Why does the code not work?

Question

https://code.sololearn.com/ca17a1152A17
This is the code, it's in kotlin and from the course question of functions module test

I tried quite a few things but it just gives the output as None

Question:

You are working on a eCommerce website and need to make a shipping cost calculator based on the order amount.
The store uses the following cost structure:
For orders in the US:
- $75+ orders have free shipping
- orders less than $75 have a shipping fee of 10% of the total order amount.

For international orders, there is a 15% shipping fee, with a maximum of $50. This means that the maximum shipping fee for an international order is $50.

You need to complete the given shippingCost() function, which takes the order amount and a Boolean indicating whether the order is international or not, and returns the shipping cost for that order.
The return amount should be a Double.

Answer 1

fun shippingCost(amount: Double, international: Boolean): Double {

if (international == false) {
if (amount >= 75.0) {
return 0.0
}
else {
return 0.1*amount
}
}
else {
var tax = 0.15*amount
if (tax > 50.0) {
tax = 50.0
}
return tax
}
}
fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))

}

Answer 2

you doesn't return anthing from your function ^^

also, you could avoid second test in else statements, as your first if test cover the only other alternative (if x != false, then x == true, if not a <= b, then b < a...)

fun shippingCost(total: Double, international: Boolean): Double {
if (international == false) {
if (total >= 75.0) {
return 0.0
}
else {
return 0.1*total
}
}
else {
var tax = 0.15*total
if (tax > 50.0) {
tax = 50.0
}
return tax
}
}

Answer 3

fun shippingCost(total: Double, international: Boolean): Double {

if (international == false) {
if (total >= 75.0) {
return total*0.0
}

else if (total < 75.0) {
return 0.10*total
}

}
else if (international == true) {
if ((total*0.15) > 50.0) {
return 50.0

}
else{
return 0.15*total

}
}
return 0.0

}

fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}

Answer 4

fun shippingCost(total: Double, international: Boolean): Double {

if (international == false) {
if (total >= 75.0) {
return total*0.0
}

else if (total < 75.0) {
return 0.10*total
}

}
else if (international == true) {
if ((total*0.15) > 50.0) {
return 50.0

}
else{
return 0.15*total

}
}
return 0.0

}

fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}

try this

Answer 5

//Have a look at this code ->

fun shippingCost(amount: Double, international: Boolean): Double {
val amount:Double = when(international){
false -> { if(amount>=75.0) 0.0 else (amount*0.1)
}
true -> { if((amount*0.15)>50.0) 50.0 else (amount*0.15)
}
}
return amount
}
fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}

Answer 6

please help me to do shipping calculator

Answer 7

Please help us to code for this problem 🙏

Answer 8

Melhem Kheireddine I don't know if your solution is valid, but:

if it is, that would help to pass the task by copy-pasting, but wouldn't help to learn...

else, you must post your own question thread to be helped ^^

Answer 9

fun shippingCost(amount: Double, international: Boolean): Double {
var shipcost:Double

if (international == false) {
shipcost = 0.0
if (amount < 75.0) {
shipcost = amount*0.1
}
}
else {
shipcost = amount*0.15
if (shipcost > 50.0) {
shipcost = 50.0
}
}

return shipcost
}

fun main() {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}

Answer 10

Here is the solution:

fun shippingCost(amount: Double, international: Boolean): Double {

if (international == false) {
if (amount >= 75.0) {
return 0.0
}
else {
return 0.1*amount
}
}
else {
var tax = 0.15*amount
if (tax > 50.0) {
tax = 50.0
}
return tax
}
}
fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))

}

Answer 11

fun shippingCost(amount: Double, international: Boolean): Double {
when {
international == true && amount * 0.15 <= 50.0 -> return amount * 0.15
international == true && amount * 0.15 > 50.0 -> return 50.0
international != true && amount <= 75.0 -> return amount * 0.10
else -> return 0.0
}
}
fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}

Answer 12

val amount:Double = when(international){
false -> { if(amount>=75.0) 0.0 else (amount*0.1)
}
true -> { if((amount*0.15)>50.0) 50.0 else (amount*0.15)
}
}
return amount

Answer 13

fun shippingCost(amount: Double, international: Boolean): Double {

var cost = 0.0;

if(international){
cost = amount * 0.15
if(cost > 50.0){
cost = 50.0
}
}
else{
if(amount > 75){
cost = 0.0
}
else if(amount < 75){
cost = amount*0.10
}
}

return cost;

}
fun main(args: Array<String>) {
val total = readLine()!!.toDouble()
val international = readLine()!!.toBoolean()
println(shippingCost(total, international))
}