Write a test_book.py file. Complete the following tasks. A . Create 2 book objects with the following information "Get Started with Python", 66.99, 100 "Get Started with Visual Basic", 55.99, 88 B. If you have sold 10 copies of "Get Started with Python", call sell_copies() method of object to change the quantity of the book. Display the current quantity of book on screen to verify the information is correct. C. Use pickle to save the information of the 2 books in book.dat file. write the code in python please and thank you

*IN PYTHON*

IN PYTHON PLEASE, THANK YOU!!!

Create a simple guessing game, similar to Hangman, in which the user guessesletters and then attempts to guess a partially hidden phrase. Display a phrase inwhich some of the letters are replaced by asterisks: for example, G* T*** (for GoTeam). Each time the user guesses a letter, either place the letter in the correctspot (or spots) in the phrase and display it again or tell the user the guessed letteris not in the phrase. Display a congratulatory message when the entire correctphrase has been deduced. Save the game as SecretPhrase.java. In the nextchapter, you will modify this program so that instead of presenting the user withthe same phrase every time the game is played, the program randomly selects thephrase from a list of phrases. Professor's note: "HINT on Lab #4 : Be sure to check for UPPER & LOWER Case entries from the User when they enter guessed characters for your phrase."

Description is " A MathVector object will be passed to your method. Return its contents as a String. If you look in the file MathVector.java you'll see there is a way to output the contents of a MathVector object as a String. This makes it useful for displaying to the user. You might have noticed that there's an @override term there. That's because many objects already have a "toString()" method associated with them... because Java was designed to include them by default. Here, the override tells Java "I know, I know. You already have a toString() that you'd assign here. But it's not good enough. Here's a better one for this particular kind of object." It's a little bit like saying "Most humans have two legs. So, by default, I'll give everyone two legs. But sometimes we override that and give no legs, or just one leg to a person. And sometimes we give them four so that they can be a centaur!" To use this in a println() method, just name your object. The toString()...

What error message do you see in the Code Pad if you type the following? NumberDisplay.getValue() Take a careful look at this error message and try to remember it because you will likely encounter something similar on numerous future occasions. Note that the reason for the error is that the class name, NumberDisplay, has been used incorrectly to try to call the getValue method, rather than the variable name nd.

Modify the Dice Poker program from this chapter to include any or all of the following features: 1- Splash Screen. When the program first fires up, have it print a short introductory message about the program and buttons for "Let's Play" and "Exit." The main interface shouldn't appear unless the user se- lects "Let's Play." 2-Add a "Help" button that pops up another window displaying the rules of the game (the payoffs table is the most important part). 3-Add a high score feature. The program should keep track of the 10 best scores. When a user quits with a good enough score, he/she is invited to type in a name for the list. The list should be printed in the splash screen when the program first runs. The high-scores list will have to be stored in a file so that it persists between program invocations.

JAVA

In C++ program

Select all the statements that are true about Python's unittest module and Django's test framework: a. Django's test framework builds on Python's unittest module b. Django's TestCase class is a sub-class of unittest.TestCase c. A collection of unit tests is called a "test suite" d. Unit tests are run using the same database that the programmer uses for the development server e. HTML assert methods (such as assertHTMLEqual) are already part of Python's unittest.TestCase

java-Find the area of circle using method... Write an application that prompts the user for the radius of a circle and uses a method called circleArea to find tarea of the circle. method method should return the computed area to the caller method.

The Object data type (and those related to it like Function and Date) is the only JavaScript data type that has methods. True or False (Include valid reason)

In this assignment you will demonstrate your knowledge of debugging by fixing the errors you find in the program below. Fix the code, and paste it in this document, along with the list of the problems you fixed.This example allows the user to display the string for the day of the week. For example, if the user passed the integer 1, the method will return the string Sunday. If the user passed the integer 2, the method will return Monday. This code has both syntax errors and logic errors. Hint: There are two logic errors to find and fix (in addition to the syntax errors).Inport daysAndDates.DaysOfWeek;public class TestDaysOfWeek {public static void main(String[] args) {System.out.println("Days Of week: ");for (int i = 0;i < 8;i++) {System.out.println("Number: " + i + "\tDay Of Week: " + DaysOfWeek.DayOfWeekStr(i) )}}}package daysAndDatespublic class DaysOfWeek {public static String DayOfWeekStr(int NumberOfDay) {String dayStr = ""switch (NumberOfDay) {case 1:dayStr =...