add: string quiz + execises

19-strings-runes-bytes/exercises/01-convert/main.go

@@ -0,0 +1,37 @@
+package main
+
+// ---------------------------------------------------------
+// EXERCISE: Convert the strings
+//
+//   1. Loop over the words slice
+//
+//   2. In the loop:
+//      1. Convert each string value to a byte slice
+//      2. Print the byte slice
+//      3. Append the byte slice to the `bwords`
+//
+//   3. Print the words using the `bwords`
+//
+// EXPECTED OUTPUT
+//  [103 111 112 104 101 114]
+//  [112 114 111 103 114 97 109 109 101 114]
+//  [103 111 32 108 97 110 103 117 97 103 101]
+//  [103 111 32 115 116 97 110 100 97 114 100 32 108 105 98 114 97 114 121]
+//  gopher
+//  programmer
+//  go language
+//  go standard library
+// ---------------------------------------------------------
+
+func main() {
+	// Please uncomment the code below
+
+	// words := []string{
+	// 	"gopher",
+	// 	"programmer",
+	// 	"go language",
+	// 	"go standard library",
+	// }
+
+	// var bwords [][]byte
+}

19-strings-runes-bytes/exercises/01-convert/solution/main.go

@@ -0,0 +1,32 @@
+// For more tutorials: https://blog.learngoprogramming.com
+//
+// Copyright © 2018 Inanc Gumus
+// Learn Go Programming Course
+// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
+//
+
+package main
+
+import "fmt"
+
+func main() {
+	words := []string{
+		"gopher",
+		"programmer",
+		"go language",
+		"go standard library",
+	}
+
+	var bwords [][]byte
+	for _, w := range words {
+		bw := []byte(w)
+
+		fmt.Println(bw)
+
+		bwords = append(bwords, bw)
+	}
+
+	for _, w := range bwords {
+		fmt.Println(string(w))
+	}
+}