Solution: which string is ahead - menu

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examples/string-ahead/string_ahead.go

package main

import "fmt"

func main() {
    var str1 string
    var str2 string
    fmt.Print("First string: ")
    fmt.Scan(&str1)
    fmt.Print("Second string: ")
    fmt.Scan(&str2)

    fmt.Println("1) by length")
    fmt.Println("2) by abc")
    fmt.Print("How shall we compare them? ")
    var choice string
    fmt.Scan(&choice)

    result := 0
    switch choice {
    case "1":
        if len(str1) < len(str2) {
            result = 1
        }
        if len(str1) > len(str2) {
            result = 2
        }
    case "2":
        if str1 < str2 {
            result = 1
        }
        if str1 > str2 {
            result = 2
        }
    }
    fmt.Println(result)
    switch result {
    case 1:
        fmt.Printf("The first string '%s' is ahead of '%s'\n", str1, str2)
    case 2:
        fmt.Printf("The second string '%s' is ahead of '%s'\n", str2, str1)
    default:
        fmt.Printf("The two string '%s' and '%s' are equal.\n", str2, str1)
    }
}