Practice Java Nio (java.nio Package) (21.2) - Java I/O and NIO

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What are Buffers used for in Java NIO?
Show hintHide hint
Think of Buffers as containers.
Question 2.
What is the purpose of a Channel?
Show hintHide hint
Consider what connects Buffers to the outside world.
3Question 3.
What is a Buffer in Java NIO?
- Container for data
- File handler
- None of the above
Show hintHide hint
Reflect on what holds data temporarily.
4Question 4.
True or False: Selectors can manage multiple channels with one thread.
- True
- False
Show hintHide hint
Think about resource management in applications.
Question 5.
Design a non-blocking server using Selectors that accepts multiple client connections and processes reads.
Show hintHide hint
Think about how to manage readiness and read events.
Question 6.
Write code to demonstrate reading lines from a file using Path and Files in NIO.
Show hintHide hint
Focus on the methods that handle file input.

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