Help with project 20 (second one)

Question

Why I have to create this loop dividing the "amount" with INTEGERS instead of double? There is a loss of information as the compiler says....

Answer 1

Can you add a link to your code? it would help others to better understand the problem if they can view the code ...

https://www.sololearn.com/post/75089/?ref=app

Answer 2

Миша Момотюк
That is because you have specified the input to be a double, not an int.

input -> 7.0 is ok
input -> 7 is error

Answer 3

Миша Момотюк
You need to change all your input parameters to meet the int criteria.

Also, create a container to catch your double result.

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double result = 0;
int amount = scanner.nextInt();
for (int i = 1; i <= 3; i++){
result += amount * 0.9;
}
System.out.println(result);
}
}

I put in += after result because the loop indicated that you wanted the result variable to grow, not just continue to be re-assigned with the same value each iteration

Answer 4

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double amount = scanner.nextDouble();
for (int i = 1; i <= 3; i++){
amount = amount*0.9;
}
System.out.println(amount);
}
}
//It works perfectly with double but not int

Answer 5

That's how that normally works. But the task requires me to make this work with int, not double(7.0 is error, 7 is ok). If i change it to int, the compiler will say "there is a data loss!"