Someone could help?

Question

I tried the "loan calculator" in part 2 of Java. I dont know ANYTHING after it , so please if possible give me a solution possible with the knowledge I got...
I tried a for loop with

for(int month=1; month<=6; month++){
amount = amount - amount/10;
if (month==6)
System.out.println(amount);}

to calculate the money I have to pay after 6 months. Please help!

Answer 1

Here's both options with the Math.ceil() option commented out.

double j = 0.0;
int x = 0;
for(int i = 0; i < 6; i++) {
//amount -= (int)Math.ceil(amount * 0.1);
j = amount / 10.0;
x = amount / 10;
if (j > x) {
amount -= x + 1;
} else {
amount -= x;
}
}
System.out.println(amount);

Answer 2

Look at months 5 and 6 in the example. You'll see there how you need to round up if there is a fractional amount.
Given what has been taught in the course so far, you can use a couple of variables, 1 a double and another an int to both perform the interest calculation. If the double is greater than the int, add 1 to the int and subtract it from the amount otherwise just subtract the int.
OR
You can just wrap what you have in Math.ceil() and cast it to an int, but I don't think this has been taught in the course yet.

Answer 3

amount / 10 will give you an int where when at least 1 of the numbers is a float type (10.0) it will give you a double.
So, Yes, exactly! Lol

Answer 4

I would go better if you initialize it for( in month= 1; month<= 6;month++)

Answer 5

then it will run six times
and not just one

Answer 6

Sorry you are right , I did month=1 , just wrote it wrong here

Answer 7

Could you give me an example code? I tried the first solution you told me but it doesnt work :/

Answer 8

Thx I found my mistake! I did it nearly in the same way but I did j = amount /10;
Does it handle amount as an int when i do /10 or whats the mistake here? :o