Advanced Java Programming: Exchanging Data Between Threads

The Exchanger V class is a synchronization point at which threads can pair and swap elements within pairs. Each thread presents some object on entry to the exchange method, matches with a partner thread, and receives its partner's object on return. An Exchanger is particularly useful in applications involving genetic algorithms and pipeline designs.This example shows two threads exchanging messages through an Exchanger. Each thread sends a message and waits for the other to provide its message, showcasing a simple yet effective use of thread coordination.

Imagine you and a friend have different storybooks that you've both finished reading. You meet at a local library with the intention of swapping books so each of you can enjoy a new story. You have a book titled "The Adventure of the Lost City," and your friend has "Mysteries of the Enchanted Forest." You both agree to swap; you hand over your adventure story, and in return, you receive the mystery story. Now, both of you have a new book to read.

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