A handy reference for students.

At the beginning of the academic year students are issued with a timetable to show which lessons they have each week. In this program a school week is five days, each with six lessons, but this could easily be changed.

It is helpful for students to create their own copy of their timetable as a handy reference. This program allows the user to create, save, load and output a timetable.

Assessment

These objectives get progressively harder. Attempt as much of the program as you can in the order presented below. Remember to use a comment to describe a subpprogram, selection or iteration.

Success Criteria

Setting up and visualising the table

• In the main program declare a 2D array called timetable of six lessons each of five days, with all elements initialised to be “===”.

1 mark

You can visualise the initial timetable like this. Each row is a day 1-5 and each column is a lesson 1-6:

User menu

• Define a subprogram called menu that takes the array timetable as a parameter.
  • Output five choices for the user: 1. output timetable, 2. Edit a lesson, 3. Load, 4. Save, 5. Close.
  • Ask the user to input a choice from 1-5.
  • Repeat the step above until the user makes a valid input.
  • Use a loop to repeat all the steps in this subprogram until the user chooses “5”.
• Add a call to menu to the main program.

6 marks

Edit a lesson

• Define a subprogram called edit_lesson that takes the array timetable array as a parameter.
  • Prompt the user to enter the day and lesson they want to edit.
  • Prompt the user to enter the name of the subject.
  • Store the data in the timetable array.
  • Output that the lesson has been updated.
• Add a call to the edit_lesson subprogram in the menu subprogram if the user chose option 2.

7 marks

Formatting the subject name

• Define a subprogram called subject_code that takes the name of a subject as a parameter.
  • The subject is changed to uppercase.
  • The subject should be three characters, padded with spaces if it is less than three characters. E.g. Maths is Mat. PE is PE followed by one space.
  • Return the formatted subject.
• Change the subprogram edit_lesson so that the subject code is written to the array, not the input the user entered.

5 marks

Loading a timetable from a file

• Define a subprogram called load that takes the array timetable as a parameter.
  • Load the timetable from a CSV file called timetable.txt and store the data in the timetable array.
• Add a call to the load subprogram in the menu subprogram if the user chose option 3.

3 marks

Saving the timetable to a file

• Define a subprogram called save that takes the array timetable as a parameter.
  • Save the timetable array to a CSV file called timetable.txt
  • The format of the CSV file must be compatible with the load subprogram so that the timetable can be loaded and saved.
• Add a call to the save subprogram in the menu subprogram if the user chose option 4.

4 marks

Displaying the timetable

• Define a subprogram called output that takes the array timetable as a parameter.
  • Output the timetable in the format shown below. Note the row and column headings plus the lesson separators.
• Add a call to the output subprogram in the menu subprogram if the user chose option 1.

3 marks

The output should now look like this:

1. Output timetable
2. Edit a lesson
3. Load
4. Save
5. Close
Enter choice:
1

 |-1-||-2-||-3-||-4-||-5-||-6-|
1|===||===||===||===||===||===|
2|===||===||===||===||===||===|
3|===||===||===||===||===||===|
4|===||===||===||===||===||===|
5|===||===||===||===||===||===|

1. Output timetable
2. Edit a lesson
3. Load
4. Save
5. Close
Enter choice:
2

Which day do you want to edit? 1-5:
3
Which lesson do you want to edit? 1-6:
5
Enter the subject:
ENG
Lesson updated.

1. Output timetable
2. Edit a lesson
3. Load
4. Save
5. Close
Enter choice:
1

 |-1-||-2-||-3-||-4-||-5-||-6-|
1|===||===||===||===||===||===|
2|===||===||===||===||===||===|
3|===||===||===||===||ENG||===|
4|===||===||===||===||===||===|
5|===||===||===||===||===||===|

1. Output timetable
2. Edit a lesson
3. Load
4. Save
5. Close
Enter choice:
5

Good programming practices

• The subprograms and main program sections are signified with comments.
• The subprograms have a comment to describe their purpose.

2 marks

Maximum mark: 31

If you score less than 25 you need more practice at levels 1-9 before you continue to the next level.