Monetary value as double

Question

I have to do a program which prompts for and reads a double value representing a monetary amount. It has to determine the fewest number of each bill and coin needed to represent that amount, starting with the highest (maximum size needed a ten dollar bill). So far, this is all I have for my code. But I am really having trouble on the calculation part I just don't know how to start. Thanks for your help.
import java.util.Scanner;
    public class Program_2_9
   //This program will prompt for and read a double value. Then determine
   //the fewest number of each bill and coin needed to represent that
   //amount, starting with the highest(10 dollar bill is the maximum size
   //needed).
       public static void main(String[] args)
      //Declaration section
         double pennies,nickels,dimes,quarters,dollar;
         int total;
         Scanner scan = new Scanner(System.in);
      //Read coins value as a double value
         System.out.println("Enter amount of dollars(double value): ");
         dollar= scan.nextDouble();
         System.out.println("Enter amount of quarters(double value): ");
         quarters= scan.nextDouble();
         System.out.println("Enter amount of dimes(double value): ");
         dimes= scan.nextDouble();
         System.out.println("Enter amount of nickels(double value): ");
         nickels = scan.nextDouble();
         System.out.println("Enter amount of pennies(double value): ");
         pennies = scan.nextDouble();
     

Answer 1

Here's some info on classpath:
Javapedia: Classpath
How Classes are Found
Setting the class path (Windows)
Setting the class path (Solaris/Linux)
Understanding the Java ClassLoader
java -cp .;<any other directories or jars> YourClassNameYou get a NoClassDefFoundError message because the JVM (Java Virtual Machine) can't find your class. The way to remedy this is to ensure that your class is included in the classpath. The example assumes that you are in the same directory as the class you're trying to run.
javac -classpath .;<any additional jar files or directories> YourClassName.javaYou get a "cannot resolve symbol" message because the compiler can't find your class. The way to remedy this is to ensure that your class is included in the classpath. The example assumes that you are in the same directory as the class you're trying to run.