kotlin
val numbers = listOf(1, 2, 3, 4, 5)
val squaredNumbers = numbers.map { it * it }
val names = listOf("Alice", "Bob", "Charlie")
val nameLengths = names.map { it.length }
val nestedList = listOf(listOf(1, 2), listOf(3, 4), listOf(5, 6))
val flattenedList = nestedList.flatMap { it }
kotlin
val numbers = listOf(1, 2, 3, 4, 5)
val evenNumbers = numbers.filter { it % 2 == 0 }
val mixedList = listOf(1, "two", null, 3.14, "four")
val nonNullStrings = mixedList.filterNotNull()
val anyTypeList: List<Any> = listOf(1, "two", 3.14, 'c', listOf(4, 5))
val stringList = anyTypeList.filterIsInstance<String>()
kotlin
val numbers = listOf(3, 5, 1, 4, 2)
val ascendingOrder = numbers.sorted()
val names = listOf("Alice", "Bob", "Charlie")
val nameLengthOrder = names.sortedBy { it.length }
data class Person(val name: String, val age: Int)
val people = listOf(Person("Alice", 25), Person("Bob", 30), Person("Charlie", 20))
val ageOrder = people.sortedWith(compareBy { it.age })
kotlin
val list1 = listOf("a", "b")
val list2 = listOf("b", "c")
val combinedList = list1 + list2
val numbers = setOf(1, 2, 3, 4, 5)
val evenNumbers = setOf(2, 4, 6, 8)
val subtractedNumbers = numbers - evenNumbers
val set1 = setOf(1, 2, 3)
val set2 = setOf(2, 3, 4)
val unionSet = set1.union(set2)
groovy
dependencies {
implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.5.30'
}
