21.2. Java NIO (java.nio Package)

Try these first

1. 1.

   What are Buffers used for in Java NIO?

   Hint

   Think of Buffers as containers.

2. 2.

   What is the purpose of a Channel?

   Hint

   Consider what connects Buffers to the outside world.

3. 3.

   What is a Buffer in Java NIO?

   • Container for data
   • File handler
   • None of the above

   Hint

   Reflect on what holds data temporarily.

4. 4.

   True or False: Selectors can manage multiple channels with one thread.

   • True
   • False

   Hint

   Think about resource management in applications.

5. 5.

   Design a non-blocking server using Selectors that accepts multiple client connections and processes reads.

   Hint

   Think about how to manage readiness and read events.

6. 6.

   Write code to demonstrate reading lines from a file using Path and Files in NIO.

   Hint

   Focus on the methods that handle file input.