Got up to pointers

README.md

@@ -1,2 +1,9 @@
 # golang_course
 
+##Setting you GOPATH
+
+`go env` will display your current GO Environment variables
+
+### Windows
+
+set GOPATH=C:\Users\Gideon\go\src\golang_course

hello/hello.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+	"runtime"
+)
+
+var (
+	name   string
+	course string
+	module float64
+)
+
+func main() {
+	fmt.Println("Hello from: ", runtime.GOOS)
+}

hello/pointers.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+var my_name = "Drew"
+var program_name = os.Args[0]
+
+func main() {
+	fmt.Println("Starting up program:", program_name)
+	change_name(&my_name)
+	fmt.Println("Ok so you name is:", my_name)
+
+}
+
+func change_name(name *string) {
+	*name = "Your name is no longer useful"
+}

hello/reflection.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+)
+
+var (
+	// alternative method
+	// name, course, module = "Nigel", "Docker Deep Dive", 3.2
+	name   string  = "Drew"
+	course string  = "Docker Deep Dive"
+	module float64 = 3.2
+)
+
+func main() {
+
+	fmt.Println("Name is", name, "and is of type", reflect.TypeOf(name))
+	fmt.Println("Module is", module, "and is of type", reflect.TypeOf(module))
+}

hello/reflection2.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func main() {
+
+	a := 10.000000000
+	b := 3
+
+	fmt.Println("\nA is type", reflect.TypeOf(a), "and B is of type", reflect.TypeOf(b))
+
+	c := int(a) + b
+
+	fmt.Println("\nC has value:", c, "and is of type", reflect.TypeOf(c))
+}

hello/reflection3.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func main() {
+
+	name := "Drew"
+	//GO won't let us use unused variables inside of functions
+	//course string  = "Docker Deep Dive"
+	module := 3.2
+
+	fmt.Println("Name is", name, "and is of type", reflect.TypeOf(name))
+	fmt.Println("Module is", module, "and is of type", reflect.TypeOf(module))
+}

hello/variable.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+)
+
+var (
+	name   string
+	course string
+	module float64
+)
+
+func main() {
+	fmt.Println("Name is set to ", name)
+	fmt.Println("Module is set to ", module)
+}