1 00:00:00,120 --> 00:00:05,700 All righty, so now we're done with the fundamentals of Scotland, so the chapter is done and now we 2 00:00:05,700 --> 00:00:11,520 can finally get into the app development and we can finally build our own applications. 3 00:00:12,590 --> 00:00:18,920 But we, of course, are going to learn quite some other fundamentals when it comes to Scotland throughout 4 00:00:18,920 --> 00:00:23,330 the course, so it's not done with the fundamentals, it's just that I think at this point we have enough 5 00:00:23,330 --> 00:00:26,810 fundamentals to get started developing some real applications. 6 00:00:27,140 --> 00:00:27,530 All right. 7 00:00:27,770 --> 00:00:32,840 And what you have learned in this chapter is, of course, how to use a realists because we are going 8 00:00:32,840 --> 00:00:34,250 to use a realist a lot. 9 00:00:34,400 --> 00:00:39,650 Then we looked at lumpy expressions and lumpy expressions are something that is used, built in quite 10 00:00:39,650 --> 00:00:39,920 a bit. 11 00:00:39,920 --> 00:00:44,810 So Android is using it quite a bit and we are going therefore also use it. 12 00:00:45,050 --> 00:00:47,810 Even though you might not build your own lambda expressions. 13 00:00:47,810 --> 00:00:51,410 As such, then we have seen how visibility modifiers work. 14 00:00:51,590 --> 00:00:59,390 So how you can make sure that a variable or a function is only usable at a specific context? 15 00:00:59,720 --> 00:01:03,890 And we've seen how Knesset in our classes work, what the difference is and what we need to take care 16 00:01:03,890 --> 00:01:08,030 of and how safe and unsafe operators work. 17 00:01:08,510 --> 00:01:14,060 And then finally, we have, of course, looked into try and catch or exceptional handling with those. 18 00:01:15,350 --> 00:01:22,010 And now you know how you can make sure that your application doesn't crash if an error occurs that you 19 00:01:22,010 --> 00:01:24,740 at least expect it to potentially happen. 20 00:01:25,130 --> 00:01:25,520 All right. 21 00:01:25,910 --> 00:01:27,830 So that's it for this chapter. 22 00:01:28,100 --> 00:01:31,090 Let's get started with building Android applications. 23 00:01:31,130 --> 00:01:32,240 See you in the next video.