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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does it mean to append to a file?
💡 Hint: Think about what happens to the old data.
Question 2
Easy
What class is used for writing data to a file?
💡 Hint: Consider the name! What does it do?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What method is used to write a new line to a file in Java?
- writeLine()
- println()
- appendLine()
💡 Hint: It starts with 'p' and is used commonly in output.
Question 2
True or False: You can only write to a new file when using the FileWriter class.
- True
- False
💡 Hint: Think about appending vs. creating a file.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a method that appends a list of strings to a file named 'messages.txt'. How would you handle exceptions?
💡 Hint: Remember to always close your PrintWriter in a finally block or use try-with-resources.
Question 2
Considering multiple users are adding to the same log file, what might be an issue, and how could it be resolved?
💡 Hint: Think about how data integrity can be maintained.
Challenge and get performance evaluation