add: json encoding/decoding quiz and exercises

24-structs/exercises/04-encode/main.go

@@ -0,0 +1,65 @@
+// 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
+
+// ---------------------------------------------------------
+// EXERCISE: Encode
+//
+//  Add a new command: "save". Encode the games to json, and
+//  print it, then terminate the loop.
+//
+//  1. Create a new struct type with exported fields: ID, Name, Genre and Price.
+//
+//  2. Create a new slice using the new struct type.
+//
+//  3. Save the games into the new slice.
+//
+//  4. Encode the new slice.
+//
+//
+// RESTRICTION
+//  Do not export the fields of the game struct.
+//
+//
+// EXPECTED OUTPUT
+//  Inanc's game store has 3 games.
+//
+//    > list   : lists all the games
+//    > id N   : queries a game by id
+//    > save   : exports the data to json and quits
+//    > quit   : quits
+//
+//  save
+//
+//  [
+//          {
+//                  "id": 1,
+//                  "name": "god of war",
+//                  "genre": "action adventure",
+//                  "price": 50
+//          },
+//          {
+//                  "id": 2,
+//                  "name": "x-com 2",
+//                  "genre": "strategy",
+//                  "price": 40
+//          },
+//          {
+//                  "id": 3,
+//                  "name": "minecraft",
+//                  "genre": "sandbox",
+//                  "price": 20
+//          }
+//  ]
+//
+// ---------------------------------------------------------
+
+func main() {
+	// use your solution from the previous exercise
+
+}