Solution to exercise of unit 02-06

exercise_0206/go.mod

+module gitlab.reutlingen-university.de/go-exercises/go-starter/exercise_0206
+
+go 1.20

exercise_0206/main.go

+package main
+
+import (
+	"fmt"
+	"os"
+	"unicode/utf8"
+)
+
+func printSlice(s []string) {
+	fmt.Printf("%p –len: %d cap: %d %#v\n", s, len(s), cap(s), s)
+}
+
+func main() {
+	if len(os.Args) > 1 {
+		printSlice(os.Args)
+		numberOfRunes := 0
+		numberOfBytes := 0
+		for _, word := range os.Args[1:] {
+			numberOfBytes += len(word)
+			numberOfRunes += utf8.RuneCountInString(word)
+		}
+		fmt.Printf("Number of bytes: %d\n", numberOfBytes)
+		fmt.Printf("Number of runes: %d\n", numberOfRunes)
+		fmt.Printf("Average number of bytes per rune: %f\n", float32(numberOfBytes)/float32(numberOfRunes))
+	} else {
+		fmt.Printf("Usage: %s <sentence>\n", os.Args[0])
+	}
+}