Operator - Filter

Filter

emit only those items from an Observable that pass a predicate test

The Filter operator filters an Observable by only allowing items through that pass a test that you specify in the form of a predicate function.


-----------------------------------------------------------------


//        EVEN
        Observable
                .just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
                .filter(integer -> integer % 2 == 0)
                .subscribe(System.out::println);

//          ODD
        Observable
                .just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
                .filter(integer -> integer % 2 == 1)
                .subscribe(System.out::println);



----------------------------------------------------------------






















22