Simple Interface

knowInterface.go

package main

import (
  "fmt"
 "reflect"
)
type Car struct
{
weight float32
}
func CanTalkToAnyOne(dummy interface{}) {
	str := reflect.TypeOf(dummy).String()
	obj := reflect.ValueOf(dummy)
	switch str {
	case "int":

		fmt.Printf("Welcome Mr. %s, Take %v", str, obj.Int())
	case "float32":

		fmt.Printf("Seems you are float %f", obj.Float())
	default:
		fmt.Printf("Dont know your type  %s", str)
		fmt.Printf("\nTrying to print native format %v ", obj)
	}
}

func main() {
	fmt.Println("Hello, playground")
	var v int = 1024
	var f float32 = 3.1312
	var f64 float64 = 3.1312
	var maruti Car

	CanTalkToAnyOne(v)

	fmt.Printf("\n\n")
	CanTalkToAnyOne(f)

	fmt.Printf("\n\n")
	CanTalkToAnyOne(f64)

	fmt.Printf("\n\n")
	CanTalkToAnyOne(maruti)
}