Kotlin program to calculate the average using an array

Comprehensive Collection of Kotlin Examples

In this program, you will learn to calculate the average of a given array in Kotlin.

Example: Program to calculate the average of an array using an array

fun main(args: Array<String>) {
　　　　val numArray = doubleArrayOf(45.3,　67.5,　-45.6,　20.34,　33.0,　45.6)
　　　　var sum = 0.0
　　　　for (num in numArray) {
　　　　　　　　sum　+= num
　　　　}
　　　　val average = sum　/　numArray.size
　　　　println("Average:　%.2f".format(average))
}

When running the program, the output is:

Average:　27.69

In the above program, numArray stores the floating-point values required for the average.

Then, to calculate average, we need to first calculate the sum of all elements in the sum array. This is done using the for loop in Java.-each loop completed.

Finally, we calculate the average using the following formula:

average = sum of numbers　/　total count

In this case, the total count (total count) is given by numArray.length.

Finally, we use the format() function to print the average so that it uses “%.2f”to limit the decimal point to2

This is the equivalent Java code:Java Program to Calculate Average Using Array

Comprehensive Collection of Kotlin Examples