UML Class Diagram Quiz
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Questions and Answers

What defines an object in Java?

  • The number of methods it has
  • The data fields it contains
  • The class name it belongs to
  • Its state and behavior (correct)
  • What does a Java class use variables for?

  • To define methods
  • To define object state
  • To define data fields (correct)
  • To define object behavior
  • What is the purpose of a Java class?

  • To handle user inputs
  • To execute specific tasks
  • To store data fields only
  • To define objects of the same type (correct)
  • What is an object's state in Java?

    <p>The defining characteristics of the object</p> Signup and view all the answers

    What does an object's behavior define in Java?

    <p>What the object does</p> Signup and view all the answers

    What are the data fields for the Circle class?

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

    What defines an object in Java?

    <p>Its state and behavior</p> Signup and view all the answers

    What does an object's behavior define in Java?

    <p>What the object does</p> Signup and view all the answers

    What is the purpose of a Java class?

    <p>Defines objects of the same type</p> Signup and view all the answers

    What does a Java class use variables to define?

    <p>Data fields</p> Signup and view all the answers

    Study Notes

    Object-Oriented Programming Concepts

    • Object-oriented programming (OOP) involves programming using objects that represent entities in the real world.
    • An object has a unique identity, state, and behaviors.
    • State of an object consists of a set of data fields (properties) with their current values.
    • Behavior of an object is defined by a set of methods.

    Object Characteristics

    • Objects can be distinctly identified, such as a student, a desk, a circle, a button, or even a loan.
    • Objects have a unique identity, state, and behaviors.

    Object Identity

    • Objects can be identified in the real world and in programming.
    • Examples of objects include students, desks, circles, buttons, and loans.

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    Description

    Test your knowledge of building UML class diagrams in object-oriented programming. This quiz covers concepts such as OOP, object representation, and real-world entity identification.

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