13.4.3 - File Class
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What method do you use to check if a file exists?
💡 Hint: Think about how you would confirm presence.
How would you create a new file named 'test.txt'?
💡 Hint: Consider the sequence of creating a file.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the exists() method do?
💡 Hint: Reflect on the importance of confirming a file's presence.
True or False: The length() method returns the last modified date of the file.
💡 Hint: Consider what 'length' implies in context.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a Java program that checks if a specified file exists and deletes it. If it does not exist, print an appropriate message.
💡 Hint: Remember to handle potential IOException for the delete operation.
Create a script that logs the sizes of multiple files in a directory and outputs them to a text file.
💡 Hint: Utilize FileWriter for output and ensure you close it after writing.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.