Programming Basics Quiz
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Questions and Answers

When declaring a variable, the type of information it can store can be changed later in the code.

False (B)

What is the main advantage of using statically-typed languages (like the one used in this text)?

  • Code becomes more concise and efficient.
  • It allows for more flexibility in data types.
  • Code runs faster.
  • Errors can be caught earlier during compilation. (correct)

    • What is the term used to describe the process of combining Strings and numbers (or other data types) to create a longer String?

    Concatenation

    A variable that stores a sequence of characters is called a ______.

    <p>String</p> Signup and view all the answers

    Which of these is NOT a good reason to use variables in code?

    <p>To enforce strict data typing rules and prevent errors. (D)</p> Signup and view all the answers

    Match the following programming concepts with their descriptions:

    <p>Statically-typed = Data types are checked at compile time. Dynamically-typed = Data types are checked at runtime. Concatenation = Combining Strings to form a longer String. CamelCase = A naming convention for variables, where the first word is lowercase and subsequent words start with uppercase letters.</p> Signup and view all the answers

    The text suggests that using variables makes it faster to write code.

    <p>False (B)</p> Signup and view all the answers

    What are the two main advantages of using statically-typed languages, as mentioned in the text?

    <ol> <li>Errors can be caught during compilation rather than runtime. 2. Code is generally faster.</li> </ol> Signup and view all the answers

    What is the first step to installing VS Code?

    <p>Visit <a href="https://code.visualstudio.com/">https://code.visualstudio.com/</a> (B)</p> Signup and view all the answers

    The Error Lens extension is not necessary for Java programming in VS Code.

    <p>True (A)</p> Signup and view all the answers

    What should you do if things aren’t working right in VS Code after opening a folder?

    <p>Ensure you have opened the correct folder.</p> Signup and view all the answers

    To install VS Code extensions, you need to click on the ______ icon.

    <p>Extensions</p> Signup and view all the answers

    What is the role of the Class Loader in the JVM?

    <p>It loads bytecode into the Method Section of memory. (C)</p> Signup and view all the answers

    The JVM always starts running the code from the beginning of the class file.

    <p>False (B)</p> Signup and view all the answers

    What are the two primary memory areas used by the JVM?

    <p>Stack and Heap</p> Signup and view all the answers

    The JVM loads the bytecode into the ________ section of memory.

    <p>Method</p> Signup and view all the answers

    Match the following JVM components with their descriptions:

    <p>Heap = Memory for dynamic allocation Stack = Memory for method calls and local variables Method Section = Holds bytecode ready for execution Class Loader = Loads classes into memory</p> Signup and view all the answers

    What is the first step the JVM takes when a class is accessed for the first time?

    <p>Loads the bytecode into the Method Section. (A)</p> Signup and view all the answers

    The JVM can run Java programs without following specific rules.

    <p>False (B)</p> Signup and view all the answers

    In the JVM memory architecture, which method is always executed first?

    <p>main</p> Signup and view all the answers

    What is one of the goals for the OOP-2 course?

    <p>To understand the course structure and requirements (A)</p> Signup and view all the answers

    The midterm exam is scheduled during Week 6 of the OOP-2 course.

    <p>False (B)</p> Signup and view all the answers

    Which programming language is primarily focused on in this course?

    <p>Java</p> Signup and view all the answers

    Object-oriented programming emphasizes the concept of __________ and abstraction.

    <p>encapsulation</p> Signup and view all the answers

    Match the following weeks with their corresponding topics:

    <p>Week 1 = Introductions Week 3 = Object-Oriented Programming Week 6 = Arrays Week 9 = Intro to Polymorphism</p> Signup and view all the answers

    Which method is typically used to obtain input in Java?

    <p>Scanner (B)</p> Signup and view all the answers

    Inheritance allows a new class to inherit properties and methods from an existing class.

    <p>True (A)</p> Signup and view all the answers

    What is the primary tool mentioned for setting up software needed for the course?

    <p>VSCode</p> Signup and view all the answers

    Which of the following is a fully interpreted programming language?

    <p>JavaScript (C)</p> Signup and view all the answers

    Fully compiled languages are typically slower than fully interpreted languages.

    <p>False (B)</p> Signup and view all the answers

    What is the primary disadvantage of using interpreted languages compared to compiled languages?

    <p>Slower execution speed</p> Signup and view all the answers

    A language that combines elements of both compiled and interpreted languages is known as a ______ language.

    <p>hybrid</p> Signup and view all the answers

    Match the programming languages to their type:

    <p>JavaScript = Fully Interpreted C++ = Fully Compiled Java = Hybrid Python = Fully Interpreted</p> Signup and view all the answers

    What is the primary role of an interpreter?

    <p>To convert source code into machine code during execution (D)</p> Signup and view all the answers

    You should always copy and paste code from one exercise to another to save time.

    <p>False (B)</p> Signup and view all the answers

    Name one disadvantage of fully interpreted languages.

    <p>Slower performance compared to compiled languages</p> Signup and view all the answers

    What is the typical lifespan of a computer program?

    <p>6-8 years (C)</p> Signup and view all the answers

    You must declare a variable before you can use it in your code.

    <p>True (A)</p> Signup and view all the answers

    What does the term 'concatenation' refer to in programming?

    <p>Combining strings together</p> Signup and view all the answers

    The integer variable called area contains the integer value of _____

    <p>600</p> Signup and view all the answers

    Match the following types of variables with their description:

    <p>int = A variable that stores integer values String = A variable that stores a sequence of characters double = A variable that stores floating-point numbers boolean = A variable that stores true or false values</p> Signup and view all the answers

    What is a common mistake beginners make when coding with variables?

    <p>All of the above (D)</p> Signup and view all the answers

    Today, readable code is considered less important than efficient code.

    <p>False (B)</p> Signup and view all the answers

    What does the code Prints Hello19 illustrate?

    <p>String concatenation</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course title: Object-Oriented Programming in Java 2
    • Instructor: Prof. Muath Alzghool
    • Email: [email protected]
    • Office hours: by appointment
    • Background: PhD in Computer Science from the University of Ottawa, specializing in Artificial Intelligence, Information Retrieval, and Natural Language Processing (NLP)

    Course Goals

    • Get to know each other
    • Understand course structure and requirements
    • Understand expectations of students and instructor
    • Start setting up software (VS Code) on laptops
    • Introduction into the course topic

    Course Outline

    • Week 1: Introductions, setting up VS Code, high-level programming languages, memory architecture of the JVM, variables
    • Week 2: The Java Virtual Machine (JVM) under the covers, if statements, loops, the debugger
    • Week 3: Object-Oriented Programming (OOP), using objects, building objects, methods, reference vs. primitive variables
    • Week 4: Static variables and methods, getting input, getters/setters, throwing exceptions, constructors, encapsulation/abstraction
    • Week 5: Try/catch, method overloading, pass by value, final, enumerated types, deeper into enums, holding a reference to other objects
    • Week 6: Arrays, arrays of objects, building a stack, review
    • Week 7: Midterm Exam
    • Week 8: Inheritance, overriding methods, visibility modifiers, inheritance chains, toString method, abstract classes and methods, interfaces
    • Week 9: Garbage collection, intro to polymorphism, casting, equals and hashCode
    • Week 10: Dependency, coupling and cohesiveness, building our own ArrayList, generics, hashmaps
    • Week 11: Event-driven programming, inner classes, anonymous classes, lambdas, functional interfaces
    • Week 12: Functional Programming, collections, streams
    • Week 13: Linked lists, review
    • Week 14: Final Exam

    Course Evaluation

    • Quizzes/Assignments: 30%
    • Midterm Exam: 35%
    • Final Exam: 35%
    • Passing average: 50% across both exams

    How to Succeed in the Course

    • Programming requires active engagement. Don't just read; practice!
    • Dedicate at least 6 hours per week outside class to study, complete assignments, and work through exercises.
    • Come to class prepared with laptop and necessary software installed.
    • Active engagement in lecture is key. Take notes, participate in discussions.
    • Don't copy code from one exercise to another. Always write the code yourself!
    • Utilize online resources (YouTube/Google) for further clarification or customization.

    Course Expectations

    • While in class, do not play games, use social media, or work on unrelated tasks.
    • During lecture, listen actively and focus on notes and concepts.

    Instructor Expectations

    • The instructor is committed to supporting students' learning.
    • They're available to answer questions and provide assistance with exercises and assignments.
    • Seek clarification on course concepts, issues with exercises, and any other concerns.

    Introduction and Setup for Week 1

    • Install Java development kit (JDK)
    • Install VS Code
    • Install the Extension pack for Java
    • Download course materials from Slate
    • Unzip course materials into a designated folder
    • Open VS Code and select "Open Folder" to access the unzipped materials.

    Additional Notes

    • The instructor recommends using VS Code as the primary Integrated Development Environment (IDE)

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    Description

    Test your knowledge on programming concepts such as variable types, advantages of statically-typed languages, and VS Code installation. This quiz covers key definitions and best practices in programming, making it ideal for beginners. Answer questions about data types, string manipulation, and IDE usage.

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