Kotlin Basic Programs for Beginners

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.all { it % 2 == 0 }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val num1: Int? = null
val num2: Int = 5
println(num1 ?: num2)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.find { it % 2 == 0 }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.min()
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.last { it % 2 == 0 }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val str = "hello, world"
val result = str.filter { it.isLetter() }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val sum = nums.fold(0) { acc, num -> acc + num }
println(sum)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.first { it % 2 == 0 }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val result = nums.any { it % 2 == 0 }
println(result)
}

What is the output of the following Kotlin code?

fun main() {
val nums = arrayOf(1, 2, 3, 4, 5)
val sum = nums.reduce { acc, num -> acc + num }
println(sum)
}