Indexed access

Kotlin makes it easier to access the elements of a list or return the values for a key when it comes to a map. There is no need for you to employ the Java-style syntax such as get(index) or get(key)—you can simply use array-style indexing to retrieve your items:

    val capitals = listOf("London", "Tokyo", "Instambul", "Bucharest") 
    capitals[2]   //Tokyo 
    //capitals[100] java.lang.ArrayIndexOutOfBoundException 
 
    val countries = mapOf("BRA" to "Brazil", "ARG" to "Argentina",  "ITA" to "Italy") 
    countries["BRA"]   //Brazil 
    countries["UK"]    //null 

While it saves you a few keystrokes, I find this construct a lot clearer to read. However, nothing is stopping you from falling back to the .get method.

The preceding syntax...