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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What class is used to read character files in Java?
💡 Hint: Think about the name that starts with 'File' for reading files.
Question 2
Easy
True or False: BufferedReader improves the efficiency of reading text files.
💡 Hint: Recall that buffering means to store data temporarily to speed up the process.
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
Which class is used to efficiently read text from a file?
- FileReader
- BufferedReader
- FileWriter
💡 Hint: Focus on efficiency when processing text.
Question 2
True or False: It is necessary to close FileWriter to prevent resource leaks.
- True
- False
💡 Hint: Think about what happens if you don’t close it.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a method that reads a file and counts the number of lines in it, handling any exceptions that occur during the process.
💡 Hint: Make use of a while loop to read until the end of the file.
Question 2
Develop a program that writes a list of names to a file, ensuring each name is on a new line, and handles the necessary exceptions.
💡 Hint: Use a for-each loop to iterate through the list of names.
Challenge and get performance evaluation