an invisible component that’s used to group other components

the padding around the edge of the root windo

For a root window to begin listening for events, you must

call the mainloop() method after all the code that sets up the window

call the title() method to finish setting up the root window

call the pack() method to enable the listeners

. none of these are required to begin listening for events

In a program designed with the three-tier architecture, the developer

organizes the code for the program in three tiers

groups all data attributes and methods into tiers

uses objects in all three tiers

If an attribute can be calculated from other attributes in the class, you can

remove the attribute and add a method that calculates it from the other attributes

merge the attribute with the other attributes

redesign the system to avoid this calculatio

The five steps for designing an object-oriented program, in the order they should be followed, are:

1. Identify the data attributes 2. Subdivide each attribute 3. Identify the classes 4. Identify the methods 5. Refine classes, attributes, methods

1. Identify the classes 2. Identify the methods 3. Identify the data attributes 4. Subdivide each attribute 5. Refine classes, attributes, methods

1. Identify the classes 2. Identify the data attributes 3. Subdivide each attribute 4. Identify the methods 5. Refine classes, attributes, methods

1. Identify the methods 2. Identify the classes 3. Identify the data attributes 4. Subdivide each attribute 5. Refine classes, attributes, methods

Refer to below code example: class Product: . . . def getDescription(self): return Product.getDescription(self) + " (" + str(self.year) + ")" If a class named App inherits the Product class, you can add an attribute named version by coding the constructor for the App class like this:

def init (self, name="", price=0.0, version="1.0"): Product.__init__(self, name, price) self.version = version

def init (self, version="1.0"): self.version = version

def init (self, name="", price=0.0, version="1.0"): App.__init__(self, name, price, version)

def init (self, name="", price=0.0, version="1.0"): App.__init__(self, name, price) self.version = version

Refer to below diagram. If you create an object from the Movie class, which attribute(s) can you access from that object? DIAGRAM

name, price, discountPercent, and year

name, price, and discountPercent

Refer to below diagram. Which of the following is true? DIAGRAM

The Book and Movie classes inherit the Product class.

The Product class inherits the Book and Movie classes.

The Product class inherits the Book class only

The Book and Movie classes inherit each other

Refer to the below code example, class Rectangle: . . . def getStr(self): return str(self.height) + " by " + str(self.width) If the Rectangle class is stored in a module named shapes, which of the following imports the class and creates an object from it?

from shapes import Rectangle rectangle = Rectangle(10, 20)

import shapes rectangle = Rectangle(10, 20)

import Rectangle from shapes rectangle = Rectangle(10, 20)

import Rectangle from shapes rectangle = new Rectangle(10, 20)

Refer to the below code example, 1. class Rectangle: . . . def getStr(self): return str(self.height) + " by " + str(self.width) What is another way to code the getArea() method and have it perform the same task?

def getArea(self): return self.height * self.width

def getArea(self): area = self.height * self.width return

def getArea(self): self.area = self.height * self.width

def getArea(): return height * width

Refer to the below code example, class Rectangle: . . . def getStr(self): return str(self.height) + " by " + str(self.width) Which of the following adds an attribute named color to the class?

def init (self, height, width): self.height = height self.width = width self.color = "red"

def init (self, height, width, color): self.height = height self.width = width

def init (self, height, width, color): self.height = height self.width = width color = color

def init (self, height, width): self.height = height self.width = width color = "red

. Refer to the below code example, class Rectangle: . . . def getStr(self): return str(self.height) + " by " + str(self.width) Which of the following is the code for the constructor?

def init (self, height, width): self.height = height self.width = width

def getPerimeter(self): perimeter = self.height 2 + self.width 2 return perimeter

def getArea(self): area = self.height * self.width return area

def getStr(self): return str(self.height) + " by " + str(self.width )

Which of the following defines a constructor that initializes one attribute?

def init (self, name): self, name = name

def init (name): this.name = name

def init (this, name): name = this.name

def init (name): self.name = name

Final computer scince Azi WTAMU

Authored by Michelle Solorzano

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Unified Modeling Language

describes the classes and objects of an application

can be used to write the pseudo code for a class

can be used to write the code that defines a class

is a scripting language for working with objects

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A UML class diagram

describes the functions of one or more modules

shows the state of one of more classes

describes the attributes and methods of one or more classes

shows the relationship between the identity of an object and its state

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given a variable named p that refers to a Product object, which of the following statements accesses the price attribute of the Product object?

Product.price

p.price

Product.price()

p.price()

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After you identify the data attributes for an object, you can identify the methods that

store the data for the object

define the behavior of an object

access the object

can be deleted

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a data attribute contains two or more components, you should consider

combining it with other attributes

removing it from your list of attributes

subdividing it into multiple attributes

storing it in a separate class

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a three-tier architecture, the business tier stores the code that

controls the user interface

defines the business objects

accesses the file or database

handles all monetary transactions

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to Code Example 18-1: Which code snippet adds the frame to the root window?

root = tk.Tk() root.title("Escape from the Maze") root.geometry("600x300")

frame = ttk.Frame(root, padding="200 100 200 100") frame.pack(fill=tk.BOTH, expand=True)

import tkinter as tk from tkinter import ttk

root.mainloop()

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Final computer scince Azi WTAMU

The Unified Modeling Language

A UML class diagram

Given a variable named p that refers to a Product object, which of the following statements accesses the price attribute of the Product object?

After you identify the data attributes for an object, you can identify the methods that

If a data attribute contains two or more components, you should consider

In a three-tier architecture, the business tier stores the code that

Refer to Code Example 18-1: Which code snippet adds the frame to the root window?

To lay out components in a series of rows and columns, you can use the __________ method

A component that only displays text is known as a

Most tkinter components, like frames and buttons, have a constructor that accepts __________ as its first argument.

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