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The Parking Group has requested your assistance for the implementation of the calculation of cost when vehicles exit a parking area - NSC Information Technology - Question 4 - 2022 - Paper 1
Question 4
The Parking Group has requested your assistance for the implementation of the calculation of cost when vehicles exit a parking area. Do the following: - Open the i... show full transcript
Worked Solution & Example Answer:The Parking Group has requested your assistance for the implementation of the calculation of cost when vehicles exit a parking area - NSC Information Technology - Question 4 - 2022 - Paper 1
Step 1
Button [4.1 - Display]
Answer
To implement the logic for the display button, first, we need to create a loop that runs from 1 to the number of elements in the arrRegNumbers array. This iterates through the registration numbers and their respective entry times.
- Display Heading - Print the table headers
RegNumandTime In. - Loop through elements - For each index
k, displayarrRegNumbers[k]as a string along with the correspondingarrEntryTimes[k]in a neat column format. This will give a clear tabular view of all vehicles that have entered the parking area.
Step 2
Button [4.2 - Exit parking area]
Answer
For the exit button functionality, the following steps must be implemented:
- Extract registration number - Get the selected vehicle's registration number from
cmbQ4. - Extract exit time - Read the exit time entered in
edtQ4. - Validate exit time - Compare the exit time to the entry time in the
arrEntryTimescorresponding to the selected registration number. If the exit time is earlier, display 'Invalid exit time'. - Calculate time spent - Convert both entry and exit times to minutes and calculate the difference to find the total time spent in the parking area.
- Determine tariff - Use the following conditions to determine the applicable tariff:
- If time spent <= 30 minutes, tariff is Free.
- If 31 <= time spent <= 120 minutes, tariff is R50.00 per hour.
- If 120 < time spent <= 240 minutes, tariff is R40.00 per hour.
- If time spent > 240 minutes, tariff is R30.00 per hour.
- Calculate total cost - Compute the total cost using: ext{Cost} = ext{Tariff} * ext{Ceil}igg( rac{ ext{TimeSpent}}{60}igg)
- Output results - Display the registration number, entry time, exit time, time spent in hours and minutes, applicable tariff per hour, and total cost.