Purpose of “self” parameter:

• It is required in every method of a class.

• This parameter refers to the specific object that the method operates on.

• It must be present in a method.

• It is automatically assigned to the object that was just created.

Example:

#define the class Emp_class

class Emp_class:

         #defined the init method

         def init(self, name, salary):

              #assign name

              self.name = name

              #assign salary

              self...

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Chapter 10, Problem 3TF

Chapter 10, Problem 5TF

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Assignment:The BankAccount class models an account of a customer. A BankAccount has the followinginstance variables: A unique account id sequentially assigned when the Bank Account is created. A balance which represents the amount of money in the account A date created which is the date on which the account is created.The following methods are defined in the BankAccount class: Withdraw – subtract money from the balance Deposit – add money to the balance Inquiry on:o Balanceo Account ido Date created

True or False An interface can be used to define a set of methods that a class must implement.

Code the StudentAccount class according to the class diagramMethods explanation:pay(double): doubleThis method is called when a student pays an amount towards outstanding fees. The balance isreduced by the amount received. The updated balance is returned by the method.addFees(double): doubleThis method is called to increase the balance by the amount received as a parameter. The updatedbalance is returned by the method.refund(): voidThis method is called when any monies owned to the student is paid out. This method can onlyrefund a student if the balance is negative. It displays the amount to be refunded and set thebalance to zero. (Use Math.abs(double) in your output message). If there is no refund, display anappropriate message.Test your StudentAccount class by creating objects and calling the methods addFees(), pay() andrefund(). Use toString() to display the object’s data after each method called

Chapter 10 Solutions

Starting Out with Python (3rd Edition)

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Ch. 10.4 - What is an object?Ch. 10.4 - Prob. 2CP Ch. 10.4 - Why is an object's internal data usually hidden...Ch. 10.4 - What are public methods? What are private methods?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 - 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...

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Solution Summary: The author explains the purpose of the "self" parameter, which refers to the specific object that the method operates on.

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Chapter 10 Solutions