrong with This Code? Loop Tracing Java Exceptions Matrix Manipulation Comparing Algorithms Mechanics of Answering Multiple-Choice Questions Tips for the Free-Response Section What Is the Format? What Is Tested? What Types of Questions Might Be Asked? Skill Focus in Free-Response Questions The Java Quick Reference Time Management Grading the Free-Response Questions Writing Code Maximizing Your Score 2 Introductory Java Language Features Packages and Classes Javadoc Comments Types and Identifiers Identifiers Built-in Types Storage of Numbers Hexadecimal and Octal Numbers Final Variables Operators Arithmetic Operators Relational Operators Logical Operators Assignment Operators Increment and Decrement Operators Operator Precedence Input/Output Input Output Escape Sequences Control Structures Decision-Making Control Structures Iteration Errors and Exceptions Multiple-Choice Questions on Introductory Java Language Features Answer Explanations 3 Classes and Objects Objects Classes Public, Private, and Static Methods Headers Types of Methods Method Overloading Scope The this Keyword References Reference vs. Primitive Data Types The Null Reference Method Parameters Multiple-Choice Questions on Classes and Objects Answer Explanations 4 Inheritance and Polymorphism Inheritance Superclass and Subclass Inheritance Hierarchy Implementing Subclasses Declaring Subclass Objects Polymorphism Dynamic Binding (Late Binding) Using super in a Subclass Type Compatibility Downcasting Abstract Classes Interfaces Multiple-Choice Questions on Inheritance and Polymorphism Answer Explanations 5 Some Standard Classes The Object Class The Universal Superclass Methods in Object The String Class String Objects Constructing String Objects The Concatenation Operator Comparison of String Objects Other String Methods Special Emphasis Wrapper Classes The Integer Class The Double Class Autoboxing and Unboxing The Math Class Random Numbers Multiple-Choice Questions on Some Standard Classes Answer Explanations 6 Program Design and Analysis Software Development Program Specification Program Design Program Implementation Testing and Debugging Program Maintenance Object-Oriented Program Design Identifying Classes Identifying Behaviors Determining Relationships Between Classes UML Diagrams Implementing Classes Implementing Methods Vocabulary Summary Program Analysis Program Correctness Assertions Efficiency Multiple-Choice Questions on Program Design and Analysis Answer Explanations 7 Arrays and Array Lists One-Dimensional Arrays Initialization Length of Array Traversing a One-Dimensional Array Arrays as Parameters Array Variables in a Class Array of Class Objects Analyzing Array Algorithms Array Lists The ArrayList Class The Methods of ArrayList<E> Autoboxing and Unboxing Using ArrayList<E> Two-Dimensional Arrays Declarations Matrix as Array of Row Arrays Processing a Two-Dimensional Array Two-Dimensional Array as Parameter Multiple-Choice Questions on Arrays and Array Lists Answer Explanations 8 Recursion Recursive Methods General Form of Simple Recursive Methods Writing Recursive Methods Analysis of Recursive Methods Sorting Algorithms That Use Recursion Recursive Helper Methods Recursion in Two-Dimensional Grids Sample Free-Response Question 1 Sample Free-Response Question 2 Multiple-Choice Questions on Recursion Answer Explanations 9 Sorting and Searching Sorts: Selection and Insertion Sorts Selection Sort Insertion Sort Recursive Sorts: Merge Sort and Quicksort Merge Sort Quicksort Sorting Algorithms in Java Sequential Search Binary Search Analysis of Binary Search Multiple-Choice Questions on Sorting and Searching Answer Explanations PRACTICE TESTS Practice Test 1 Section I Section II Answer Explanations Practice Test 2 Section I Section II Answer Explanations Appendix: Glossary of Useful Computer Terms