Collections Operations
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fun main(args : Array<String>){
//funFilter()
//filterNot()
//map()
//count()
// firstItem()
// first()(
//sum()
sorted()
}
fun funFilter(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val evenList = numberList.filter{it % 2 == 0}
print(evenList)
}
fun filterNot(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val notEvenList = numberList.filterNot{ it % 2 == 0 }
print(notEvenList)
}
fun map(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val multipliedBy5 = numberList.map { it * 5 }
println(multipliedBy5)
}
fun count(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
//hitung jumlah
println(numberList.count())
//hitung habis di bagi 3
print(numberList.count{ it % 3 == 0})
}
fun firstItem(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
//cari ganjil pertama
val firstOddNumber = numberList.find{ it % 2 == 1 }
println(firstOddNumber)
}
//firstOrNull() dan lastOrNull()
fun first(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val habisdibagi3 = numberList.first { it % 3 == 0}
print(habisdibagi3)
}
fun sorted(){
val kotlinChar = listOf('k', 'o', 't', 'l', 'i', 'n')
//ascending
val ascendingSort = kotlinChar.sorted()
println(ascendingSort)
//descending
val descendingSort = kotlinChar.sortedDescending()
println(descendingSort)
}
fun sum(){
val numberList = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
val total = numberList.sum()
}
Kotlin
INFO