emptyOptional = Optional.empty(); emptyOptional.ifPresent(System.out::println);//Does nothing."> emptyOptional = Optional.empty(); emptyOptional.ifPresent(System.out::println);//Does nothing."> emptyOptional = Optional.empty(); emptyOptional.ifPresent(System.out::println);//Does nothing.">
Optional<String> optionalWithValue = Optional.of("foo");
optionalWithValue.ifPresent(System.out::println);//Prints "foo".

Optional<String> emptyOptional = Optional.empty();
emptyOptional.ifPresent(System.out::println);//Does nothing.