Loan calculator Java.

Question

Hi, I've been trying to complete the lean calculator on java. I'll get cases 1,2, and 5 right but 3 and 4 wrong. I'm not sure why or how. A friend said that it's a rounding issue however I can't see cases 3 and 4 because of the paywall. Any help on why this is wrong would be great.

The answer has to be an integer and it has to calculate for out to 6 months.

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double amount = scanner.nextInt();

for(int x = 0; x < 6; x++){ //this is where u set the counter for the months up
amount*=.90;// this is where the loan is calculated

}
System.out.println ((int)amount); //this is converting amount into an integer.

}
}

Answer 1

littlems AJ

Do this

amount = amount * 90 / 100;

Answer 2

@IAmAJ! Same issue sadly. Thank you tho!

Answer 3

littlems AJ

Problem is in taking input. You declared amount as double but used nextInt() to get value so change amount as int type.

Try this

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

int amount = scanner.nextInt();

for(int i = 0; i < 6; i++) {
amount = amount * 90 / 100;
}

System.out.print(amount);
}
}

Answer 4

@IAmAJ thanks that worked!
I was using () around the 90/100 before which is why it wasn't working when I last tried it. Thank you!

Answer 5

import java.util.Scanner;

public class Program
{
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int amount = scanner.nextInt();
int loan;
//your code goes here
for(int i=1;i<=3;i++)
{
loan =amount/10;
amount-=loan;
}
System.out.println(amount);
}
}