Practice Key Concepts in NIO - 21.2.1 | 21. Java I/O and NIO | Advanced Programming
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a buffer in Java NIO?

💡 Hint: Think about data types.

Question 2

Easy

Name a type of channel in Java NIO.

💡 Hint: Consider different uses for channels.

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 does a buffer in Java NIO do?

  • Stores metadata
  • Holds data temporarily
  • Transfers data between channels

💡 Hint: Consider the role a buffer has during data processing.

Question 2

Are selectors used for non-blocking I/O?

  • True
  • False

💡 Hint: Think about how selectors affect thread efficiency.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a small Java application that demonstrates the use of buffers and channels by reading a file's content into a buffer and displaying it.

💡 Hint: Remember the process: open a file, get the channel, and read into the buffer.

Question 2

Explain how you would implement a server that handles multiple client connections using selectors and channels.

💡 Hint: Think about the steps needed for non-blocking I/O.

Challenge and get performance evaluation