Starting Out with Programming Logic and Design (4th Edition)
4th Edition
ISBN: 9780133985078
Author: Tony Gaddis
Publisher: PEARSON
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Expert Solution & Answer
Chapter 14.1, Problem 14.2CP
Explanation of Solution
Encapsulation:
- It combines the data and code into a single object
- It helps in restricting access to the methods.
- This helps in preventing the data from being modified due to accident.
- Object’s variable is not directly accessible.
- Underscore helps in preventing the data being accessed directly.
The encapsulation rules in python can be summarized as follows.
| Public method | It is accessible from anywhere. |
| Public variables | It can be accessed from anywhere. |
| Private method | It can be accessed only in their own class |
| Private method | It is accessible only in their class or method. |
- It protects the data from tampering. By declaring the data field as private, direct modifications of properties is prevented...
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A rectangle can be formed given two points, the top left point and the bottom right point. Assuming that the top left corner of the console is point (0, 0), the bottom right corner of the console is point (MAX, MAX) and given two points (all “x” and “y” coordinates are positive), you should be able to draw the rectangle in the correct location, determine if it is a square or a rectangle, and compute for its area, perimeter and center point. To be able to do this, you should create a class Point (that has an x-coordinate and a y-coordinate). Also, create another class called Rectangle. The Rectangle should have 2 points, the top left and the bottom right. You should also implement the following methods for the Rectangle:
display() - draws the rectangle on the console based on the samplearea() - computes and returns the area of a given rectangleperimeter() - computes and returns the perimeter of a given rectanglecenterPoint() - computes and returns the center point…
Chapter 14 Solutions
Starting Out with Programming Logic and Design (4th Edition)
Ch. 14.1 - What is an object?Ch. 14.1 - Prob. 14.2CPCh. 14.1 - Prob. 14.3CPCh. 14.1 - What are public methods? What are private methods?Ch. 14.2 - You hear someone make the following comment: A...Ch. 14.2 - In this chapter, we use the metaphor of a cookie...Ch. 14.2 - Prob. 14.7CPCh. 14.2 - Prob. 14.8CPCh. 14.2 - When a class variable is said to reference an...Ch. 14.2 - Prob. 14.10CP
Ch. 14.2 - Prob. 14.11CPCh. 14.2 - What is a constructor? When does a constructor...Ch. 14.2 - What is a default constructor?Ch. 14.3 - Prob. 14.14CPCh. 14.3 - Suppose a class has a field named description. The...Ch. 14.3 - Prob. 14.16CPCh. 14.4 - Prob. 14.17CPCh. 14.4 - What technique was described in this section for...Ch. 14.4 - What are classes responsibilities?Ch. 14.4 - Prob. 14.20CPCh. 14.5 - In this section, we discussed superclasses and...Ch. 14.5 - Prob. 14.22CPCh. 14.5 - What does a subclass inherit from its superclass?Ch. 14.5 - Look at the following pseudocode; which is the...Ch. 14.6 - Look at the following pseudocode class...Ch. 14 - Prob. 1MCCh. 14 - Prob. 2MCCh. 14 - A(n) ____ is a member of a class that holds data....Ch. 14 - The _________ specifies how a classs field or...Ch. 14 - A classs fields are commonly declared with the...Ch. 14 - Prob. 6MCCh. 14 - In many programming languages, the _____ key word...Ch. 14 - A(n) ____ method gets a value from a class's field...Ch. 14 - A(n) ____ method stores a value in a field or...Ch. 14 - A(n) ____ method is automatically called when an...Ch. 14 - A set of standard diagrams for graphically...Ch. 14 - When the value of an item is dependent on other...Ch. 14 - A classs responsibilities are _____. a. objects...Ch. 14 - In an inheritance relationship, the _____ is the...Ch. 14 - In an inheritance relationship, the _____ is the...Ch. 14 - The ___________ characteristic of object-oriented...Ch. 14 - The practice of procedural programming is centered...Ch. 14 - Object reusability has been a factor in the...Ch. 14 - It is a common practice in object-oriented...Ch. 14 - One way to find the classes needed for an...Ch. 14 - The superclass inherits fields and methods from...Ch. 14 - Polymorphism allows a class variable of the...Ch. 14 - Prob. 1SACh. 14 - Prob. 2SACh. 14 - What is the difference between a class and an...Ch. 14 - In many programming languages, what does the New...Ch. 14 - The following pseudocode statement calls an...Ch. 14 - Prob. 6SACh. 14 - What does a subclass inherit from its superclass?Ch. 14 - Look at the following pseudocode, which is the...Ch. 14 - Prob. 1AWCh. 14 - Look at this partial class definition, and then...Ch. 14 - Look at the following description of a problem...Ch. 14 - In pseudocode, write the first line of the...Ch. 14 - Look at the following pseudocode class...Ch. 14 - Pet Class Design a class named Pet, which should...Ch. 14 - Car Class Design a class named Car that has the...Ch. 14 - Personal Information Class Design a class that...Ch. 14 - Emp1oyee and ProductionWorker Classes Design an...Ch. 14 - Essay Class Design an Essay class that extends the...
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