Java: Non-Blocking I/O (Event Loops)

Operations that don't wait for completion before returning.

Non-blocking I/O operations allow an application to initiate an I/O task and continue executing other tasks without waiting for the I/O task to complete. This is beneficial in scenarios like a web server processing requests, where the non-blocking nature allows it to handle multiple connections efficiently without waiting for each request to be fully processed before moving on to the next.