DebuggingUsingLogOperator.java

private static void debuggingUsingLogOperator() {
        List<String> nameList = Arrays.asList("Rochel", "April", "Hong");

        Flux<String> stringFlux = Flux.fromIterable(nameList)
                .distinct()
                .map(name -> name.substring(0, 3))
                .map(String::toUpperCase)
                .log();

        stringFlux.subscribe(log::info);
}