why the code is not a solution of a modulo 2 project in java language

Question

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int amount = scanner.nextInt();
//введите код сюда
int x = 3 ;
do {
amount = amount / 100 * 90 ;
x--;
} while(x != 0);
System.out.println(amount);
}
}

Answer 1

So, you can declare the "temp" variable for it. Why doesn't your code solves the task? I think thats because Java compiler automatically convert the "float" to "int" but in wrong way. So your code have to look like:

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int amount = scanner.nextInt();
//введите код сюда
float rez = 0;
int x = 3 ;
do {
rez = (float)amount / 100 * 90 ;
amount = (int)rez;
x--;
} while(x > 0);
System.out.println(amount);
}
}

Answer 2

everything works great with three months as well

Answer 3

What's actual project you are talking about? Cuz there is no such task in second modulo of Java course

Answer 4

You borrow money from a friend and you need to calculate how much you owe him in 3 months. Every month you will return 10% of the debt to him. Create a program that uses the amount owed as input, calculates and outputs the remaining amount after 3 months. Example input: 20000 Example output: 10628

Answer 5

Here i added the "rez" variable with "float" datatype. Each iteration i do all operations and assign it to "rez" as float and then assign "rez" value to "amount" but as an integer

Answer 6

thanks for the help. I will be more attentive