DEVRY CIS 115 LOGIC AND DESIGN
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Many of you may be asking the question, “What is Devry CIS 115 Logic And Design?” The simple answer is that logic and design are the steps that a software, game, or web developer goes through in determining what his or her application is supposed to do and how it can be done. Analysis and design are the first steps in any new or existing software development project and they are a lot of fun!
Using an analogy, think about building a new house. The first thing you do is decide how many rooms you want, how big the house should be, and the basic layout of the floor plan—this is the analysis activity in which you determine what needs to be done. Then, an architect takes the basic floor plan and creates a detailed design or blueprint of the house, which shows the exact measurements—this is the design, or how it will be done. Establishing what you need to do and then determining how you are going to do it must be correctly completed before you start building the house. This is as true for building a house as it is for building a software application, game, or website. Therefore, before you learn how to do any programming, you need to learn how to analyze the requirements and create the logic and design that are used to construct the application. Just like when you build a house, you cannot build a program without a blueprint!
Although we will focus on a specific language (Python), the concepts learned in this course will be applied in every programming language that you will ever learn. Once you master the Course Objectives, you will be able to create efficient designs that are easier to build and test. You will also find it much easier to learn different programming languages because you will be familiar with analyzing requirements and creating designs that use standards and techniques used in every programming language.
Some of the topics in this course might be familiar. For example, we will look at the order of math operations, rules that you would have learned in a previous math class. You may have seen logical operators (And, Or, Not) in a previous class. However, unless you have already studied programming, many of the concepts presented in this class will not be familiar and the thought process that you use will be a little different as well. The key is to have fun with the material, stay organized, focus on the weekly activities, and ask questions whenever you have them. If you want to be a software, game, or web developer, this is the place to start. Although the course will be challenging, if you like solving puzzles, it can also be a lot of fun.
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Devry CIS 115 Week 1 Software Development and Design Tools
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Title of Lab: Building a Registration Form and Pay Calculator in Python
Summary – Part 1
Create a program that allows a student to complete a registration form and displays a completion message that includes the user’s full name and a temporary password.
Summary – Part 2
Create a program that calculates a user’s weekly gross and take-home pay.
Deliverables
- 2 source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
Part 1 – Registration Form
Sample Output:
First Name: Eric
Last Name: Idle
Birth Year: 1934
Welcome Eric Idle!
Your Registration is complete.
Your temporary password is: Eric*1934
Specifications:
- The user’s full name consists of the user’s first name, a space, and the user’s last name.
- The temporary password consists of the user’s first name, an asterisk (*), and the user’s birth year.
- Assume the user will enter valid data.
Devry CIS 115 Week 2 Selection Control Structures
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Title of Lab: Even or Odd and Grade Checker in Python
Summary – Part 1
Create a program that checks whether a number is even or odd.
Summary – Part 2
Create a program that checks one’s letter grade.
Deliverables
- 2 source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
Part 1 – Even or Odd
Sample Output:
Even or Odd
Enter an integer: 20
This is an even number.
Specifications:
- Use the selection structure.
- Assume that the user will enter a valid integer
Make sure to use the following criteria:
- 100 – 90: A
- 89 – 80: B
- 79 – 70: C
- 69 – 60: D
- 59 and below: F
Sample Output:
- Grade Checker
- Enter your grade: 88
- You earned a B
- Assume the user will enter valid data.
- Selection structure needs to be used.
Devry CIS 115 Week 3 Repetition Control Structures
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Title of Lab: Change Calculator and Shipping Calculator in Python
Summary – Part 1
Create a program that calculates the coins needed to make change for the specified number of cents.
Summary – Part 2
Create a program that calculates the total cost of an order including shipping.
Deliverables
- 2 source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
Part 1 – Change Calculator
Sample Output:
Change Calculator
Enter the number of cents (0-99): 99
Quarters: 3
Dimes: 2
Nickels: 0
Pennies: 4
Continue? (y/n): y
Enter the number of cents (0-99): 55
Quarters: 2
Dimes: 0
Nickels: 1
Pennies: 0
Continue? (y/n): n
Bye!
Specifications:
- The program should display the minimum number of quarters, dimes, nickels, and pennies that one needs to make up the specified number of cents.
- Assume that the user will enter a valid integer for the number of cents.
- The program should continue only if the user enters “y” or “Y” to continue.
Part 2 – Shipping Calculator
Sample Output:
===============================================================
Shipping Calculator
===============================================================
Cost of items ordered: 49.99
Shipping cost: 7.95
Total cost: 57.94
Continue? (y/n): y
===============================================================
Cost of items ordered: -65.50
You must enter a positive number. Please try again.
Cost of items ordered: 65.50
Shipping cost: 9.95
Total cost: 75.45
Continue? (y/n): n
===============================================================
Bye!
Specifications:
Use the following table to calculate shipping cost:
Cost of Items Shipping Cost
< $30.00 $5.95
$30.00 – $49.99 $7.95
$50.00 – $74.99 $9.95
> $75.00 Free
If the user enters a number that’s less than zero, display an error message and give the user a chance to enter the number again.
Devry CIS 115 Week 4 Complex and Nested Statements and Debugging
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Title of Lab: Multiplication Table in Python
Summary
This week’s lab is to create a simple multiplication table using nested loops and if statements.
Prompt the user for the size of the multiplication table (from 2×2 to 10×10). Use a validation loop to display a warning if the number is less than 2 or greater than 10 and prompt the user to enter the data again until they enter a valid number.
Put a # after any even number in your table (odd numbers will have just a space/nothing after them).
Deliverables
- 2 source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
Sample Output:
The output should be something similar to the following.
Hints:
- The outer loop will start each new row.
- The inner loop will control the display of each column in the row.
- Note that to keep the numbers right-aligned, there are different amounts of space before single-digit numbers (those less than 10), double-digit numbers (those between 10-99), and triple-digit numbers (100).
- The row labels can be added to your inner loop (note that there are different amounts of space required after the number in the row labels.
- The column labels should use a separate loop(s) that run before the main outer loop.
- You can continue printing on the same line using end=”” in your print statement. This will come in handy if you want to print several things on one line inside a loop. For example, assuming the value of name is Ada, the following will print “Hello Ada” on one line:
print(“hello “, end=””)
print(name, end=””)
Tips:
- Start early!
- Do the basic table first without worrying about the spacing or lining things up, and don’t include row or column headings (add those later).
- Once you get the numbers in the correct position, think about adding the proper amount of space before each number to line things up.
- Once the columns line up, add the #/space for even/odd numbers.
- Once the basic table is working, then add the row and column headings, and finally the main title.
- Test as you go!
CIS 115 Week 4: Course Project
The Week 4 portion of your Course Project is due this week. Please refer to the Course Project Overview in the Introduction and Resources module for full details. Use this report (Links to an external site.) to complete this portion of the project.
Guess the number!
You will create a program that will ask the user to guess a number between 1 and 10. The pseudocode is below. Be sure to import random at the beginning of your code and use a comment block explaining what your program does
#Guess the number week 4 #Name: #Date: #Random number, loop while true #ask user for number. #if number is too high or too low, tell user, if they guessed it break out of loop Display "Welcome to my Guess the number program!" random mynumber while True Display "Guess a number between 1 and 10" Get guess if (guess<mynumber) Display "Too low" else if (guess>mynumber) Display "Too high" else if (guess==mynumber) Display "You guessed it!"
When you run your program the result should be something like this:
Welcome to my Guess the number program! Please guess a number between 1 and 10: 5 Too high Please guess a number between 1 and 10: 4 Too high Please guess a number between 1 and 10: 3 Too high Please guess a number between 1 and 10: 2 You guessed it!
Devry CIS 115 Week 5 ArraysLists
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Title of Lab: Race Time Sorting in Python
Summary
Store the times into arrays called Chevy[ ] and Ford[ ]. Then list the winner of each pair, giving the number of seconds the winner won by. At the end declare which team won based on which team had the most wins.
Deliverables
- A source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
There are eight cars in each team called Chevy and Ford. One car from each team races its opponent on the drag strip. Read in the racing times for the eight Chevy cars and then read in the times for the eight Ford cars.
Sample Match:
Specifications:
- Accept the racing times for each of the Chevy cars into the array Chevy[ ].
- Accept the racing times for each of the Ford cars into the array Ford[ ].
- Then declare the wining car for each race, giving the winning time in seconds.
- If the times are identical, then declare the race was a tie.
- Finally, declare which team won the match, assuming a tie is possible.
CIS 115 Week 5: Course Project
The Week 5 portion of your Course Project is due this week. Please refer to the Course Project Overview in the Introduction and Resources module for full details. Use this report (Links to an external site.) to complete this portion of the project.
Guess the number!
You will add to the program you created last week. This week you will add input validation and a count to show how many guesses the user took before getting the correct number. The pseudocode is below. Be sure to import random at the beginning of your code and use a comment block explaining what your program does
#Guess the number week 5
#Name:
#Date:
#Random number, loop while true
#ask user for number. Check to see if the value is a number between 1 and 10
#if number is too high or too low, tell user, if they guessed it break out of loop
Display "Welcome to my Guess the number program!"
random mynumber
count=1
while True
try
Display "Guess a number between 1 and 10"
Get guess
while guess<1 or guess>10
Display "Guess a number between 1 and 10"
Get guess
except
Display "numbers only"
continue
if (guess<mynumber) Display "Too low" count=count+1 else if (guess>mynumber)
Display "Too high"
count=count+1
else if (guess==mynumber)
Display "You guessed it in "+ count + " attempts"When you run your program the result should be something like this:
Welcome to my Guess the number program! Please guess a number between 1 and 10: a Numbers only! Please guess a number between 1 and 10: -3 Please guess a number between 1 and 10: 4 Too low Please guess a number between 1 and 10: 5 Too low Please guess a number between 1 and 10: 6 You guessed it! It took you 3 attempts
Be sure to submit your assignment.
Devry CIS 115 Week 6 Modular Design
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Title of Lab: Shopping List in Python
Summary
Create a program that will allow a user to add, list, and delete items from a shopping list.
Deliverables
- A source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
The program should be modular. For example, you will want to have an add_item(shopping_list) function, a delete_item(shopping_list) function, a display_list(shopping_list) function, a display_menu() function, and a main().
Sample Match:
Specifications:
- The program should start with 2 items in the shopping list.
- Don’t forget to include at the end of the program the code:
o if __name__ == “__main__”:
main(); - Use this code for the delete_item(shopping_list) function:
CIS 115 Week 6: Course Project
The Week 6 portion of your Course Project is due this week. Please refer to the Course Project Overview in the Introduction and Resources module for full details. Use this report (Links to an external site.) to complete this portion of the project.
Guess the number!
You will add to the program you created last week. This week you will add quite a bit of code to your project. You will add an option for the computer to guess as well as the user to guess a number. In addition, you will add a menu system. Be sure to import random at the beginning of your code and use a comment block explaining what your program does.
#Guess the number week 6
#Name:
#Date:
#Menu system displays - ask user if they want to guess a number, have computer guess a number, or exit
#Random number, loop while true
#ask user for number. Check to see if the value is a number between 1 and 10
#if number is too high or too low, tell user, if they guessed it break out of loop
#ask user to enter a number, computer randomly guesses
Display "Welcome to my Guess the number program!"
while true
Display "1. You guess the number"
Display "2. You type a number and see if the computer can guess it"
Display "3. Exit"
Get option
if(option ==1)
random mynumber
count=1
while True
try
Display "Guess a number between 1 and 10"
Get guess
while guess<1 or guess>10
Display "Guess a number between 1 and 10"
Get guess
except
Display "numbers only"
continue
if (guess<mynumber) Display "Too low" count=count+1 else if (guess>mynumber)
Display "Too high"
count=count+1
else if (guess==mynumber)
Display "You guessed it in "+ count + " attempts"
if(option ==2)
Get number from user
count=1
while True
Get randomval from computer
if (number<randomval) Display "Too low" count=count+1 else if (number>randomval)
Display "Too high"
count=count+1
else if (number==randomval)
Display "The computer guessed it in "+ count + " attempts. The number was "+randomval
else
breakWhen you run your program the result should be something like this:
Welcome to my Guess the number program! You guess the number You type a number and see if the computer can guess it Exit What is your choice: 1 Please guess a number between 1 and 10: 8 Too high Please guess a number between 1 and 10: 7 You guessed it! It took you 2 attempts You guess the number You type a number and see if the computer can guess it Exit What is your choice: 2 Please enter a number between 1 and 10 for the computer to guess: 5 The computer guessed 7 which is too high The computer guessed 2 which is too low The computer guessed 9 which is too high The computer guessed 8 which is too high The computer guessed 8 which is too high The computer guessed 1 which is too low The computer guessed 3 which is too low The computer guessed 4 which is too low The computer guessed 2 which is too low The computer guessed 8 which is too high The computer guessed 3 which is too low The computer guessed 1 which is too low The computer guessed 4 which is too low The computer guessed 7 which is too high The computer guessed 1 which is too low The computer guessed 7 which is too high The computer guessed 1 which is too low The computer guessed 4 which is too low The computer guessed 4 which is too low The computer guessed it! It took 20 attempts You guess the number You type a number and see if the computer can guess it Exit What is your choice: 3 Thank you for playing the guess the number game!
Be sure to submit your assignment.
Devry CIS 115 Week 7 GUIs and Networking in Python
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Title of Lab: Networking with Python
Deliverables
- A source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps 1: Finding Your IP Address
- We will create a python program to do a port scan.
- To do this you need to find the IP address of your computer.
- Open a Command Prompt (Start button -> Windows System-> Command Prompt).
- At the command prompt type ipconfig –all
In the above example, the IP address is IPv4 192.168.15.149
Lab Steps 2: Running Your Code
- After you have set up your router we will create a python program to do a port scan.
- Open Idle create a new file. Enter the following python code to create a port scanner.
- NOTE – do not run the port scanner on any site except your router and your own machine.
Run the above code and enter the IP address of the machine (note the machine above is 192.168.8.113). This will take several minutes – even up to 10 minutes so please be patient! You may also try entering in the IP address of your router (shown below)
CIS115 Week 7 Lab GUI Overview
Title of Lab: Creating a GUI in Python
Summary
This week’s lab is to create a GUI in python and use the tkinter module Use text boxes to retrieve the speed and time traveled (in minutes) from the user.
From this calculate the distance traveled: distance = rate * time
Deliverables
- A source code Python file.
- A Word document containing both source code and the screen print of the program outputs.
Lab Steps
Sample Output:
The output should be something similar to the following.
Hints:
- The following code below is an implementation of a GUI to solve for miles per gallon. Use the code from the example below calculating miles per gallon, and modify it to display the distance traveled.
- Instead of asking the user for miles driven and gas. You will need to ask for Time driving and Speed. You will also need to modify the formula.
import tkinter as tk
from tkinter import ttk
def click_calculateButton():
miles = float( milesText.get() ) # get miles driven from the miles textfield
gas = float( gasText.get() ) # get gas used from the gas textfield
mpg = miles / gas # do the math!
mpgText.set( round(mpg,1) ) # display the output
def command_exitButton():
root.destroy()
# create root window
root = tk.Tk()
root.title("MPG Calculator")
root.geometry("280x150") # size of window
# create frame and add it to the root window
frame = ttk.Frame(root, padding="10 10 10 10")
frame.pack(fill=tk.BOTH, expand=True)
# create labels and textfields
ttk.Label(frame, text="Miles Driven:").grid(column=0, row=0, padx=5, pady=5, sticky=tk.E) # display label in grid
milesText = tk.StringVar()
ttk.Entry(frame, width=25, textvariable=milesText).grid(column=1, row=0)
ttk.Label(frame, text="Gas Used:").grid(column=0, row=1, padx=5, pady=5, sticky=tk.E)
gasText = tk.StringVar()
ttk.Entry(frame, width=25, textvariable=gasText).grid(column=1, row=1)
# create a button and add it to the window
ttk.Button(frame, text="Calculate", command=click_calculateButton).grid(column=0, row=2, padx=5, pady=5, sticky=tk.E)
ttk.Button(frame, text="Exit", command=command_exitButton).grid(column=1, row=2, padx=5, pady=5, sticky=tk.W)
ttk.Label(frame, text="MPG:").grid(column=0, row=3, padx=5, pady=5, sticky=tk.E)
mpgText = tk.StringVar()
mpgEntry = ttk.Entry(frame, width=25, textvariable=mpgText, state="readonly").grid(column=1, row=3) # notice readonly!
CIS115 Week 7: Course Project
The Week 7 portion of your Course Project is due this week. Please refer to the Course Project Overview in the Introduction and Resources module for full details. Use this report (Links to an external site.) to complete this portion of the project.
Guess the number!
You will add to the program you created last week. This week you will add a list to keep track of all the numbers guessed and modularize your code. Be sure to import random at the beginning of your code and use a comment block explaining what your program does.
#Guess the number week 7
#Name:
#Date:
#Menu system displays - ask user if they want to guess a number, have computer guess a number, or exit
#Random number, loop while true
#ask user for number. Check to see if the value is a number between 1 and 10
#if number is too high or too low, tell user, if they guessed it break out of loop
#ask user to enter a number, computer randomly guesses
display_menu() module
Display "1. You guess the number"
Display "2. You type a number and see if the computer can guess it"
Display "3. Exit"
main() module
Display "Welcome to my Guess the number program!"
while true
display_menu()
Get input
if(option==1)
user_guess()
elif(option==2)
computer_guess()
else
break
user_guess() module
random mynumber
count=1
userGuesses=[]
while True
try
Display "Guess a number between 1 and 10"
Get guess
while guess<1 or guess>10
Display "Guess a number between 1 and 10"
Get guess
except
Display "numbers only"
continue
userGuesses.append(guess)
if (guess<mynumber) Display "Too low" count=count+1 else if (guess>mynumber)
Display "Too high"
count=count+1
else if (guess==mynumber)
Display "You guessed it in "+ count + " attempts"
Display "you picked the following numbers: " +userGuesses
computer_guess() module
Get number from user
count=1
computerGuesses=[]
while True
Get randomval from computer
computerGuesses.append(randomval)
if (number<randomval) Display "Too low" count=count+1 else if (number>randomval)
Display "Too high"
count=count+1
else if (number==randomval)
Display "The computer guessed it in "+ count + " attempts. The number was "+randomval
Display "The computer guessed the following numbers "+computerGuesses
else
breakWhen you run your program the result should be something like this:
Welcome to my Guess the number program! You guess the number You type a number and see if the computer can guess it Exit What is your choice: 1 Please guess a number between 1 and 10: 5 Too high Please guess a number between 1 and 10: 4 Too high Please guess a number between 1 and 10: 3 Too high Please guess a number between 1 and 10: 2 Too high Please guess a number between 1 and 10: 1 You guessed it! It took you 5 attempts You picked the following numbers: [5, 4, 3, 2, 1] You guess the number You type a number and see if the computer can guess it Exit What is your choice: 2 Please enter a number between 1 and 10 for the computer to guess: 5 The computer guessed 8 which is too high The computer guessed 7 which is too high The computer guessed 4 which is too low The computer guessed 7 which is too high The computer guessed 4 which is too low The computer guessed 7 which is too high The computer guessed 2 which is too low The computer guessed 1 which is too low The computer guessed 7 which is too high The computer guessed 6 which is too high The computer guessed 3 which is too low The computer guessed it! It took 12 attempts The computer guessed the following numbers: [8, 7, 4, 7, 4, 7, 2, 1, 7, 6, 3, 5] You guess the number You type a number and see if the computer can guess it Exit What is your choice: 3 Thank you for playing the guess the number game!
Be sure to submit your assignment.
Devry CIS 115 Week 8 Final Project
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CIS115 Week 8 Overview
This week we will create a powerpoint presentation illustrating your Guess the Number game course project. You will create a narrated powerpoint presentation. A video explanation on how to create a narrated powerpoint is here (Links to an external site.). In addition, add one new feature to your Guess the number game. Feel free to add any new feature. Some ideas include:
- Smarter computer guessing (if it is too high, the computer will decrease its guess by 1 or too low increase its guess by 1)
- A limited number of guesses (for example – only 5 guesses)
- Asking the user for his/her name and greeting the user by name
- A 2 player option where one person enters a number and the other person tries to guess it
- A GUI (watching the video for the powerpoint narration, the video author explains how to create a GUI in python
Submit your narrated powerpoint and final .py code with screenshot
