How Interfaces Work

gistfile1.txt

package main

import (
	"fmt"
)

type ZipCoder interface {
	fullName() string
}

type CustRecord struct {
	FirstName, LastName string
}

func (c CustRecord) fullName() string {
	return c.FirstName + " :: " + c.LastName
}

func main() {
	CustOne := CustRecord{"John", "Vilsack"}
	CustTwo := CustRecord{"Rachel", "Vilsack"}

	fmt.Printf("%v", ZipCoder.fullName(CustOne))
	fmt.Printf("%v", ZipCoder.fullName(CustTwo))

}