Go Program to Calculate Array Average

Write a Go Program to calculate the average of array items. The for loop in this Golang example iterates the array items from zero to five. Within the loop (for i := 0; i < 5; i++), we are calculating the sum of array items. Next, we divide the array sum by array size or length, i.e., 5, to get the average.

package main

import "fmt"

func main() {
    arrTofindAvg := [5]int{10, 20, 30, 40, 50}
    fmt.Println(arrTofindAvg)

    arraySum := 0

    for i := 0; i < 5; i++ {
        arraySum += arrTofindAvg[i]
    }

    arrayAvg := arraySum / 5
    fmt.Println("The Average of Array Items = ", arrayAvg)
    fmt.Println("The sum of Array Items     = ", arraySum)
}

[10 20 30 40 50]
The Average of Array Items =  30
The sum of Array Items     =  150

Go Program to Calculate the Average of Array Items using for loop range.

package main

import "fmt"

func main() {
    arrTofindAvg := [7]int{15, 25, 35, 45, 55, 65, 75}
    fmt.Println(arrTofindAvg)

    arraySum := 0

    for _, arr := range arrTofindAvg {
        arraySum += arr
    }

    arrayAvg := arraySum / 7
    fmt.Println("The Average of Array Items = ", arrayAvg)
    fmt.Println("The sum of Array Items     = ", arraySum)
}

[15 25 35 45 55 65 75]
The Average of Array Items =  45
The sum of Array Items     =  315

This Golang program allowed entering the array items and calculated the average of those array elements.

package main

import "fmt"

func main() {
    var arrTofindAvg [5]int

    fmt.Print("Enter the Array Items =  ")
    for i := 0; i < 5; i++ {
        fmt.Scan(&arrTofindAvg[i])
    }

    fmt.Println(arrTofindAvg)

    arraySum := 0

    for _, arr := range arrTofindAvg {
        arraySum += arr
    }

    arrayAvg := arraySum / 5
    fmt.Println("The Average of Array Items = ", arrayAvg)
    fmt.Println("The sum of Array Items     = ", arraySum)
}