Question 1

Match each definition with its term.
-Refers to the values of all instance variables for an object.

Accepted Answer

A)  State 
B)  Class 
C)  Mutator method 
D)  Accessor method 
A)  State 
B)  Class 
C)  Mutator method 
D)  Accessor method

Question 2

Case Study 2:
1. def createSSandAnimate():
2. ss = SolarSystem(2, 2)
3.
4. sun = Sun("SUN", 5000, 1000, 5800)
5. ss.addSun(sun)
6.
7. m = Planet("MERCURY", 19.5, 1000, .25, 0, 2, "blue")
8. ss.addPlanet(m)
9.
10. m = Planet("EARTH", 47.5, 5000, 0.3, 0, 2.0, "green")
11. ss.addPlanet(m)
12.
13. m = Planet("MARS", 50, 9000, 0.5, 0, 1.63, "red")
14. ss.addPlanet(m)
15.
16. m = Planet("JUPITER", 100, 49000, 0.7, 0, 1, "black")
17. ss.addPlanet(m)
18.
19. numTimePeriods = 2000
20. for aMove in range(numTimePeriods):
21. ss.movePlanets()
22.
23. ss.freeze()
24.
-Refer to the session in the accompanying Case Study 2. Which line(s) perform the actual work of the animation?

Accepted Answer

A)  4-5 
B)  10-11 
C)  16-17 
D)  19-21 
A)  4-5 
B)  10-11 
C)  16-17 
D)  19-21

Question 3

Match each definition with its term.
-Describes a procedure that changes an object in some way.

Accepted Answer

A)  State 
B)  Class 
C)  Mutator method 
D)  Accessor method 
A)  State 
B)  Class 
C)  Mutator method 
D)  Accessor method

Question 4

Algorithms describe the solution to a problem in terms of the data needed to represent the problem instance and a set of steps necessary to produce the intended result.

Accepted Answer

A) True 
 B)False

Question 5

Each object from a particular class has the same instance variables, but the values of those variables are different, therefore allowing the object to "behave" differently when asked to perform methods.

Accepted Answer

A) True 
 B)False

Question 6

Preceding an instance variable name by two underscores____ the instance variable.

Accepted Answer

A)  exposes 
B)  hides 
C)  mutates 
D)  accesses 
A)  exposes 
B)  hides 
C)  mutates 
D)  accesses

Question 7

Which of the following is one of Python's collection classes?

Accepted Answer

A)  int 
B)  float 
C)  bool 
D)  str 
A)  int 
B)  float 
C)  bool 
D)  str

Question 8

The turtle module only allows one turtle to exist simultaneously in the same window.

Accepted Answer

A) True 
 B)False

Question 9

The __class__ method is used to provide each object with a reference to the class definition object to which it belongs.

Accepted Answer

A) True 
 B)False

Question 10

____ objects store method names that refer to method definitions that are implemented by the class.

Accepted Answer

A)  Mutator 
B)  Instance 
C)  Class definition 
D)  Self 
A)  Mutator 
B)  Instance 
C)  Class definition 
D)  Self

Question 11

In Python, the constructor is always named:

Accepted Answer

A)  __get__. 
B)  __init__. 
C)  constructor. 
D)  class. 
A)  __get__. 
B)  __init__. 
C)  constructor. 
D)  class.

Question 12

What are mutator methods?

Accepted Answer

Mutator methods are procedures that muta

Question 13

Explain the use of special class methods that Python provides.

Accepted Answer

Python provides some special class metho

Match each definition with its term. -Refers to the values of all instance variables for an object.

Match each definition with its term. -Describes a procedure that changes an object in some way.

Algorithms describe the solution to a problem in terms of the data needed to represent the problem instance and a set of steps necessary to produce the intended result.

Each object from a particular class has the same instance variables, but the values of those variables are different, therefore allowing the object to "behave" differently when asked to perform methods.

Preceding an instance variable name by two underscores____ the instance variable.

Which of the following is one of Python's collection classes?

The turtle module only allows one turtle to exist simultaneously in the same window.

The class method is used to provide each object with a reference to the class definition object to which it belongs.

____ objects store method names that refer to method definitions that are implemented by the class.

In Python, the constructor is always named:

What are mutator methods?

Explain the use of special class methods that Python provides.

Introduction to Python: Introduction to Numeric Types, Turtle Graphics, Simple for Loops and Functions

Pthon: Estimating PI: Math and Random Methods, Selection and Boolean Expressions, the Print Function

Codes and Other Secrets: String Operators and Methods, the Len Built-In Function, Keyword Parameters, User Input

Introducing the Python Collections: Lists, Dictionaries, Tuples, and Statistics

Bigger Data: File Io: the While Loop, String Formatting, Reading Online Data in CSV and Json Formats

Image Processing: Nested for Loops, Functions As Parameters, Namespaces, Lists of Lists

Data Mining: Cluster Analysis: More on the While Loop; Parrallel Lists

Cryptanalysis: Advanced Dictionaries and Lists, Regular Expressions

Fractals: the Geometry of Nature: Recursion, Grammars and Production Rules

Simulation:computer Simulation Using Objects

Father Was a Rectangle: Inheritance and Object-Oriented Design

Video Games: Multithreading, Event Handlers, Static Variables

Filters

Exam 10: Astronomy: Creating Classes, Writing Constructors, Accessors, Mutators and Special Methods

Match each definition with its term. -Refers to the values of all instance variables for an object.

Match each definition with its term. -Describes a procedure that changes an object in some way.

Algorithms describe the solution to a problem in terms of the data needed to represent the problem instance and a set of steps necessary to produce the intended result.

Each object from a particular class has the same instance variables, but the values of those variables are different, therefore allowing the object to "behave" differently when asked to perform methods.

Preceding an instance variable name by two underscores____ the instance variable.

Which of the following is one of Python's collection classes?

The turtle module only allows one turtle to exist simultaneously in the same window.

The __class__ method is used to provide each object with a reference to the class definition object to which it belongs.

____ objects store method names that refer to method definitions that are implemented by the class.

In Python, the constructor is always named:

What are mutator methods?

Explain the use of special class methods that Python provides.

Introduction to Python: Introduction to Numeric Types, Turtle Graphics, Simple for Loops and Functions

Pthon: Estimating PI: Math and Random Methods, Selection and Boolean Expressions, the Print Function

Codes and Other Secrets: String Operators and Methods, the Len Built-In Function, Keyword Parameters, User Input

Introducing the Python Collections: Lists, Dictionaries, Tuples, and Statistics

Bigger Data: File Io: the While Loop, String Formatting, Reading Online Data in CSV and Json Formats

Image Processing: Nested for Loops, Functions As Parameters, Namespaces, Lists of Lists

Data Mining: Cluster Analysis: More on the While Loop; Parrallel Lists

Cryptanalysis: Advanced Dictionaries and Lists, Regular Expressions

Fractals: the Geometry of Nature: Recursion, Grammars and Production Rules

Simulation:computer Simulation Using Objects

Father Was a Rectangle: Inheritance and Object-Oriented Design

Video Games: Multithreading, Event Handlers, Static Variables

Filters

The class method is used to provide each object with a reference to the class definition object to which it belongs.