Struggling with Loan problem

Question

Hi there. I´m struggling with coding the Loan Problem at the end of Module 2 Java.

The problem:
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Loan Calculator

You take a loan from a friend and need to calculate how much you will owe him after 6 months.
You are going to pay him back 10% of the remaining loan amount each month.
Create a program that takes the loan amount as input, calculates and outputs the remaining amount after 6 months.

Sample Input:
20000

Sample Output:
10628
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My code: https://code.sololearn.com/cA172a19a181/#

However, I get a 'No output' .

The question is why I´m not getting any output. Is there anything wrong in the FOR loop?

Thanks in advance

Answer 1

https://www.sololearn.com/Discuss/2673904/?ref=app

Answer 2

There are some illegal character errors ,I removed the spaces from for loop and it outputs 10629 for 20000

Answer 3

Thanks so much for the answer Abhay. I removed the spaces from the FOR loop and I´m do getting outpout 53145 for 100000, when the expected is 53144. I will have to figurate out how to do the exact math operation.
Regards

Answer 4

Enrique Guia In case you haven't figured out a solution, making use of
float variables outputs 10628.82 in my case and 53144.1 in your case .

Answer 5

@Simba: gracias

Answer 6

Use 90% for 6 months to find the balance.
4 lines of code added.

https://code.sololearn.com/cp6GXE4Rc84v/?ref=app

If you are paying 10% every month, one way is to find the 10% and then use your total minus the 10% paid to get the balance.

The other way, is to find the 90% so you don't have to minus.

If you have 100 and you paid 10%,
Method 1: 100 - (100 * 10%) = 90
Method 2: 100 * 90% = 90

The "i=0" is used for looping. It will loop from 0 until 5 (< 6), which is 6 times.

Finally prints out amount.

Answer 7

Enrique Guia

https://code.sololearn.com/cp6GXE4Rc84v/?ref=app

The reason why you get 54145 is because of Integer division. It ignores decimals (rounding down). Ultimately when you do a minus, you get an extra 1.

1: 100000 - 100000/10 = 90000
2: 90000 - 90000/10 = 81000
3: 81000 - 81000/10 = 72900
4: 72900 - 72900/10 = 65610
5: 65610 - 65610/10 = 59049
6: 59049 - 59049/10
= 59049 - 5904 (missing precision)
= 54145 (extra 1, expected 54144)

To bypass, you can do "amount = amount * 90 / 100".

Do not hard-code -1 or +1.

One good example will be 0. After 6 months, it will still be 0. By hard-coding -1, it results in -1 which is wrong.

Answer 8

Thanks for your advice, but at the end of the problem there is the following requirement:
--
Use a loop to calculate the payment and remaining amounts for each month.
Also, use integers for amounts.
--

Answer 9

@Lam Thanks for the explanation.