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1. Examples of Kotlin collections and t... Examples of Kotlin collections and the different operations we can do with them.

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   /* 

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       Examples taken from the book "Kotlin for Android Developers" by Antonio Leiva (Chapter 18) 

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       https://antonioleiva.com/kotlin-android-developers/

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   */

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2. Examples on Kotlin nullity Examples on Kotlin nullity

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     /* Kotlin makes use of question marks "?" to identify nullable types.

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        This means that if a variable can be null, we have to deal with it in some way, otherwise

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        it won't compile. */

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3. KotlinFlowControlAndRangesExamples.kt KotlinFlowControlAndRangesExamples.kt

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       /* "If" expression */

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       // We can use "if" as usual:

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       val x = 4