“str” method:

• It is used to display an object’s state.

• The object’s state is the value of the object’s attribute.

• This method returns a string containing the object’s state.

• When an object is passed as an argument to the print function, this “str” method is automatically called.

• It is also called when an object is passed as an argument to the built-in str function.

Example:

#define the class Example_class

class Example_class:

  #init method for the class

         def init(self, id):

              #assign for id

              self...

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Chapter 10.2, Problem 10CP

Chapter 10.3, Problem 12CP

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Chapter 10 Solutions

Starting Out with Python (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...

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Solution Summary: The author describes the "__str_()" method, which displays an object's state and returns a string containing its state. It is also called when the object is passed as an argument to the built-in

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