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Go Examples
Go Program to Compute Sum of Digits and Product of Digits
Go Programming Example to Calculate Sum of digits using for loop
This go program is used to find the sum of digits for a number which is provided as user input using for loop.
package main
import "fmt"
func sumOfDigits(num int) int {
var sum int = 0
for temp:=num; temp!=0; temp=temp/10 {
remainder := temp % 10
sum = sum + remainder
}
return sum
}
func main() {
var num, digits_sum int
digits_sum = 0
fmt.Print("Enter number: ")
fmt.Scanf("%d", &num)
digits_sum = sumOfDigits(num)
fmt.Printf("Sum of digits %d: %d\n", num, digits_sum)
}
Output:
$ go build digits-sum.go $ ./digits-sum Enter number: 345 Sum of digits 345: 12 $ ./digits-sum Enter number: 3456 Sum of digits 3456: 18
Note: when providing the negative number to find the sum of digits to this go program and negative sign is added with the sum of digits.
$ ./digits-sum Enter number: -76 Sum of digits -76: -13
Go Programming Example to Calculate Product of digits using for loop
This go program is used to find the product of digits for a number which is provided as user input using for loop.
package main
import "fmt"
func productOfDigits(num int) int {
var product int = 1
for temp:=num; temp!=0; temp=temp/10 {
remainder := temp % 10
product = product * remainder
}
return product
}
func main() {
var num, digits_product int
digits_product = 0
fmt.Print("Enter number: ")
fmt.Scanf("%d", &num)
digits_product = productOfDigits(num)
fmt.Printf("Product of digits %d: %d\n", num, digits_product)
}
Output:
$ go build digits-product.go $ ./digits-product Enter number: 345 Product of digits 345: 60 $ ./digits-product Enter number: 4353 Product of digits 4353: 180
Note: when providing the negative number to find the product of digits to this go program and negative sign is added with the product of digits.
$ ./digits-product Enter number: -345 Product of digits -345: -60 $ ./digits-product Enter number: -908 Product of digits -908: 0
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