Kotlin program using recursion to calculate power

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In this program, you will learn to use recursive functions in Kotlin to calculate the power of a number.

Example: A program that uses recursion to calculate power

fun main(args: Array<String>) {
　　　　val base =　3
　　　　val powerRaised =　4
　　　　val result = power(base, powerRaised)
　　　　println("$base^$powerRaised = $result")
}
fun power(base: Int, powerRaised: Int): Int {
　　　　if (powerRaised != 0)
　　　　　　　　return base　*　return base　-　1)
　　　　else
　　　　　　　　return　1
}

When the program is run, the output is:

3^4　=　81

In the above program, you use the recursive function power() to calculate the power.

In simple terms, the recursive function multiplies the base with itself to get the number of times to raise, that is:

3　*　3　*　3　*　3　=　81

This is the equivalent Java code:Java Program Using Recursion to Calculate Power

Comprehensive Collection of Kotlin Examples