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SECTION C QUESTION 3: OBJECT-ORIENTATED PROGRAMMING Information on some of the popular hiking trails in South Africa are available in the format of text files - NSC Information Technology - Question 3 - 2021 - Paper 1
Question 3
SECTION C QUESTION 3: OBJECT-ORIENTATED PROGRAMMING Information on some of the popular hiking trails in South Africa are available in the format of text files. The ... show full transcript
Worked Solution & Example Answer:SECTION C QUESTION 3: OBJECT-ORIENTATED PROGRAMMING Information on some of the popular hiking trails in South Africa are available in the format of text files - NSC Information Technology - Question 3 - 2021 - Paper 1
Step 1
Button [3.2.2 - Display hiking trail details]
Answer
To implement the toString method for displaying the hiking trail details, you should follow these steps:
- Define the
toStringmethod in theHikingTrailclass that formats the necessary information as a string. - Ensure that it includes:
trailNameterrainTypedistanceandnumber of days- Cost per person
- For example, the output if the Amatola Hiking Trail is selected should look like:
Hiking trail information: Amatola Hiking Trail: Rocky 100 km long in 6 days Cost per person: R1,500.00.
Step 2
Button [3.2.3 - Display cost]
Answer
To implement the cost calculation based on the number of hikers, adhere to the following steps:
- Use an input box to request the number of hikers in the group. You may use:
var groupSize: Integer; begin groupSize := InputBox('Enter number of people in group:', 'Number of Hikers', ''); - Call the
calculateCostmethod using the formula:cost := objHikingTrail.calculateCost(groupSize); - Display the calculated cost using a message box:
Ensure that the cost correctly reflects the total for the number of hikers.ShowMessage('Cost of the group is: R' + FloatToStr(cost));