65 lines
2.1 KiB
Go
65 lines
2.1 KiB
Go
// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package main
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import "fmt"
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// ---------------------------------------------------------
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// EXERCISE: Assign slice literals
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//
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// 1. Assign the following data using slice literals to the slices that
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// you've declared in the first exercise.
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//
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// 1. The names of your three best friends (to the names slice)
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//
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// 2. The distances to five different locations (to the distances slice)
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//
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// 3. Five bytes of data (to the data slice)
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//
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// 4. Two currency exchange ratios (to the ratios slice)
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//
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// 5. Up/Down status of four different web servers (to the alives slice)
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//
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// 2. Print their type, length and whether they're equal to nil value or not
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//
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// 3. Compare the length of the distances and the data slices; print a message
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// if they are equal (use an if statement).
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//
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//
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// EXPECTED OUTPUT
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// names : []string 3 false
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// distances: []int 5 false
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// data : []uint8 5 false
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// ratios : []float64 2 false
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// alives : []bool 4 false
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// The length of the distances and the data slices are the same.
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// ---------------------------------------------------------
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func main() {
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var (
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names []string // The names of your friends
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distances []int // The distances
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data []byte // A data buffer
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ratios []float64 // Currency exchange ratios
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alives []bool // Up/Down status of web servers
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)
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names = []string{}
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distances = []int{}
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data = []byte{}
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ratios = []float64{}
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alives = []bool{}
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fmt.Printf("names : %T %d %t\n", names, len(names), names == nil)
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fmt.Printf("distances: %T %d %t\n", distances, len(distances), distances == nil)
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fmt.Printf("data : %T %d %t\n", data, len(data), data == nil)
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fmt.Printf("ratios : %T %d %t\n", ratios, len(ratios), ratios == nil)
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fmt.Printf("alives : %T %d %t\n", alives, len(alives), alives == nil)
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}
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