trying_out_go/averageMySolution.go

package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"strconv"
	"strings"

	"git.linuxhg.com/john-okeefe/keyboard"
)

func averageMySolution() {
	fmt.Printf("What is the name of the file: ")
	fileString, err := keyboard.GetString()
	Error(err)
	fileString = strings.TrimSpace(fileString)
	file, err := os.Open(fileString)
	Error(err)
	var sum float64 = 0
	scanner := bufio.NewScanner(file)
	counter := 0
	for scanner.Scan() {
		number, err := strconv.ParseFloat(scanner.Text(), 64)
		Error(err)
		sum += number
		counter++
	}
	err = file.Close()
	Error(err)
	if scanner.Err() != nil {
		log.Fatal(scanner.Err())
	}
	sampleCount := float64(counter)
	fmt.Printf("Average: %0.2f\n", sum/sampleCount)
}