Week 4 Quiz

Which Java class provides methods for reading and writing to files?

• File

• FileReader

• FileWriter

• All of the above

What is the primary purpose of using file handling in a task management application?

• To store user data temporarily in memory.

• To ensure data is not lost when the application closes.

• To make the application run faster.

• To enhance the user interface.

Which of the following is NOT a common file format used for storing data in a Java application?

• .txt (plain text)

• .xml (Extensible Markup Language)

• .exe (executable)

• .json (JavaScript Object Notation)

What is the significance of project structuring in a file handling implementation?

• It makes the code more difficult to understand.

• It has no significant impact on the application.

• It improves code organization, maintainability, and scalability.

• It slows down the development process.

Which Java keyword is used to handle potential exceptions during file operations?

• try

• catch

• finally

• all of the above

What is the purpose of the finally block within a try-catch block?

• To execute code regardless of whether an exception occurred.

• To handle specific types of exceptions.

• To prevent exceptions from occurring.

• To re-throw an exception.

How can you ensure data integrity when saving tasks to a file?

• By using a reliable file system.

• By implementing data validation and error handling.

• By saving data in a single, large file.

• By not saving any sensitive information.

What is the benefit of loading tasks from a file at application startup?

• It allows users to resume their work from where they left off.

• It speeds up the initial loading time of the application.

• It prevents users from saving their work.

• It makes the application more complex.

How can you improve the efficiency of file I/O operations in your application?

• By minimizing the number of file reads and writes.

• By using buffering techniques.

• By optimizing file paths.

• All of the above

What is the importance of testing file handling functionality thoroughly?

• To ensure data is saved and loaded correctly.

• To identify and fix potential bugs early in the development process.

• To improve the user experience.

• All of the above