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The IT learners are writing programs to assist with the stocktaking process - NSC Information Technology - Question 5 - 2016 - Paper 2
Question 5
The IT learners are writing programs to assist with the stocktaking process. 5.1 A two-dimensional array called arrStock has been used to record the quantities of t... show full transcript
Worked Solution & Example Answer:The IT learners are writing programs to assist with the stocktaking process - NSC Information Technology - Question 5 - 2016 - Paper 2
Step 1
Write pseudocode to calculate the total stock per item and store these values in the array.
Answer
// Initialize total stock array
FOR row FROM 0 TO 3 DO
total[row] ← 0
// Loop through each department
FOR col FROM 0 TO 4 DO
total[row] ← total[row] + arrStock[row][col]
END FOR
// Store total in the last column of arrStock
arrStock[row][4] ← total[row]
END FOR
Step 2
Identify the type of error for each process in the table below.
Answer
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(a) Syntax Error: This error occurs when there is a missing semicolon at the end of an instruction, leading to compilation issues.
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(b) Logical Error: The stock value is calculated incorrectly which signifies logical miscalculations in the program logic.
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(c) Runtime Error: The mismatch in the data types during execution results in this type of error.
Step 3
Name TWO aspects that must be taken into consideration when providing the arguments (actual parameters) in a call statement.
Answer
- The number of arguments (actual parameters) must match the number of formal parameters in the method definition.
- The type of arguments (actual parameters) must match the type of formal parameters expected by the method.
Step 4
Complete the algorithm to read the text file and populate the arrays.
Answer
1. Open the text file StockDetails.txt for reading
2. Counter ← 0
3. Loop until the end of the StockDetails.txt file
Read line from file
// Check if the line mentions a Tablet
IF line contains "Tablet" THEN
Extract room number from the line
Store room number in roomArray[counter]
Extract quantity issued and store in quantityArray[counter]
Increment counter
END IF
4. Close the file
Step 5
Step 6