This document contains 100+ professionally verified and pre-graded Java exam questions with correct answers, designed for the Intro to Java Programming (CS101) course in the 2025/2026 academic year. It is intended for first-year students pursuing degrees in Computer Science, Software Engineering, or Information Technology, as well as for those preparing for Java certifications such as OCAJP or technical job assessments.
The content is built to reflect real exam standards, covering core object-oriented programming principles, looping logic, exception handling, multithreading, and syntax-level details. All answers are clearly marked, and the question formats include definition-based items, output prediction, and conceptual design analysis.
Key topics include:
Object-Oriented Design: abstract superclasses, inheritance, encapsulation, polymorphism, method overriding, and access modifiers (private, protected, public)
Loop Structures and Flow Control: while, do-while, for loops, break, logic control, loop conditions
Constructors and Methods: super(), instance vs static methods, method overloading, and return behavior
Error Types and Exception Handling: use of try, catch, finally, exception safety, infinite recursion, and compile-time issues
Class Design: abstract vs concrete classes, access to private fields, UML implications
Memory and Object References: shallow copy vs deep copy, garbage collection behavior, finalization
Multithreading: Runnable interface, ExecutorService, thread management basics
Java API Usage: valid imports (e.g., .Scanner), understanding package structures
Arrays and Data Types: declaration, initialization, element count, and storage structure
Random Number Generation: generating values using RInt() in specified sequences
Miscellaneous Java Logic: LIFO structures (stack), ternary operators, static variables, input/output with Scanner, program modularity
This document is ideal for:
University students preparing for CS101 or final Java exams
Java beginners practicing core OOP and syntax
Self-learners and coding bootcamp participants reviewing Java fundamentals
Tutors compiling Java exam materials with answer keys
Students studying for Java interviews or industry assessments
Its question diversity and real exam alignment make this a reliable, targeted, and score-focused revision resource.
Keywords:
Java exam questions, Java OOP, Java inheritance, Java abstract class, Java loop logic, Java method design, Java recursion, Java exception handling, Java access modifiers, Java Scanner, Random class Java, Java array creation, CS101 Java, Java multithreading, Java true/false questions
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Java Exam 2025/2026 Exam Questions
and Verified Answers | Already Graded
A+
Which of the following statements about abstract superclasses is true? -
🧠ANSWER ✔✔abstract superclasses may contain data
To exit out of a loop completely, and resume the flow of control at the next
line in the method, use _____ - 🧠ANSWER ✔✔A break statement
Failure to prefix the superclass method name with the keyword super and a
dot (.) separator when referencing this superclass's method causes
_______ - 🧠ANSWER ✔✔infinite recursion
Which of the following is not one of the three general types of computer
languages? - 🧠ANSWER ✔✔Spoken languages
, _______ models software in terms similar to those that people use to
describe real-world objects - 🧠ANSWER ✔✔Object-oriented design
When a subclass constructor calls its superclass constructor, what
happens if the superclass's constructor does not assign a value to an
instance variable? - 🧠ANSWER ✔✔The program compiles and runs
because the instance variables are initialized to their default values
Which of the following is not a Java keyword? - 🧠ANSWER ✔✔next
Arrays are: - 🧠ANSWER ✔✔fixed-length entities
The default implementation of method clone of Object performs a____ -
🧠ANSWER ✔✔shallow copy
Consider the abstract superclass below:
public abstract class Fooo
{
private int a;
public int b;
public Foo(int aVal, intbVal) { a = aVal; b = bVal; }
public abstract int calculate();