Study Notes
File handling in programming involves storing data in files for later use or sharing with other computers. It includes reading from and writing to text files using specific commands.
- File — a collection of data stored on a computer that can be used by programs Example: A video game save file that updates with your progress.
- Read — accessing and retrieving data from a file Example: Using a command to open a file and display its contents.
- Write — adding or modifying data in a file Example: Inputting a line of text and saving it to a file.
- File Name — the name given to a file, often with a path, to identify it Example: "Story.txt" is a file name used in code.
Exam Tips
Key Definitions to Remember
- File: A collection of data stored on a computer.
- Read: Accessing data from a file.
- Write: Adding data to a file.
- File Name: The identifier for a file, including its path.
Common Confusions
- Confusing reading from a file with writing to a file.
- Forgetting to close a file after operations are done.
Typical Exam Questions
- What is a file in computer programming? A file is a collection of data stored on a computer that can be accessed by programs.
- How do you read data from a file in a program? Use commands to open the file, read its contents, and then close it.
- How do you write data to a file in a program? Open the file for writing, input the data, write it to the file, and close the file.
What Examiners Usually Test
- Understanding of reading and writing operations in file handling.
- Ability to identify and use file names and paths correctly.