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Java Programming Chapter 6 – 100+ Solved Q&A on Classes, Methods, UML – CS101

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This document contains over 100 fully solved multiple-choice and true/false questions from Chapter 6 of the Intro to Java Programming (CS101) course for the 2025/2026 academic year. It is tailored for first-year students in Computer Science, Software Engineering, and IT programs and is also a strong resource for learners preparing for Java foundations exams or technical interviews focused on object-oriented programming and method design. The content covers essential Java OOP principles and method-level logic, structured in a clear Q&A format with all answers provided and verified. It includes both theoretical questions and code-based logic exercises. Key topics covered: Classes and Objects: understanding class templates, instances, attributes, and behaviors UML Diagrams: interpreting and translating UML into Java code Constructors and Fields: constructor syntax, instance fields, default and no-arg constructors Method Design: access specifiers (public, private), overloading, return types, parameters Scope and Encapsulation: variable visibility, this keyword, shadowing, data hiding Reference Variables and Memory: storage models, how objects are accessed and passed String and Random Classes: correct instantiation and use Package Usage: import statements, , , explicit vs wildcard imports OOP Concepts: encapsulation, data abstraction, responsibilities of classes Common Pitfalls: compilation errors, uninitialized objects, incorrect constructors, misuse of access levels The document ends with a rich True/False section addressing practical Java behaviors, making it excellent for quick review and error-spotting practice. This resource is ideal for: University CS101 students reviewing for exams or quizzes Java learners aiming to master class/method design Coding bootcamp participants studying Java OOP principles Certification candidates preparing for OCAJP or similar foundational tests Tutors assembling Java-focused assessments Keywords: Java Chapter 6, Java classes, Java methods, Java UML, Java constructors, Java overloading, Java object-oriented programming, Java field scope, Java access specifiers, Java Random class, Java import packages, CS101 Java, Java true/false quiz, Java exam questions

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Java Chapter 6 2025/2026 Exam
Questions and Answers | 100% Solved



1) One or more objects may be created from a(n):

A) field

B) class

C) method


D) instance - 🧠ANSWER ✔✔Answer: B


2) Class objects normally have ________ that perform useful operations on

their data, but primitive

variables do not.

A) fields

B) instances

,C) methods


D) relationships - 🧠ANSWER ✔✔Answer: C


3) In the cookie cutter metaphor, think of the ________ as a cookie cutter

and ________ as the cookies.

A) object; classes

B) class; objects

C) class; fields


D) attribute; methods - 🧠ANSWER ✔✔Answer: B


4) Which of the following are classes from the Java API?

A) Scanner

B) Random

C) PrintWriter


D) All of the above - 🧠ANSWER ✔✔Answer: D


5) When you are working with a ________, you are using a storage

location that holds a piece of data.

A) primitive variable

, B) reference variable

C) numeric literal


D) binary number - 🧠ANSWER ✔✔Answer: A


6) What is stored by a reference variable?

A) A binary encoded decimal

B) A memory address

C) An object


D) A string - 🧠ANSWER ✔✔Answer: B


7) Most programming languages that are in use today are:

A) procedural

B) logic

C) object-oriented


D) functional - 🧠ANSWER ✔✔Answer: C


8) Java allows you to create objects of this class in the same way you

would create primitive variables.

A) Random


3
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STATEMENT. ALL RIGHTS RESERVED

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