Kotlin examples

examples.kt

fun main() {
    //ARRAYS
    val array = arrayOf(1,2,3,4,5,6)

    // array size is just a property not another function
    val arrayLength = array.size

    // methods are chained and lambda function can be used
    val multipliedArrayReversed = array.map { it * 2 }.reversed()

    // the order of arguments is consistent
    val oddsOnly = array.filter { it % 2 != 0 }

    // STRINGS
    val string = "Hello World"

    // there are many helpful methods included comparing to Java
    val onlySecondWord = string.substringAfter(' ')
    
    // just another method to reverse the string
    val reversedString = string.reversed()

    // no need to remember about the arguments order
    val startsWithHell = string.startsWith("Hell")

    // again - no need to remember about the order
    val containsHell = string.contains("Hell")
}