learngo/16-slices/exercises/04-declare-arrays-as-slices/main.go

// For more tutorials: https://blog.learngoprogramming.com
//
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//

package main

import "fmt"

// ---------------------------------------------------------
// EXERCISE: Declare the arrays as slices
//
//   1. First run the following program as it is
//
//   2. Then change the array declarations to slice declarations
//
//   3. Observe whether anything changes or not (on the surface :)).
//
// EXPECTED OUTPUT
//  names    : []string ["Einstein" "Tesla" "Shepard"]
//  distances: []int [50 40 75 30 125]
//  data     : []uint8 [72 69 76 76 79]
//  ratios   : []float64 [3.14]
//  alives   : []bool [true false true false]
//  zero     : []uint8 []
// ---------------------------------------------------------

func main() {
	names := [3]string{"Einstein", "Tesla", "Shepard"}
	distances := [...]int{50, 40, 75, 30, 125}
	data := [5]byte{'H', 'E', 'L', 'L', 'O'}
	ratios := [1]float64{3.14145}
	alives := [...]bool{true, false, true, false}
	zero := [0]byte{}

	fmt.Printf("names    : %[1]T %[1]q\n", names)
	fmt.Printf("distances: %[1]T %[1]d\n", distances)
	fmt.Printf("data     : %[1]T %[1]d\n", data)
	fmt.Printf("ratios   : %[1]T %.2[1]f\n", ratios)
	fmt.Printf("alives   : %[1]T %[1]t\n", alives)
	fmt.Printf("zero     : %[1]T %[1]d\n", zero)
}