Question

PROJECT 6    Functions

You are to write a PYTHON program which:

*Defines the following 4  functions:

whoamI()

This function prints out your name and lists any programming course you have taken prior to this course.

isEven(number)

This function accepts one parameter, a number, and prints out a message indicating if the number is even or odd. Keep in mind that a number is even if there is no remainder when the number is divided by two.

printEven(number)

This function accepts one parameter, a number, and prints out all even values from 2 thru this number.

countDown(number)

This function accepts one parameter, a number, and prints out ALL values from this number down thru 1.

It would be a good idea to write a simple main to test your functions individually and make sure they work before you continue on.

* follows the function definition with main process statements which:

1.) calls the 'whoamI' function to that the program begins by outputting uses information

2.) prompt the user for a positive int and store it

   If the user does not enter a valid number, reprompt. Continue this until a valid value

   has been entered.

3.) present the user with 3 choices:  

              -find out if the number is even or odd

              -see printout of all even values up to the number

              -see printout of all values from number downto 1

4.) Carry out the user’s choice. Be sure to call one of the functions that you have defined to do this.

If you wish you may put the main statements in a loop which repeats until the user chooses to exit. This will make testing easier.

Your program should be well-tested and results readable. Function definitions should be commented indicating what each function does, and the main process should also be clearly commented.

Answer 1

#Displays user information
def whoamI() :
   print("Name : Dytalov")
   courses = ["HTML5 Introduction"];
   print("Courses completed : ")
   for course in courses :
       print("#",course)

# Prints if a number is even or odd
def isEven(number) :
   if number%2 == 0 :
       print("Even")
   else :
       print("Odd")

# Prints all even numbers from 2 through argument
def printEven(number) :
   for i in range(2,number) :
       if i%2 == 0 :
           print(i)

# Prints values of all numbers from argument downthrough 1
def countDown(number) :
   while number >= 1 :
       print (number)
       number = number - 1

# Input a positive number from user
def getNumber() :
   n = int(input("Enter a postive integer : "))
   while n <= 0 :
       n = int(input("Enter a postive integer : "))
   return n

whoamI()

x = "y"
while x == "y" or x == "Y" :
   n = getNumber()
   print("Enter your choice : ")
   print("1 - find out if the number is even or odd")
   print("2 - see printout of all even values up to the number")
   print("3 - see printout of all values from number downto 1")
  
   while True :
       print("Enter 1, 2 or 3")
       choice = int(input())
       if choice == 1:
           isEven(n)
           break
       if choice == 2:
           printEven(n)
           break
       if choice == 3:
           countDown(n)
           break

   x = input("Continue ? y/n")