This program will simulate a small "database" of information about classes at a university.  The information for each class will be stored in a <strong>dictionary</strong>, and all the dictionaries will be stored in a <strong>list</strong>.  With this program, you will be able to:
<ul>
    <li>See a list of classes</li>
    <li>Add a new class to the database</li>
    <li>Fetch more detailed information about a class</li>
</ul>

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# An empty list, when the program first
# starts.  As the user starts to add 
# classes, it will be filled with items --
# those items being dictionaries containing
# class information

classes = []

choice = None
while choice != "0":

    print(
    """
    Create Classes
...

        </pre>
        </div>

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        <pre>
# An empty list, when the program first
# starts.  As the user starts to add 
# classes, it will be filled with items --
# those items being dictionaries containing
# class information

classes = []

choice = None
while choice != "0":

    print(
    """
    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    """
    )
    
    choice = input("Choice: ")
    print()

    # exit
    if choice == "0":
        print("Good-bye.")

    # display classes
    elif choice == "1":
        print("Classes:\n")
        # This part of the program should print
        # each class' number (its index in the 
        # list) and its title
        # YOUR CODE STARTS HERE




        # YOUR CODE ENDS HERE

    # add a class
    elif choice == "2":
        # This part of the program should:
        #   -Create an empty dictionary
        #   -Add keys to the dictionary for 
        #       title
        #       instructor
        #       hours
        #       description
        #    while getting the values through
        #    user input
        #   -Append the newly-filled dictionary
        #    to the list classes
        # YOUR CODE STARTS HERE









        # YOUR CODE ENDS HERE

    # print info about a class
    elif choice == "3":
        # This part of the program should:
        #   -List the numbers and titles
        #    for the classes currently in 
        #    the system.  For this part, you
        #    can reuse the code from choice 
        #    number 1 above.
        #   -Get the number for the class 
        #    from the user, converted to int
        #   -Use the number as the INDEX to 
        #    get the item from the list classes
        #   -That item will be a dictionary. For 
        #    each key in the dictionary, print:
        #       *The key
        #       *Its corresponding value

        # YOUR CODE STARTS HERE









        # YOUR CODE ENDS HERE

    # some unknown choice
    else:
        print("Sorry, but", choice, "isn't a valid choice.")

    print()
  
input("\n\nPress the enter key to exit.")
    </pre>
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Note that because of <strong>user input</strong> and <strong>random values</strong>, the output will look different <strong>each</strong> time you run the program.

<h3>Program output example:</h3>

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    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 1

Classes:


    Create Classes
    
    0 - Quit
...
        </pre>
        </div>

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        <pre>

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 1

Classes:


    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 2

What is the title?: English Literature
Who is the instructor?: Professor John Doe
How many semester hours?: 3
What is the class about?: British literature to the 19th century

Added English Literature

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 2

What is the title?: Introductory Programming
Who is the instructor?: Professor Jane Doe
How many semester hours?: 4
What is the class about?: The basics of programming, taught in Java

Added Introductory Programming

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 2

What is the title?: Microbiology
Who is the instructor?: Professor Jim Doe
How many semester hours?: 3
What is the class about?: The life and chemistry of micro-organisms

Added Microbiology

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 1

Classes:

0 : English Literature
1 : Introductory Programming
2 : Microbiology

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 3

Classes:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number class do you want?: 2

title : Microbiology
description : The life and chemistry of micro-organisms
hours : 3
instructor : Professor Jim Doe

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 3

Classes:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number class do you want?: 0

title : English Literature
description : British literature to the 19th century
hours : 3
instructor : Professor John Doe

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 3

Classes:
0 : English Literature
1 : Introductory Programming
2 : Microbiology

Which number class do you want?: 1

title : Introductory Programming
description : The basics of programming, taught in Java
hours : 4
instructor : Professor Jane Doe

    Create Classes
    
    0 - Quit
    1 - List All Classes
    2 - Add a Class
    3 - Display Class Information
    
Choice: 0

Good-bye.


Press the enter key to exit.

        </pre>
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        </div>
        <strong>In <u>at least 150</u> words, please address the following questions in <span class="code">memo.txt</span>:</strong> <ol><li>How did the process of creating these programs go for you?</li>  <li>What were your main challenges and how did you overcome them?</li>  <li>What did you learn that may be of use as you move along in this class?</li></ol>