1 00:00:00,120 --> 00:00:04,710 All right, so now we're done with the object oriented programming chapter in this chapter, you have 2 00:00:04,710 --> 00:00:10,830 seen what object oriented programming is, how classes and objects work, how to create objects of classes, 3 00:00:11,190 --> 00:00:18,450 how to create instances pretty much of classes, then what members of classes are, then we have seen 4 00:00:18,450 --> 00:00:20,280 how to use interfaces. 5 00:00:20,520 --> 00:00:22,020 How to use inheritance. 6 00:00:22,200 --> 00:00:25,980 How to also use data classes. 7 00:00:25,980 --> 00:00:27,060 And what scope. 8 00:00:27,690 --> 00:00:28,050 All right. 9 00:00:28,050 --> 00:00:34,290 So these are going to be very important fundamentals that you will need throughout the next chapter. 10 00:00:34,290 --> 00:00:41,610 So we are going to use all of them at one point or at many points, depending on which specific topic 11 00:00:41,610 --> 00:00:42,210 we're looking at. 12 00:00:42,420 --> 00:00:46,140 And many of the things that we have learned are going to happen in the background. 13 00:00:46,140 --> 00:00:53,820 So many of the functionality that we have seen is actually used already quite a bit by Android itself 14 00:00:53,820 --> 00:00:59,100 or better set by the different classes that there are already when it comes to Android development. 15 00:00:59,100 --> 00:01:01,230 And we are using quite some of them. 16 00:01:01,230 --> 00:01:08,880 So we're constantly already using inheritance because we are using the app combat activity in our main 17 00:01:08,880 --> 00:01:09,330 activity. 18 00:01:09,330 --> 00:01:10,530 So we're inheriting from it. 19 00:01:10,830 --> 00:01:11,190 OK. 20 00:01:11,340 --> 00:01:18,060 And you will recognize more and more of those things once we get to developing more complex applications. 21 00:01:18,270 --> 00:01:20,370 OK, so thanks a lot for being with me. 22 00:01:20,640 --> 00:01:22,590 And let's get to the next chapter. 23 00:01:22,620 --> 00:01:23,190 See you there!