Filename:    Lab_16_Pseudocode.txt

Purpose:     Practice with control structures

Author:      Ken Busbee; © 2009 Kenneth Leroy Busbee
Date:        Mar 20, 2009, Modified: Apr 10, 2010

Comments:    See the programming hints at the end of the 
             pseudocode.

Licensed by: Kenneth Leroy Busbee under a 
             Creative Commons Attribution License (CC-BY 3.0)
             http://creativecommons.org/licenses/by/3.0/
******************************************************

Function main
  Pass In: nothing
  Do
    Call: clear_m
    Display "Welcome to the Fun Program."
    Display "Select from the menu."
    Display a blank line.
    Display "A gets Counting Loop."
    Display "B gets Impossible."
    Display "C gets Missing Item."
    Display "D gets Odd or Even."
    Display "E gets Poem."
    Display a blank line.
    Display "Q quits the program."
    Display a blank line.
    Display "Enter the letter of your choice.".
    Display "Then hit the enter key.".
    Display a blank line.
    Display "Your choice: --> ".
    Get the response for user_choice from the keyboard
    Case of user_choice
      'A'  Call: counting_loop
      'B'  Call: impossible
      'C'  Call: missing_item
      'D'  Call: odd_even
      'E'  Call: poem
    Endcase
  While user_choice not equal to 'Q'
  Pass Out: zero to the OS
Endfunction

********************

Function counting_loop
  Pass In: nothing
  For x starts at 0, x < 5, increment x
    Display "Are we having fun?"
  Endfor
  Call: pause_m
  Pass Out: nothing
Endfuction

********************

Function impossible
  Pass In: nothing
  Display "The repeat until loop is impossible in C++."
  Call: pause_m
  Pass Out: nothing
Endfuction

********************

Function missing_item
  Pass In: nothing
  Display "This program is missing only the while loop."
  Call: pause_m
  Pass Out: nothing
Endfuction

********************

Function odd_even
  Pass In: nothing
    Display a message asking user for an integer value
    Get the user_integer from the keyboard
    If user_integer modulus 2
      Display "Your number was odd."
    Else
      Display "Your number was even."
    Endif
  Call: pause_m
  Pass Out: nothing
Endfuction

********************

Function poem
  Pass In: nothing
  Display a 4 line poem
  Call: pause_m
  Pass Out: nothing
Endfuction

********************

clear_m
and
pause_m
are functions defined in the udst_monitor.h

******************************************************

Potential Variables

Data Type    Identifier Name
*********    ***************
character    user_choice
integer      user_integer
integer      x

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Programming Hints

1. Don't try writing the program all at once.  You can
   eat an elephant but only one bite at a time. Suggestion:

   a. Complete the do while loop but dont' do the case (switch).
      Compile and test it.
   b. Add the case with only one item (item A) and build the 
      function for item A.  
      compile and test it. 
   c. Build each additional menu item one at a time. 
      Compile and test it before doing the next menu item.

2. Review as needed:

   a. Chapter 6 on Program Control functions
   b. Chapter 7 on User Defined Specific Task functions
   c. The chapters within the Structrued Progrramming Group,
      chapters 11 to 15, as needed for each control structure
      that you are using.

3. Pay attention to braces. They are always in pairs. One  
   starting and one stoping. Review the module:
   "Documentation and Making Source Code Readable" that is
   in Chapter 6.  
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End of file