Question 1

Which statement successfully creates a new Apple object?

Question options:

x = Fruit()

x = Fruit("Apple")

x = Apple()

x = Apple("McIntosh")

Question 2

Given the code snippet below, what methods does an object of the Rectangle class have? class GeometricShape :

def __init__(self, x, y) : self._x = x

self._y = yself._fill = None self._outline = "blue" ...

def getX(self) : return self._x

def getY(self) : return self._y

class Rectangle(GeometricShape) :def __init__(self, x, y, width, height) :

super().__init__(x, y) self._width = width self._height = height

def getWidth(self) : return self._width

def getHeight(self) : return self._height

Question options:

getWidth(), getHeight()

getX(), getY(), getWidth(), getHeight()

getX(), getY(), setColor()

getX(), getY(), getWidth(), getHeight()

Question 3

What object oriented programming concept can often be used to eliminate explicit type tests?

Question options:

Class variables

Encapsulation

Functions

Polymorphism

Question 4

Consider the following class which is used to represent a polygon consisting of an arbitrary number of (x, y) points:class Polygon :

def __init__(self) :

self._x_points = []

self._y_points = []

Which of the following code segments is the correct implementation for the addPoint method that adds another point to the polygon?

def addPoint(self, x, y) :

self._points.append(x, y)

def addPoint(self, x, y) :

self._x_points.append(x)

self._y_points.append(y)

def addPoint(self, x, y) :

self._x_points = x

self._y_points = y

def addPoint(self, x, y) :

self._x_points = [x]

self._y_points = [y]

Question 5

In the following example, which data is considered instance data?

You are assigned the task of writing a program that calculates payroll for a small company. To get started the program should do the following:

Add new employees including their first and last name and hourly wage

Ask for the number of hours worked

Calculate payroll (applying 1.5 for any hours greater than 40)

Print a report of all employees' salary for the week, total of all hours and total of all salaries

Question options:

	firstName, lastName, hoursWorked, hourlyWage
	firstName, lastName, hoursWorked, hourlyWage, payrollAmount
	firstName, lastName, hoursWorked, hourlyWage, totalHours, totalSalary
	firstName, lastName, hoursWorked, hourlyWage, payrollAmount, totalHours, totalSalary

Question 6

Consider the following function:

1.2.3.4.5.6.What will happen if lines #2 and #3 were swapped with lines #4 and #5?

def mystery(n, if n == 0 : return 0 if n == 1 : return m

m) :# special case 1

# special case 2 return m + mystery(n - 1), m)

What will happen if lines #2 and #3 were swapped with lines #4 and #5?

Question options:

The original function and the modified function will return the same result for all integer values of n and m.

The original function and the modified function will return different results for all integer value of n and m.

The original function and the modified function will return the same result when n is greater than m, and different results when m is greater than n.

The original function and the modified function will return the same result when n is less than m, and different results when m is less than n.

Question 6

Consider the following code segment:

def f1(n) :

if n < 0 :

return 0

if n % 2 == 1 :

return n

return f2(n + 1)

def f2(n) :

if n < 0 :

return 0

if n % 2 == 0 :

return n

return f1(n // 2)

print(f2(7))

When this code is run, it will display:

Question options:

0

1

3

7

The following function is supposed to use recursion to compute the area of a square from the length of its sides. For example, squareArea(3) should return 9.def squareArea(sideLength) :

if sideLength == 1 :

return 1

else :

____________________

What line of code should be placed in the blank to achieve this goal?

Question options:

return squareArea(sideLength - 1)

return 2 * squareArea(sideLength - 1)

return 2 * sideLength + squareArea(sideLength - 1)

return 2 * (sideLength 1 squareArea(sideLength - 1)