Golang Exercise to practice structs, interfaces, and methods

gokata.go

package main

import (
	"fmt"
	"math"
)

type cube struct {
	length float64
}

type box struct {
	length float64
	width  float64
	height float64
}

type sphere struct {
	radius float64
}

type ofStructure interface {
	volume() float64
}

func (c cube) volume() float64 {
	return c.length * c.length * c.length
}

func (s sphere) volume() float64 {
	return (4 * math.Pi * math.Pow(s.radius, float64(3))) / 3
}

func (b box) volume() float64 {
	return b.length * b.width * b.height
}

func calculateVolume(kind ofStructure, called string) {
	fmt.Printf("The Volume calculated for our %s is: %f \n", called, kind.volume())
}

func main() {

	c := cube{
		length: 7,
	}

	b := box{
		length: 5.5,
		width:  5.5,
		height: 7.7,
	}

	s := sphere{
		radius: 7.14,
	}

	calculateVolume(c, "Cube")
	calculateVolume(b, "Box")
	calculateVolume(s, "Sphere")
}

This is just a "GoLang Kata" to burn the memory of structs, interfaces, and methods into my mind. Hopefully, this helps someone who is trying to get their heads around the use of structs, interfaces, and methods in Golang.

https://play.golang.org/p/Po0VYbRD41B

Hey thank you for sharing this. Was having difficulty understanding interfaces

Hey, I'm glad I could assist you with your journey🙏🏾