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Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an IOException?
💡 Hint: Think of what happens if a file doesn’t exist.
Question 2
Easy
What does the catch block do?
💡 Hint: What's the purpose of catching an error?
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 exception is commonly thrown while handling files?
- NullPointerException
- IOException
- ArrayIndexOutOfBoundsException
💡 Hint: Think about what happens during I/O tasks.
Question 2
True or False: A try-catch block can prevent a program from crashing due to an exception.
- True
- False
💡 Hint: Consider how exceptions work within a program.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are required to write a program that reads a list of file names from a text file and attempts to open each file. If any file can't be opened, log the error to a separate error log file.
💡 Hint: Consider using a loop to process multiple files and handle exceptions accordingly.
Question 2
Create a Java program to copy the contents of one file to another. Include exception handling for both file not found and IO issues.
💡 Hint: Ensure to close all streams after use to prevent memory leaks.
Challenge and get performance evaluation