File Processing and Exception Handling: past paper questions

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• Question 2May/June 2026, paper 41Structured28 marks

  A program stores data about toys that are made from bricks.

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• Question 10Oct/Nov 2025, paper 31Structured3 marks

  Explain what is meant by exception handling.

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• Question 1Oct/Nov 2024, paper 41Structured22 marks

  A program sorts string data using different sorting methods. The text file Data.txt stores string data items. Each data item is on a new line in the text file.

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• Question 8Oct/Nov 2023, paper 31Structured8 marks

  A pseudocode algorithm finds a customer account record in a random file and outputs it. The records are stored using the user-defined data type TAccount.

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• Question 2May/June 2026, paper 42Structured30 marks

  A program stores data about avatars in a program using Object-Oriented Programming (OOP). An avatar is a character that a user can control in a game. The class Avatar stores the data about avatars.

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• Question 10Oct/Nov 2025, paper 32Structured4 marks

  An exception is an error that may cause a program to halt unexpectedly. Describe how program termination due to an exception can be avoided.

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• Question 3Oct/Nov 2024, paper 42Structured17 marks

  The text file HighScoreTable.txt stores the top seven player scores for a game. The data in the file is stored in the order: Player ID Game level Score Each item of data is stored on a new line.

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• Question 12Oct/Nov 2023, paper 32Structured9 marks

  Describe, with an example, what is meant by an exception.

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• Question 2May/June 2026, paper 43Structured29 marks

  A prototype for a game is being developed using Object-Oriented Programming (OOP). The game has a set of characters that have data stored about their characteristics, for example if the character can fly or not fly.

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• Question 12Oct/Nov 2025, paper 33Structured5 marks

  An exception can occur when running a program. Explain what is meant by an exception.

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• Question 3Oct/Nov 2025, paper 41Structured25 marks

  A program stores records in the 2D array HashTable. Each record is stored at a specific index of the array that is calculated using a hashing algorithm with the record’s key field. The array has 100 × 10 elements.

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• Question 2May/June 2024, paper 41Structured31 marks

  A computer program will store data about trees. The user can enter their requirements for a tree and a suitable tree will be selected. The program is written using object-oriented programming.

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• Question 2Oct/Nov 2023, paper 41Structured29 marks

  A linear queue is implemented using the 1D array, Queue. The index of the first element in the array is 0.

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• Question 3Oct/Nov 2025, paper 42Structured21 marks

  A program stores integers in ascending order in an ordered binary tree. The tree is implemented as a 2D array. Each node is stored with three values: • a pointer to the left node • the data • a pointer to the right node.

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• Question 1Oct/Nov 2023, paper 42Structured27 marks

  A program stores lower-case letters in two stacks. One stack stores vowels (a, e, i, o, u) and one stack stores consonants (letters that are not vowels). Each stack is implemented as a 1D array.

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• Question 2Oct/Nov 2025, paper 43Structured24 marks

  A program reads string data from a text file into a linear queue and then compresses the data. The queue is created using the global 1D array Queue. The queue can store up to 100 elements.

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• Question 12May/June 2025, paper 31Structured5 marks

  The pseudocode algorithm checks whether a location in a stock file StockList.dat is empty or not. The location is given by the user. If the location is empty, a suitable message is displayed, otherwise the item stored at that location is displayed.

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• Question 10May/June 2023, paper 31Structured5 marks

  The pseudocode algorithm shown copies an active accounts text file ActiveFile.txt to an archive accounts text file ArchiveFile.txt, one line at a time.

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• Question 13May/June 2025, paper 32Structured5 marks

  The pseudocode algorithm below uses random file access to copy 50 records from a live file CurrentResults.dat to a stored file StoredResults.dat one record at a time. It uses the user-defined type StudentResult.

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• Question 6May/June 2023, paper 32Structured9 marks

  Write pseudocode statements to declare the composite data type, TAppointments, to hold data about patients for a dental clinic.

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• Question 11May/June 2025, paper 33Structured5 marks

  The pseudocode algorithm below allows a user to input a new stock item. The random file is searched for the next empty location in the file and the new item is inserted there. A suitable message is displayed if the file is full.

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• Question 3May/June 2023, paper 41Structured25 marks

  A program implements two stacks using 1D arrays. One stack stores the names of colours. One stack stores the names of animals.

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• Question 2May/June 2025, paper 41Structured25 marks

  A program reads data from a text file, splits the data depending on its content and stores the separated data into different files. The text file TheData.txt contains 72 lines of data. Each line of data has an integer number and a string colour that are separated by a comma.

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• Question 3May/June 2023, paper 42Structured33 marks

  A company needs a computer program to store data about its employees. Part of the program is being written using object‑oriented programming. The class Employee stores data about the employees.

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• Question 1May/June 2025, paper 42Structured27 marks

  A program reads data from a text file and stores it in a stack. The stack Stack is stored as a 1D array of up to 20 elements. The pointer TopOfStack stores the index of the last element stored in the stack.

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• Question 1May/June 2025, paper 43Structured26 marks

  A program reads data from a text file and stores it in a queue. The linear queue Queue is stored as a 1D array of up to 50 elements.

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