optimho

import java.util.concurrent.TimeUnit
import kotlin.random.Random
import kotlin.system.measureNanoTime

fun main(args: Array<String>) {

        val names:List<String?> = listOf("Donn","John","Mike",null,"Davita","Jen",null,"Mihta")
        val namesThatareNotNull = names.filterNotNull()
        println(namesThatareNotNull)
}

optimho

import java.util.concurrent.TimeUnit
import kotlin.random.Random
import kotlin.system.measureNanoTime

fun main(args: Array<String>) {


    measure {
    val list: Sequence<Int> = generateSequence(Random.nextInt(0,100)) {  Random.nextInt(0,100) }
        .take(100_000_000)

optimho

import java.util.concurrent.TimeUnit
import kotlin.random.Random
import kotlin.system.measureNanoTime

fun main(args: Array<String>) {


measure {
    val list: List<Int> = generateSequence(Random.nextInt(0,100)) {  Random.nextInt(0,100) }
        .take(100_000_000)

optimho

fun main(args: Array<String>) {

val states:MutableMap<String, String> = mutableMapOf(
    "NY" to "New York",
    "NJ" to "New Jersy",
    "CA" to "California"
)
    var result: String?=states.get("NY")
    println(result)

optimho

fun main(args: Array<String>) {


    val i=9
    if (i in 0..10){
        println("Yes")
    }else {
        println("No")
    }

optimho

fun main(args: Array<String>) {


    var people: List<Persons> = listOf(
        Persons("Michael"),
        Persons("David"),
        Persons("Mark"),
        Persons("Paul"),
    )

optimho

fun main(args: Array<String>) {


    var people: List<Persons> = listOf(
        Persons("Michael"),
        Persons("David"),
        Persons("Mark"),
        Persons("Paul"),
    )

optimho

fun main(args: Array<String>) {



    var people: List<Persons> = listOf(
        Persons("Michael"),
        Persons("David"),
        Persons("Mark"),
        Persons("Paul"),
    )

optimho

fun main(args: Array<String>) {

    val values: List<Int> = listOf(1, 2, 3, 4, 5, 6, 7, 8)

    for (number in values) {
        println(number)
    }

    for (i in 0 until 100) {
        println(i)

optimho

fun main(args: Array<String>) {

    val names:MutableSet<String> = mutableSetOf("Donn","John","Felicia")
    println(names)
    names.add("Michael")
    println(names)
    names.remove("John")
    println(names)

    val people:Set<Person> = setOf(