Starting Out with Python (3rd Edition)
3rd Edition
ISBN: 9780133582734
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 10, Problem 7SA
Explanation of Solution
The “__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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Microsoft Visual C# 7th edition. In Chapter 7, you modified the GreenvilleRevenue program to include a number of methods.
Now, using your code from Chapter 7 Case Study 1, modify your program so every data entry statement uses a TryParse() method to ensure that each piece of data is the correct type.
Any invalid user entries should generate an appropriate message that contains the word Invalid, and the user should be required to reenter the data.
I am working in CENGAGE MINDTAP. Here is my code, but the TryParse is not working. I am not getting the point for TryParse. thanks
using System;
using static System.Console;
using System.Globalization;
class GreenvilleRevenue
{
static void Main()
{
int numLastYear;
int numThisYear;
double revenue;
int fee = 25;
const int MAX_CONTESTANTS = 30;
string[] names = new string[MAX_CONTESTANTS];
char[] talents = new char[MAX_CONTESTANTS];
char[] talentCodes = { 'S', 'D', 'M', 'O' };
string[]…
I need help with this short answer python questionHow do you call the __str__ method?
Chapter 10 Solutions
Starting Out with Python (3rd Edition)
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. 8CPCh. 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. 11CPCh. 10.3 - What is an instance attribute?Ch. 10.3 - Prob. 13CPCh. 10.3 - What is an accessor method? What is a mutator...
Ch. 10.4 - What is an object?Ch. 10.4 - Prob. 2CPCh. 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. 15CPCh. 10.4 - Prob. 16CPCh. 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. 4MCCh. 10 - By doing this, you can hide a classs attribute...Ch. 10 - Prob. 6MCCh. 10 - A(n) ________ method stores a value in a data...Ch. 10 - Prob. 8MCCh. 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. 12MCCh. 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. 4TFCh. 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. 1SACh. 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. 5SACh. 10 - In a Python class, how do you hide an attribute...Ch. 10 - Prob. 7SACh. 10 - Suppose my_car is the name of a variable that...Ch. 10 - Prob. 2AWCh. 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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