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Java Programming – 100+ Vocabulary Q&A on OOP, Methods, Loops, Arrays, Wrappers – CS101

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This document offers a comprehensive Java vocabulary reference with over 100 fully solved Q&A entries, crafted for Intro to Java Programming (CS101) students in the 2025/2026 academic year. Organized in a clear question-and-answer format, each entry provides a verified definition of core programming terms used in Java. The vocabulary spans from beginner to intermediate topics, including object-oriented principles, control structures, method syntax, array usage, and Java’s unique memory and reference model. This glossary is particularly effective for first-year students in Computer Science, Software Engineering, or Information Technology, as well as learners preparing for Java-based assessments or technical interviews. Each term is explained in simple yet precise language, helping students develop long-term conceptual clarity and boost exam performance. Topics covered include: Object-Oriented Programming (OOP): inheritance, polymorphism, class, object, interface, inner class, constructors Methods & Parameters: accessor, mutator, getter, setter, overloading, overriding, return types, explicit/implicit parameters Java Control Flow: for, while, do-while, for-each, nested loops, infinite loops, conditions Java Types & Memory: primitive types, wrapper classes, object references, scope, instance vs class variables Syntax & Program Structure: identifiers, access specifiers (private, public), encapsulation, method headers Array & Collection Logic: arrays, elements, ArrayList, aggregation, composition, has-a/is-a relationships Language Features & Compiler Concepts: compilation, constructors, auto-boxing, simple vs compound statements Best Practices: preconditions, postconditions, side effects, scope management, modularity Software Design Terms: dependency, collaborators, hierarchies, inner classes This document is ideal for: CS101 and AP Computer Science A students learning foundational Java Learners needing a rapid-reference vocabulary sheet before exams Tutors building classroom glossaries, warm-up drills, or terminology reviews Bootcamp participants reviewing essential programming terminology Java certification candidates (e.g., OCAJP) focusing on theory-heavy content Every definition is presented in a flashcard-ready format, making this a highly effective tool for both solo study and group revision sessions. Keywords: Java vocabulary, Java definitions, Java inheritance, Java constructor, Java getter setter, Java object reference, Java access specifier, Java method parameters, Java return type, Java polymorphism, Java arrays, Java wrapper classes, Java encapsulation, Java preconditions, CS101 Java glossary

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Uploaded on
September 29, 2025
Number of pages
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Written in
2025/2026
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Java Vocabulary 2025/2026 Exam
Questions and Answers | 100% Solved



inheritance - 🧠ANSWER ✔✔relationship between a subclass and its

superclass, the subclass is more specialized than the superclass


constructor - 🧠ANSWER ✔✔a method that initializes a newly instantiated

object


getter - 🧠ANSWER ✔✔a method that gets parameters


setter - 🧠ANSWER ✔✔a method that sets parameters


object - 🧠ANSWER ✔✔a value of a class type (Rectangle box = new

ractangle --> rectangle is the Object)

, reference - 🧠ANSWER ✔✔a value that denotes the location of an object in

memory (Rectangle box = new Rectangle --> box is the reference to the

object)


nested loops - 🧠ANSWER ✔✔a loop that is contained within another loop


typecasting - 🧠ANSWER ✔✔refers to changing an entity of one datatype

into another


condition - 🧠ANSWER ✔✔a circumstance that must be met


overloading - 🧠ANSWER ✔✔a method with the same name, but different

arguments


overriding - 🧠ANSWER ✔✔redefining a method in a subclass


compiler - 🧠ANSWER ✔✔a program that translates code into machine

language


base class - 🧠ANSWER ✔✔a general class, from which a more specialized

class inherits


derived class - 🧠ANSWER ✔✔a class that inherits variables and methods

from a superclass but adds instance variables, adds methods, or redefines

methods

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