Interface example

application.go

package main

import "fmt"

type X interface {
  GetValue() string
}

type Y struct {
  Value string
}

func (y Y) GetValue() string {
  return y.Value
}

func print(param X) {
  fmt.Print(param.GetValue())
}

func main() {
  y := Y{Value: "Hello World"}
  
  print(y)
}