What is Java NIO and how does it work?

What is Java NIO and how does it work?

Java NIO (New Input/Output) is a collection of Java programming language APIs that offer non-blocking I/O operations. It allows for scalable network applications and file handling.

What are the main components of Java NIO?

The main components of Java NIO include Buffers, Channels, Selectors, and File I/O. Buffers hold data, Channels facilitate data transfer, and Selectors allow for multiplexing.

Can you explain how selectors work in Java NIO?

Selectors in Java NIO enable a single thread to manage multiple channels. They allow you to check which channels are ready for reading or writing, improving efficiency.

What are the advantages of using Java NIO over traditional I/O?

Java NIO provides non-blocking I/O, which allows for better resource management and scalability, especially in high-performance applications.

Are there any common use cases for Java NIO?

Yes, common use cases include building high-performance servers, handling large file transfers, and developing real-time applications.