Added basic-struct.go with example of using struct in struct, also calling method.

basic-struct.go

@@ -0,0 +1,78 @@
+// Copyright 2018 Gytis Repečka. All rights reserved.
+// Use of this source code is governed by a GNU GPL
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+  "fmt"
+)
+
+// Define named structures
+
+type CarMake struct {
+  makeTitle string
+  countryOfOrigin string
+}
+
+type Car struct {
+	make CarMake
+  model string
+	year int
+	started bool
+}
+
+// Functions (methods)
+
+// Receiving a pointer to Car so can modify it
+func (c *Car) Start() {
+	c.started = true
+	fmt.Printf("Car %s %s says vrooom!\n", c.make.makeTitle, c.model)
+}
+
+func main() {
+  var carMakes []CarMake
+  newCarMake := CarMake{makeTitle: "Toyota", countryOfOrigin: "Japan"}
+  carMakes = append(carMakes, newCarMake)
+  newCarMake = CarMake{makeTitle: "Renault", countryOfOrigin: "France"}
+  carMakes = append(carMakes, newCarMake)
+  newCarMake = CarMake{"Peugeot", "France"}
+  carMakes = append(carMakes, newCarMake)
+
+  var cars []Car
+  newCar := Car{carMakes[1], "Clio", 1994, false}
+  cars = append(cars, newCar)
+  newCar = Car{carMakes[2], "406", 1997, false}
+  cars = append(cars, newCar)
+  newCar = Car{carMakes[0], "Yaris", 2000, false}
+  cars = append(cars, newCar)
+
+  fmt.Println("--------------------------")
+  fmt.Println("Make | Model | Country")
+  fmt.Println("--------------------------")
+
+  for i:=0; i<len(cars); i++ {
+    fmt.Printf("%s | %s | %s\n", cars[i].make.makeTitle, cars[i].model, cars[i].make.countryOfOrigin)
+  }
+  fmt.Println("--------------------------")
+
+  // Let's execute struct function (method)
+  cars[2].Start()
+  cars[0].Start()
+  fmt.Println("--------------------------")
+
+  fmt.Println("Started cars:")
+  startedCars := 0
+  for i:=0; i<len(cars); i++ {
+    if cars[i].started == true {
+      fmt.Printf("%s %s\n", cars[i].make.makeTitle, cars[i].model)
+      startedCars++
+    }
+  }
+  if startedCars == 0 {
+    fmt.Println("No cars are started.")
+  } else {
+    fmt.Printf("Total: %d\n", startedCars)
+  }
+  fmt.Println("--------------------------")
+}