$course/Quizzes-201730/$Quiz 2/ After you do the exercises in the handout Getting started in Python ..., answer the following questions. Except where noted, you are welcome to use the Pydev Console or Idle to help answer these questions.]]> After you do the exercises in the handout Getting started in Python ..., answer the following questions. Except where noted, you are welcome to use the Pydev Console or Idle to help answer these questions.]]> true Numbers and arithmetic. Operators and expressions. Parentheses and precedence section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Numbers and arithmetic. Operators and expressions. Parentheses and precedence section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true true true 9 - (7 + 3) evaluate?]]> 9 - (7 + 3) evaluate?]]> true 9 - 7 + 3 evaluate? (Use the Python Console or Idle to find the answer to this question. And use parentheses in the expressions that you write so that you do not have to remember how non-parenthesized expressions work.)]]> 9 - 7 + 3 evaluate? (Use the Python Console or Idle to find the answer to this question. And use parentheses in the expressions that you write so that you do not have to remember how non-parenthesized expressions work.)]]> true Exceptions, run-time errors section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Exceptions, run-time errors section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true true Objects and Types. Int, float, string section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Objects and Types. Int, float, string section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true x = 54. What is the type of the object to which the variable x refers? REMINDER: The type function returns the type of its argument, so you can use it in the Python Console or Idle to find the answer to this quiz question.]]> x = 54. What is the type of the object to which the variable x refers? REMINDER: The type function returns the type of its argument, so you can use it in the Python Console or Idle to find the answer to this quiz question.]]> true x = 54. What is the value of the object to which the variable x refers?]]> x = 54. What is the value of the object to which the variable x refers?]]> true y = 3.713. What is the type of the object to which the variable y refers?]]> y = 3.713. What is the type of the object to which the variable y refers?]]> true y = 3.713. What is the value of the object to which the variable y refers?]]> y = 3.713. What is the value of the object to which the variable y refers?]]> true z = 'my best friend'. What is the type of the object to which the variable z refers?]]> z = 'my best friend'. What is the type of the object to which the variable z refers?]]> true z = 'my best friend'. What is the value of the object to which the variable z refers?]]> z = 'my best friend'. What is the value of the object to which the variable z refers?]]> true 3 * (4 + 1) evaluate to? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> 3 * (4 + 1) evaluate to? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true 3 * ('hi' + 'bye') evaluate to? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> 3 * ('hi' + 'bye') evaluate to? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true Variables and Assignment section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Variables and Assignment section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true my_friend the value 'Betty Bop'.]]> my_friend the value 'Betty Bop'.]]> true print('hello')]]> print('hello')]]> true 'hello' appears on the Console]]> hello appears on the Console]]> "hello" appears on the Console]]> print(hello)]]> print(hello)]]> true true int as a variable name and created the following code: 
   int = 2.5
   print(int(int))
What happens when Bobby runs his code?]]> int as a variable name and created the following code: 
   int = 2.5
   print(int(int))
What happens when Bobby runs his code?]]> true int is no longer the name of a function but the name of a float.]]> int cannot be used as a variable name.]]> Dynamically typed versus statically typed section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Dynamically typed versus statically typed section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true =).]]> =).]]> true y = 5
y = y + 100 What is the value of y after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> y = 5
y = y + 100 What is the value of y after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true y = 5
y = y * 3
y = y + 1 What is the value of y after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> y = 5
y = y * 3
y = y + 1 What is the value of y after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true x = 5
x = x + 3
x = x * 10
What is the value of x after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> x = 5
x = x + 3
x = x * 10
What is the value of x after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true x = 5
x = x * 10
x = x + 3
What is the value of x after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> x = 5
x = x * 10
x = x + 3
What is the value of x after the code snippet runs? (Figure this out by hand, then check your answer in the PyDev Console or Idle if you wish.)]]> true The assignment operator is not symmetrict section of the Getting started in Python ... handout. Redo those exercises as needed.]]> The assignment operator is not symmetrict section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true a = b and b = a accomplish the same thing.]]> a = b and b = a accomplish the same thing.]]> true Calling functions section of the Getting started in Python ... handout. Redo those exercises as needed.]]> Calling functions section of the Getting started in Python ... handout. Redo those exercises as needed.]]> true x that has already been given a numeric value. Assume that the statement import math has already executed. Write a statement that sets the variable y to the sum of the sine of x and the cosine of x.]]> x that has already been given a numeric value. Assume that the statement import math has already executed. Write a statement that sets the variable y to the sum of the sine of x and the cosine of x.]]> true 20!, that is, to 20 factorial. Assume that the statement import math has already executed.]]> 20!, that is, to 20 factorial. Assume that the statement import math has already executed.]]> true Your First Programs, Part 4: Functions, doing the next set of questions while you do so.]]> Your First Programs, Part 4: Functions, doing the next set of questions while you do so.]]> true function definition?]]> function definition?]]> true body of the function (that is, how can we tell when one function ends and another starts)?]]> body of the function (that is, how can we tell when one function ends and another starts)?]]> true prints things (i.e., displays them on the console)?]]> prints things (i.e., displays them on the console)?]]> true def foo():
print('nice!')
x = 5
x = x * 10
print(x)

def blah():
print('ok') How many functions does the snippet define?]]> def foo():
print('nice!')
x = 5
x = x * 10
print(x)

def blah():
print('ok') How many functions does the snippet define?]]> true name of the SECOND function defined?]]> name of the SECOND function defined?]]> true foo function?]]> foo function?]]> true def main():
blah()
blah
blah

def blah():
print('one')
print('two')

main() How many lines does the above code snippet print on the Console when it runs?]]> def main():
blah()
blah
blah

def blah():
print('one')
print('two')

main() How many lines does the above code snippet print on the Console when it runs?]]> true true one
two
]]> one
one
one
two
two
two
]]> one
two
one
two
one
two
]]> def main():
blah()
blah
blah

def blah():
print('one')
print('two')

blah() Note that it is the same as the previous example except for the last line of the snippet. How many lines does the above code snippet print on the Console when it runs?]]> def main():
blah()
blah
blah

def blah():
print('one')
print('two')

blah() Note that it is the same as the previous example except for the last line of the snippet. How many lines does the above code snippet print on the Console when it runs?]]> true true one
two
]]> one
one
one
two
two
two
]]> one
two
one
two
one
two
]]> .]]> .]]> true call a function.]]> call a function.]]> true false begin a function definition.]]> begin a function definition.]]> true false false Calling Functions, doing the next set of questions while you do so.]]> Calling Functions, doing the next set of questions while you do so.]]> true ]]> ]]> true name of the function? HINT: There should be no parentheses in your answer.]]> name of the function? HINT: There should be no parentheses in your answer.]]> true true powerful? (Choose all that apply.)]]> powerful? (Choose all that apply.)]]> true false f_to_c function.]]> f_to_c function.]]> true f_to_c 5]]> f_to_c]]> def f_to_c(5)]]> f_to_c(5)]]> c = f_to_c(10.5)

is called (where the f_to_c function is as defined above)?]]> c = f_to_c(10.5)

is called (where the f_to_c function is as defined above)?]]> false Coding to a Specification, doing the next set of questions while you do so.]]> Coding to a Specification, doing the next set of questions while you do so.]]> true true how the component works.]]> how the component works.]]> true what the component does.]]> what the component does.]]> true Object Oriented Programming, doing the next set of questions while you do so.]]> Object Oriented Programming, doing the next set of questions while you do so.]]> true Lisp. What is the name of another?]]> Lisp. What is the name of another?]]> true is part of a:]]> is part of a:]]> true Beowulf]]> Procedural decomposition is:]]> Procedural decomposition is:]]> true true object oriented languages.]]> object oriented languages.]]> true procedural programming paradigm focuses on:]]> procedural programming paradigm focuses on:]]> true object-oriented programming paradigm focuses on:]]> object-oriented programming paradigm focuses on:]]> true true true Classes -- What objects know and can do, doing the next set of questions while you do so.]]> Classes -- What objects know and can do, doing the next set of questions while you do so.]]> true true own classes.]]> own classes.]]> true true instance variables that you would expect a Circle class to have.]]> instance variables that you would expect a Circle class to have.]]> true methods that you would expect a Person class to have.]]> methods that you would expect a Person class to have.]]> true p1 and p2 are both instances of a Point class, the names of the instance variables for p1 are the same as the names of the instance variables for p2.]]> p1 and p2 are both instances of a Point class, the names of the instance variables for p1 are the same as the names of the instance variables for p2.]]> true p1 and p2 are both instances of a Point class, the values of the instance variables for p1 are the same as the values of the instance variables for p2.]]> p1 and p2 are both instances of a Point class, the values of the instance variables for p1 are the same as the values of the instance variables for p2.]]> true instance variables of a class:]]> instance variables of a class:]]> true methods of a class:]]> methods of a class:]]> true Objects and Classes--Using Objects, doing the next set of questions while you do so.]]> Objects and Classes--Using Objects, doing the next set of questions while you do so.]]> true true true true true constructing an instance of a Dog class as defined in the rosegraphics (abbreviated rg) module. Which one?]]> constructing an instance of a Dog class as defined in the rosegraphics (abbreviated rg) module. Which one?]]> true rg.Dog.dog]]> rg.Point.dog]]> rg.Dog]]> rg.Dog('poodle')]]> rg.dog('poodle')]]> rg.Poodle()]]> rg.poodle()]]> true true false Dog after you have typed it, and look at the pop-up help.]]> Dog() and press the CTRL and Space keys.]]> p1 to it.]]> p1 to it.]]> true p2 = rg.Point(7, 3)
p1 = rg.Point(100, 50)
print((4 * p1.x) + p2.y
]]> p2 = rg.Point(7, 3)
p1 = rg.Point(100, 50)
print((4 * p1.x) + p2.y
]]> true instance variables and methods an object has?]]> instance variables and methods an object has?]]> true method (as opposed to, for example, an instance variable).]]> method (as opposed to, for example, an instance variable).]]> true Thinking Like a Computer -- Control Flow, doing the next set of questions while you do so.]]> Thinking Like a Computer -- Control Flow, doing the next set of questions while you do so.]]> true main is called in the program shown below? (Pay close attention to the order in which the statements are executed.) 
def main():
    hello()
    goodbye()
    hello()
   
def hello():
    print('Hello!')
    return 'Hello!'

def goodbye():
    print('Ciao!')
]]> main is called in the program shown below? (Pay close attention to the order in which the statements are executed.) 
def main():
    hello()
    goodbye()
    hello()
   
def hello():
    print('Hello!')
    return 'Hello!'

def goodbye():
    print('Ciao!')
]]> Hello!]]> Ciao!]]> Hello!]]> false main is called in the program shown below? (Hint: this code is very similar to the code in the previous problem, and this problem is a bit of a "trick" question.) 
def main():
    hello()
    goodbye()
    hello()
   
def hello():
    print('Hello!')
    return 'Hello!'
    print('Hello Again!')
   
def goodbye():
    print('Ciao!')
]]> main is called in the program shown below? (Hint: this code is very similar to the code in the previous problem, and this problem is a bit of a "trick" question.) 
def main():
    hello()
    goodbye()
    hello()
   
def hello():
    print('Hello!')
    return 'Hello!'
    print('Hello Again!')
   
def goodbye():
    print('Ciao!')
]]> Hello!]]> Ciao!]]> Hello!]]> Hello Again!]]> false main is called in the program shown below? (You will probably want to use post-it cards (as in the video) or some written notes to help you solve this problem.) 

def main():
    big()
    bigger()
    big()

def big():
    print('basketball')

def bigger():
    print('truck')
    big()
]]> main is called in the program shown below? (You will probably want to use post-it cards (as in the video) or some written notes to help you solve this problem.) 

def main():
    big()
    bigger()
    big()

def big():
    print('basketball')

def bigger():
    print('truck')
    big()
]]> false main is called in the program shown below? (You will probably want to use post-it cards (as in the video) or some written notes to help you solve this problem.) 

def main():
    big()
    bigger()
    biggest()
    big()

def big():
    print('basketball')

def bigger():
    print('truck')
    big()

def biggest():
    print('house')
    bigger()
    big()
]]> main is called in the program shown below? (You will probably want to use post-it cards (as in the video) or some written notes to help you solve this problem.) 

def main():
    big()
    bigger()
    biggest()
    big()

def big():
    print('basketball')

def bigger():
    print('truck')
    big()

def biggest():
    print('house')
    bigger()
    big()
]]> false