Learning GO

Composite_Types/composite_types.go

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+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"sort"
+)
+
+func main() {
+	scan := bufio.NewScanner(os.Stdin)
+	words := make(map[string]int)
+	scan.Split(bufio.ScanWords)
+
+	total := 0
+
+	for scan.Scan() {
+		words[scan.Text()]++
+		total++
+	}
+
+	fmt.Printf("this file has about %v words and ", total)
+	fmt.Println(len(words), "Unique words")
+
+	type kv struct {
+		key string
+		val int
+	}
+
+	var ss []kv
+	for k, v := range words {
+		ss = append(ss, kv{k, v})
+	}
+
+	sort.Slice(ss, func(i, j int) bool {
+		return ss[i].val > ss[j].val
+	})
+
+	for _, s := range ss[:4] {
+		fmt.Println(s.key, "appears", s.val, "times")
+	}
+}

Composite_Types/go.mod

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+module main
+
+go 1.26.5

Composite_Types/test.txt

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+Hello there, Bright morning hikers crossed quiet valleys while curious birds circled overhead. Each traveler carried water, maps, snacks, sturdy boots, and cameras. They discovered ancient stones, fragrant flowers, distant waterfalls, colorful butterflies, mossy bridges, peaceful ponds by sunset. Everyone shared stories, laughter, gratitude, and plans another adventure. Bright morning hikers crossed valleys, while curious birds circled overhead, and everyone shared stories.