Practice File Class (13.4.3) - File Handling

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9 questions

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Exercise
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What method do you use to check if a file exists?
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Think about how you would confirm presence.
Question 2.
How would you create a new file named 'test.txt'?
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Consider the sequence of creating a file.
3Question 3.
What does the exists() method do?
- Checks if a file can be read
- Checks if a file exists
- Checks file size
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Reflect on the importance of confirming a file's presence.
4Question 4.
True or False: The length() method returns the last modified date of the file.
- True
- False
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Consider what 'length' implies in context.
Question 5.
Design a Java program that checks if a specified file exists and deletes it. If it does not exist, print an appropriate message.
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Remember to handle potential IOException for the delete operation.
Question 6.
Create a script that logs the sizes of multiple files in a directory and outputs them to a text file.
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Utilize FileWriter for output and ensure you close it after writing.

5 more questions in this section. Enroll free to practise them all.