MainActivity.java

Observable<Integer> observable = Observable.from(new Integer[]{1,2,3,4,5})  //emit 1 to 5
        .skip(2);   //Skip first two elements

observable
        .subscribeOn(Schedulers.newThread())
        .observeOn(Schedulers.io())
        .subscribe(new Action1<Integer>() {
            @Override
            public void call(Integer integer) {
                Log.d("Observer", "Output:" + integer);
            }
        });
//Output will be : 3, 4, 5