+ 2

Lesson 19: Loan Calculator Assistance

Currently doing the loan calculator and I’m having a bit of trouble figuring out what loop statement I should use for this. Rundown of it is taking a number, subtracting 10% of it, 3 times. What I am struggling with is figuring out how to have the new amount applied to the variable. Im thinking something along the lines of int x = 10 (Base amount of loan) int y = x / 10 (Find and assign 10% of Loan) int z = x - y How would I assign the new value of Z to X? Or is there a much more efficient way to do this?

5th Aug 2022, 3:15 PM
koalakodes
koalakodes - avatar
13 Réponses
+ 7
int x = 20000; // input amount; for( int I = 0; I<3; I++) x = x - x/10; // x -= x/10; System.out.print(x) ; any loop will works, not much differences.
5th Aug 2022, 3:46 PM
Jayakrishna 🇮🇳
+ 3
I'm pretty sure you can just assign "x = z" as your last line of calculation and it should come out fine. I don't know if it's more efficient but you can definitely do the large part of the calculation in 1 line. Something like int x = inputAmount × 10%
5th Aug 2022, 3:26 PM
Ausgrindtube
Ausgrindtube - avatar
+ 3
I don't think it gets any better than Jayakrishna🇮🇳 's for loop. (Just quietly, he's a bit of genius and has helped me a lot too)
5th Aug 2022, 3:59 PM
Ausgrindtube
Ausgrindtube - avatar
+ 2
x = z; or it's equal to amount = amount - amount /10;
5th Aug 2022, 3:27 PM
Jayakrishna 🇮🇳
+ 2
You have to declare variable only once. You can use that anytimes.. int x ; ==> declaring.. x = 20; => assigning... x = x + 30;
5th Aug 2022, 3:38 PM
Jayakrishna 🇮🇳
+ 2
Okay, I see the error I was making. I kept putting int amount = amount - blah blah I had to remove the int. I love you guys lol, thank you
5th Aug 2022, 3:38 PM
koalakodes
koalakodes - avatar
+ 2
import java.util.Scanner; public class Program { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int amount = scanner.nextInt(); //your code goes here int months = 3; for (int i = 0; i < months; i++) amount = amount * 90 / 100; System.out.println(amount); } }
7th Aug 2022, 7:40 AM
Harsh Nama
Harsh Nama - avatar
+ 1
So I can declare a new value to the variable even after its already been declared? It wouldnt produce an error saying that x has already been declared?
5th Aug 2022, 3:34 PM
koalakodes
koalakodes - avatar
+ 1
I passed the challenge! Thank you lol. One last question. What would you guys suggest I do to clean this up? I went the extensive route by just typing it 3 times, but what loop would work best in this scenario & how would it be formatted? This is what I wrote to pass: int x = amount / 10; int y = amount - x; amount = y; x = amount / 10; y = amount - x; amount = y; x = amount / 10; y = amount - x; amount = y; System.out.println(amount);
5th Aug 2022, 3:42 PM
koalakodes
koalakodes - avatar
+ 1
I got I got finally I passed
7th Aug 2022, 8:00 AM
Heather Linn
Heather Linn - avatar
0
Int val to double
7th Aug 2022, 1:41 AM
Heather Linn
Heather Linn - avatar
0
Just reassign x = z And should be enclosed in a for loop
7th Aug 2022, 12:43 PM
zacharia njovu
zacharia njovu - avatar
- 1
Heather Linn if you read this thread carefully, the answer is there. If you want to receive help with your code, start a new thread and post your code there.
7th Aug 2022, 7:37 AM
Ausgrindtube
Ausgrindtube - avatar