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.

• The object’s variable is not directly accessible.

• Underscore helps in preventing the data from 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 being tampered. By declaring the data field as private, direct modifications of properties are prevented.

• It makes the class easy to maintain and reduces the errors...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 10, Problem 7TF

Chapter 10, Problem 2SA

Students have asked these similar questions

Last Chance Securities The IT director opened the department staff meeting today by saying, "I've got some good news and some bad news. The good news is that management approved the payroll system project this morning. The new system will reduce clerical time and errors, improve morale in the payroll department, and avoid possible fines and penalties for noncompliance. The bad news is that the system must be installed by January 1st in order to meet new federal reporting rules, all expenses from now on must be approved in advance, the system should have a modular design if possible, and the vice president of finance would like to announce the new system in a year-end report if it is ready by mid-December." Tasks 1. Why is it important to define the project scope? How would you define the scope of the payroll project in this case? 2. Review each constraint and identify its characteristics: present versus future, internal versus exter- nal, and mandatory versus desirable. 3. What…

2. Signed Integers Unsigned binary numbers work for natural numbers, but many calculations use negative numbers as well. To deal with this, a number of different methods have been used to represent signed numbers, but we will focus on two's complement, as it is the standard solution for representing signed integers. 2.1 Two's complement • Most significant bit has a negative value, all others are positive. So, the value of an n-digit -2 two's complement number can be written as: Σ2 2¹ di 2n-1 dn • Otherwise exactly the same as unsigned integers. i=0 - • A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1, or 1 becomes 0) and then add 1 to the least significant bit. • Addition is exactly the same as with an unsigned number. 2.2 Exercises For questions 1-3, answer each one for the case of a two's complement number and an unsigned number, indicating if it cannot be answered with a specific representation. 1. (15 pts) What is the largest integer…

can u solve this question

Chapter 10 Solutions

Starting Out with Python, Student Value Edition (4th Edition)

Ch. 10.1 - What is an object?Ch. 10.1 - Prob. 2CP Ch. 10.1 - Why is an object's internal data usually hidden...Ch. 10.1 - What are public methods? What are private methods?Ch. 10.2 - You hear someone make the following comment: "A...Ch. 10.2 - In this chapter, we use the metaphor of a cookie...Ch. 10.2 - What is the purpose of the _ _init_ _ method? When...Ch. 10.2 - Prob. 8CP Ch. 10.2 - In a Python class, how do you hide an attribute...Ch. 10.2 - What is the purpose of the _ _str_ _ method?

Ch. 10.2 - Prob. 11CP Ch. 10.3 - What is an instance attribute?Ch. 10.3 - Prob. 13CP Ch. 10.3 - What is an accessor method? What is a mutator...Ch. 10.4 - Prob. 15CP Ch. 10.4 - Prob. 16CP Ch. 10.4 - When designing an object-oriented application, who...Ch. 10.4 - How do you identify the potential classes in a...Ch. 10.4 - What are a classs responsibilities?Ch. 10.4 - What two question should you ask to determine a...Ch. 10.4 - Will all of a class's action always be directly...Ch. 10 - The _______ programming practice is centered on...Ch. 10 - The ___________ programming practice is centered...Ch. 10 - A(n) _____ is a component of a class that...Ch. 10 - Prob. 4MC Ch. 10 - By doing this, you can hide a classs attribute...Ch. 10 - Prob. 6MC Ch. 10 - A(n) ________ method stores a value in a data...Ch. 10 - Prob. 8MC Ch. 10 - If a class has a method named _ _str_ _ , which of...Ch. 10 - A set of standard diagrams for graphically...Ch. 10 - In one approach to identifying the classes in a...Ch. 10 - Prob. 12MC Ch. 10 - The practice of procedural programming is centered...Ch. 10 - Object reusability has been a factor in the...Ch. 10 - It is a common practice in object-oriented...Ch. 10 - Prob. 4TF Ch. 10 - Starting an attribute name with two underscores...Ch. 10 - You cannot directly call the _ _ str _ _ method.Ch. 10 - One way to find the classes needed for an...Ch. 10 - Prob. 1SA Ch. 10 - Why should an object's data attributes be hidden...Ch. 10 - What is the difference between a class and an...Ch. 10 - The following statement calls an object's method....Ch. 10 - Prob. 5SA Ch. 10 - In a Python class, how do you hide an attribute...Ch. 10 - Prob. 7SA Ch. 10 - Suppose my_car is the name of a variable that...Ch. 10 - Prob. 2AW Ch. 10 - Look at the following description of a problem...Ch. 10 - Pet Class The Pet class Write a class named Pet,...Ch. 10 - Car Class Write a class named Car that has the...Ch. 10 - Personal Information Class Design a class that...Ch. 10 - Employee Class Write a class named Employee that...Ch. 10 - RetailItem Class Write a class named RetailItem...Ch. 10 - Patient Charges Write a class named Patient that...Ch. 10 - Employee Management System This exercise assumes...Ch. 10 - Cash Register This exercise assumes you have...Ch. 10 - Trivia Game In this programming exercise, you will...

Knowledge Booster

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.

Solution Summary: The author summarizes the encapsulation rules in python as follows: Public method, public variables, private methods, and underscore.

Explanation of Solution

Want to see the full answer?

Chapter 10 Solutions