Chapter 13: Problem 72

T \(F \quad\) A class's responsibilities are the things the class is responsible for knowing, and actions the class must perform.

Short Answer

Expert verified

A class's responsibilities refer to both attributes and methods. The attributes represent the state of the object, while the methods represent the behavior or functionality of the object. Therefore, a class's responsibilities include what it is in charge of knowing (attributes) and the actions it must perform (methods). This is essential for defining, manipulating, and interacting with objects in a consistent way. So, the statement "A class's responsibilities are the things the class is responsible for knowing, and actions the class must perform" is True.

Step by step solution

Understand the concept of a class

A class is a blueprint for creating objects in object-oriented programming. It contains attributes and methods that define the object's properties and behavior.

Define class responsibilities

Class responsibilities refer to what a class is in charge of knowing or managing (its attributes) and the actions it must perform (its methods).

Explain class attributes

Attributes are pieces of information that a class is in charge of knowing. They represent the state of the object created using the class. For example, in a "Student" class, attributes might include the student's name, ID number, and course enrollments.

Explain class methods

Methods are actions or functions that a class can perform. They represent the behavior or functionality of the object created using the class. For example, in a "Student" class, methods might include enrolling in a course, dropping a course, or calculating the student's GPA.

Discuss how responsibilities come together in a class

A class is composed of both attributes and methods, making it responsible for managing the state and behavior of the objects created from it. These responsibilities are essential because they allow programmers to define, manipulate, and interact with objects in a structured and consistent way.

Evaluate the given statement

The statement "\(T F \quad\) A class's responsibilities are the things the class is responsible for knowing, and actions the class must perform" is True. As the class's responsibilities include knowing its attributes and performing methods, which dictate the behavior of the objects created using the class.

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T \(F \quad\) A class's responsibilities are the things the class is responsible for knowing, and actions the class must perform.

Short Answer

Step by step solution

Understand the concept of a class

Define class responsibilities

Explain class attributes

Explain class methods

Discuss how responsibilities come together in a class

Evaluate the given statement

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