import java.util.Scanner;

public class Coins 

{

public static void main(String[] args)

{

Scanner scan=new Scanner(System.in);

double amt;

int quarter,dime,nickel,penny,totalCents;

System.out.println("Please enter the amount of dollars");

amt=scan.nextDouble();

totalCents=(int)amt;

totalCents= (int) (1000*amt);

quarter=(int) (amt/.25);

dime=(int) ((amt-(quarter*.25))/.10);

nickel=(int) ((amt-(quarter*.25)-(dime*.10))/.05);

penny=(int) ((amt-(quarter*.25)-(dime*.10)-(nickel*.10))/.01);

System.out.println("Quarters: " + quarter);

System.out.println("Dimes: " + dime);

System.out.println("Nickels: " + nickel);

System.out.println("Pennies: "+ penny);

}

}

이 소스코드를 돌려서 1.13이나 1.14 넣었을때

penny 계산이 하나적더라고요;; 

수학오류를 뭘로 잡아야할까요;