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QUESTION 3: PROBLEM-SOLVING PROGRAMMING SCENARIO Information centres, referred to as 'terminals', have been set up at three different points along the routes in the park - NSC Information Technology - Question 3 - 2016 - Paper 1
Question 3
QUESTION 3: PROBLEM-SOLVING PROGRAMMING SCENARIO Information centres, referred to as 'terminals', have been set up at three different points along the routes in th... show full transcript
Worked Solution & Example Answer:QUESTION 3: PROBLEM-SOLVING PROGRAMMING SCENARIO Information centres, referred to as 'terminals', have been set up at three different points along the routes in the park - NSC Information Technology - Question 3 - 2016 - Paper 1
Step 1
Button [3.1] – Activity/Facility codes for all terminals and directions]
Answer
To display the activity/facility codes for all terminals and directions, the program needs to:
- Display Column Headings: Show the directions (North, South, East, West) as the column headers.
- Loop through Rows: Use an outer loop to iterate over each terminal and its number.
- Inner Loop: Use an inner loop to go through the columns for the directions.
- Display Data: For each terminal, extract the relevant data from the two-dimensional array
arrACodesand display it. The output should look organized, ensuring each entry is on a new line. - End the Output Neatly: Make sure to display the lines in the output area in a clear and readable format.
Step 2
Button [3.2] – Activities/Facilities from a selected terminal and direction]
Answer
The steps to extract and display activities from a selected terminal and direction are as follows:
- Display Terminal Number and Direction: First, display the selected terminal number and the chosen direction in the output area.
- Extract Code: Retrieve the activity code from the
arrCodescorresponding to the selected terminal and direction. - Loop through Codes: Iterate through the
arrCodesarray to find the relevant activities by comparing each letter in the code. - Display Activities: Show all activities that correspond to the selected terminal and direction in the output.
Step 3
Button [3.3] – Access routes to selected activity/facility]
Answer
To access routes for the selected activity/facility, follow these steps:
- Extract Index: Get the index of the selected activity/facility from the combo box.
- Initialize Counter: Set a counter to zero to count the number of access routes.
- Display Heading: Show a heading in the output area indicating access routes.
- Outer Loop for Rows: Loop through each entry in the rows of the two-dimensional array, checking for matches with the selected activity code.
- Inner Loop for Columns: For each match, display the corresponding terminal number and direction, incrementing the counter each time a valid route is found.
- Display Total Routes: Display the total number of access routes found.
Step 4
Button [3.4] – Maintenance at a selected activity/facility]
Answer
To handle maintenance information for selected activities/facilities:
- Extract Activity Index: Get the index of the selected activity from the combo box.
- Loop through Rows: Iterate through the rows of the
arrACodesarray. - Check for Activity: Check if the selected activity code exists within the data. If it does, remove the corresponding character from the
arrACodesarray. - Display Maintenance Message: Inform the user with a message indicating the access routes to the selected activity/facility are closed due to maintenance.
- Update Output Area: Finally, refresh the display to show the updated
arrACodesarray, reflecting the changes made.