I'm trying to make a basic little banking program to get my bearing with Go. I run the program and when I type in my answer for either of the if statements, the program just moves on. Any solutions?
here's my code:
package main
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
func main() {
reader := bufio.NewReader(os.Stdin)
fmt.Print("Enter your name: ")
name, _ := reader.ReadString('
')
fmt.Print("Hello ", name)
balance := 0
fmt.Print("Do you want to deposite? (y/n) ")
doDeposite, _ := reader.ReadString('
')
if strings.TrimRight(doDeposite, "
") == "y" {
fmt.Print("How much would you like to deposite? ")
depositeAmount, _ := reader.ReadString('
')
da, _ := strconv.Atoi(depositeAmount)
balance += balance + da
fmt.Print("Your balance is ", balance)
} else {
fmt.Print("Would you like to withdraw?(y/n) ")
doWithdraw, _ := reader.ReadString('
')
if strings.TrimRight(doWithdraw, "
") == "y" {
fmt.Print("How much would you like to withdraw? ")
withdrawAmount, _ := reader.ReadString('
')
wa, _ := strconv.Atoi(withdrawAmount)
balance += balance + wa
fmt.Print("Your balance is ", balance)
}
}
}
try to use ReadLine() method instead of ReadString()
the doc say
ReadLine tries to return a single line, not including the end-of-line bytes.
ReadString reads until the first occurrence of delim in the input, returning a string containing the data up to and including the delimiter
Here is the updated deposit
code for reference:
[...]
fmt.Print("How much would you like to deposit? ")
depositAmount, _, err := reader.ReadLine()
if err != nil {
fmt.Printf("ReadLine() error: '%s'", err)
}
da, err := strconv.Atoi(string(depositAmount))
if err != nil {
fmt.Printf("strconv error: '%s'", err)
}
balance += balance + da
fmt.Print("Your balance is ", balance)
[...]
Alternatively, you could trim based on which OS are you executing your code.
if runtime.GOOS == "windows" {
input = strings.TrimRight(input, "
")
} else {
input = strings.TrimRight(input, "
")
}