non-blocking

To avoid blocking, use asynchronous callbacks:

• thenApply: Transform the result.

  future.thenApply(result -> result.toUpperCase())
        .thenAccept(System.out::println);  // Output: HELLO, COMPLETABLEFUTURE!
  

• thenAccept: Consume the result (no transformation).

  future.thenAccept(result -> System.out.println("Result: " + result));
  

• thenRun: Run a task after completion (doesn’t consume the result).

  future.thenRun(() -> System.out.println("Computation finished!"));
  

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Backlinks

• CompletableFuture