Question

1. Please write the following program in Python 3. Also, please create a UML and write the test program. Please show all outputs.

(The Fan class) Design a class named Fan to represent a fan. The class contains:

Three constants named SLOW, MEDIUM, and FAST with the values 1, 2, and 3 to denote the fan speed.

A private int data field named speed that specifies the speed of the fan.

A private bool data field named on that specifies whether the fan is on (the default is False).

A private float data field named radius that specifies the radius of the fan.

A private string data field named color that specifies the color of the fan.

The accessor and mutator methods for all four data fields.

A constructor that creates a fan with the specified speed (default SLOW), radius (default 5), color (default blue), and on (default False).

Draw the UML diagram for the class and then implement the class. Write a test program that creates two Fan objects. For the first object, assign the maximum speed, radius 10, color yellow, and turn it on. Assign medium speed, radius 5, color blue, and turn it off for the second object.Display each object’s speed, radius, color, and on properties.

Answer 1

Hello,

Here is the code for class FAN in Python 3, and also UML diagram attahced below this code.

I have provide the in-line comments inside the code to make it slef explanatory and UML diagram is easy to understand:

#To execute the code you must have python installed on your machine and copy paste this code to editor and save thee file with .py extension. Then go to command promt and navigate to the directory where your file is present. Once you are in the same directory where is your .py file execute the code by followinf command:

python abc.py (where abc is the name of the file)

************************Python 3 Code Start*********************************

#Creating a FAN Class with accessor and mutator methods for speed,on,radius and color

class FAN():

#main code to hold the constant values

def __init__(self):

self.__my_attr_speed = 2

self.__my_attr_on = "False"

self.__my_attr_radius = 5

self.__my_attr_color = "Blue"

#This is accessor for all four attributes

def set_my_attr_speed(self,speed,on,radius,color):

self.__my_attr_speed = speed

self.__my_attr_on = on

self.__my_attr_radius = radius

self.__my_attr_color = color

#This is mutator method for all four attributes

def get_my_attr_speed(self):

return str(self.__my_attr_speed) + "," + str(self.__my_attr_on) + "," + str(self.__my_attr_radius) + "," + str(self.__my_attr_color)

#Initiatilizing the Program with three constant.

print("\n******* FAN CLass ******\n Speed constant\n 1. SLOW \n 2. MEDIUM \n 3. FAST")

#Creating first object to print the default values

myObject = FAN()

print("\nDefault values:\n")

print (myObject.get_my_attr_speed())

print("\n****************************")

print("\nFirst FAN object with maximum speed, radius 10, color yellow, and on:\n")

#Creating second object to print the default values

myObject1 = FAN()

#Initatializing the constructor with follwing values

myObject1.set_my_attr_speed(3,"True",10,"Yellow")

print (myObject1.get_my_attr_speed())

print("\n****************************")

print("\nSecond FAN object with medium speed, radius 5, color blue, and off:\n")

#Creating third object to print the default values

myObject2 = FAN()

#Initatializing the constructor with follwing values

myObject2.set_my_attr_speed(1,"False",5,"Blue")

print (myObject2.get_my_attr_speed())

************************Python 3 Code End*********************************

UML Diagam:

Hope you find helpful.

Thanks