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JavaIntermediate#concurrency
JavaAdvanced#concurrency#java8
What is a CompletableFuture and how does it improve async programming?
CompletableFuture (Java 8+) represents a future result of an async computation, supporting chaining callbacks (thenApply, thenCompose), combining multiple futures, and exception handling without blocking threads.
Example
CompletableFuture.supplyAsync(() -> fetchData())
.thenApply(data -> process(data))
.thenAccept(result -> System.out.println(result))
.exceptionally(ex -> { System.out.println(ex.getMessage()); return null; });