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A local restaurant kept a record of the number of customers who visited the restaurant per day during the past year - NSC Information Technology - Question 4 - 2018 - Paper 1
Question 4
A local restaurant kept a record of the number of customers who visited the restaurant per day during the past year. Do the following: - Open the incomplete progra... show full transcript
Worked Solution & Example Answer:A local restaurant kept a record of the number of customers who visited the restaurant per day during the past year - NSC Information Technology - Question 4 - 2018 - Paper 1
Step 1
4.1 - Populate customer array
Answer
To populate the customer array based on the selected month:
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Read the Month Selection: Retrieve the selected month from the combo box and set it to a variable for processing.
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Initialize Counter: Set a counter variable to zero, which will help in counting the number of customers for the selected month.
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Loop Through Days: Utilize a loop to iterate through the days of the selected month to gather customer data. For example, assuming the selected month is January:
- For each day, check the corresponding index in the
arrTempCustomersarray for customer numbers. - Increment the value in
arrCustomersat the appropriate index based on the customer's number.
- For each day, check the corresponding index in the
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Retrieve Customer Data: Copy the number of customers for each day from
arrTempCustomerstoarrCustomers. This involves identifying the position of the day in the month and ensuring accurate copying of customer data. -
Final Output: Display a message indicating that the
arrCustomersarray has been successfully populated, confirming that the operation is complete.
Step 2
4.2 - Display
Answer
To implement the display feature:
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Extract Day of Week: Read the selected day of the week from the combo box and adjust the index accordingly (e.g., add 1 to align with array indexing).
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Fill in Spaces: Prepare an output string that will hold the formatted results for visibility in the user interface.
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Counting the Days: Count the number of days in the selected month using the correct method; this ensures that the app displays relevant customer data only.
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Construct Output: Loop through the
arrCustomersarray to compile customer data by day, adding them to the output string with appropriate formatting, such as including brackets. For instance:- Format the string to represent each day followed by the number of customers enclosed in brackets.
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Display Results: Finally, show the completed output string to the user, ensuring the interface updates correctly to reflect the populated customer data.