Count Number of Consonants in a String in Go

Write a program to ask the user to give a string and then the program will count the number of consonants in the given string and display the results on the screen in Golang.

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Sample Program Output

Program Listing

/* consonants_count.go

   Author   : Mr. Jake Rodriguez Pomperada, MAED-IT

   Date     : August 5, 2019  Monday  5:54 AM

   Location : Bacolod City, Negros Occidental

   Website  : http://www.jakerpomperada.com

   Emails   : jakerpomperada@gmail.com and jake_pomperada@tup.edu.ph

 */

package main

import (

"bufio"

"fmt"

"os"

"regexp"

"strings"

)

func count_consonants(s string) map[string]int {

m     := make(map[string]int)

re, _ := regexp.Compile(`[bcdfghjklmnpqrstvwxyz]`)

res   := re.FindAllString(s, -1)

for _, v := range res {

m[v]++

}

return m

}

func main() {

consoleReader := bufio.NewReader(os.Stdin)

fmt.Print("\n")

fmt.Print("\tCount Number of Consonants in a String")

fmt.Print("\n\n")

fmt.Print("\tGive a String : ")

str, _ := consoleReader.ReadString('\n')

fmt.Print("\n")

display :=  count_consonants(strings.ToLower(str))

fmt.Print("\tDisplay the Results")

fmt.Print("\n\n")

fmt.Print("\t",display)

fmt.Print("\n\n")

fmt.Print("\tEnd of Program")

fmt.Print("\n")

}