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All righty, so now we're done with the fundamentals of Scotland, so the chapter is done and now we

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can finally get into the app development and we can finally build our own applications.

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But we, of course, are going to learn quite some other fundamentals when it comes to Scotland throughout

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the course, so it's not done with the fundamentals.

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It's just that I think at this point we have enough fundamentals to get started developing some real

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applications.

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All right.

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And what you have learned in this chapter is, of course, how to use a realist's because we are going

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to use a lot.

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Then we looked at Lampa expressions and expressions of something that is used built in quite a bit.

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So Android is using it quite a bit.

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And we're going therefore also use it, even though you might not build your own lambda expressions

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as such.

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Then we have seen how visibility modifiers work.

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So how you can make sure that a variable or a function is only usable at a specific context.

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And we've seen how nested in classes work, what the difference is and what we need to take care of

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and how safe and unsafe operators work.

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And then finally, we have, of course, looked into try and catch or exceptional handling with those

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keywords.

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And now you know how you can make sure that your application doesn't crash if an error occurs that you

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at least expect it to potentially happen.

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All right.

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So that's it for this chapter.

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Let's get started with building Android applications.

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See you in the next video.