add: numbers and strings exercises

08-numbers-and-strings/02-strings/exercises/02-print-json/main.go

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+// 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"
+
+// ---------------------------------------------------------
+// EXERCISE: Print JSON
+//
+//  1. Change the following program
+//  2. It should use a raw string literal instead
+//
+// HINT
+//  Run this program first to see its output.
+//  Then you can easily understand what it does.
+//
+// EXPECTED OUTPUT
+//  Your solution should output the same as this program.
+//  Only that it should use a raw string literal instead.
+// ---------------------------------------------------------
+
+func main() {
+	// HINTS:
+	// \t equals to TAB character
+	// \n equals to newline character
+	// \" equals to double-quotes character
+
+	json := "\n" +
+		"{\n" +
+		"\t\"Items\": [{\n" +
+		"\t\t\"Item\": {\n" +
+		"\t\t\t\"name\": \"Teddy Bear\"\n" +
+		"\t\t}\n" +
+		"\t}]\n" +
+		"}\n"
+
+	fmt.Println(json)
+}

08-numbers-and-strings/02-strings/exercises/02-print-json/solution/main.go

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+// 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() {
+	// this one uses a raw string literal
+
+	// can you see how readable it is?
+	// compared to the previous one?
+
+	json := `
+{
+	"Items": [{
+		"Item": {
+			"name": "Teddy Bear"
+		}
+	}]
+}`
+
+	fmt.Println(json)
+}