Trần Đức TâmBlockedUnblockFollowFollowingI studied as a Software Engineer. I’d like to research about algorithms. My target’s become a solution architecture for 5 year. Hope we can share our knowledge.Jul 13, 2017Now the open keyword! In kotlin it’s the opposite of final in JavaKotlin : Retrofit + RxAndroid + RealmAhmed Rizwan3888The `open` keyword denotes the `public` accept modifier in Java.The `final` keyword be `val` and non-final’s `var`.