Kotlin Fibonacci Series

In this tutorial, you shall learn how to write a program to print the Fibonacci Series in Kotlin.

Kotlin Fibonacci Series Program

Fibonacci series starts with zero and one and continues with the next elements where the current element is the sum of previous two elements.

To print first n elements of Fibonacci series in Kotlin, we use For loop statement.

Program

In the following program, we read a number from user and store it in count, then print the first count number of elements in the Fibonacci series.

Main.kt

fun printFibonacciSeriesUntil(count: Int) {
    println("Fibonacci series")
    var t1 = 0
    var t2 = 1
    for (i in 1..count) {
        print("$t1 ")
        val sum = t1 + t2
        t1 = t2
        t2 = sum
    }
}

fun main() {
    print("Enter an integer : ")
    val num = readLine()!!.toInt()
    printFibonacciSeriesUntil(num)
}

Output #1

Enter an integer : 10
Fibonacci series
0 1 1 2 3 5 8 13 21 34

Output #2

Enter an integer : 15
Fibonacci series
0 1 1 2 3 5 8 13 21 34 55 89 144 233 377

Related tutorials for the above program

• Kotlin For loop

Conclusion

In this Kotlin Tutorial, we learned how to print the first specified number of elements in a Fibonacci Series.