/**
 * Title:        Chapter 2, "Primitive Data Types and Operations"
 * Description:  Examples for Chapter 2
 * Copyright:    Copyright (c) 2000
 * Company:      Armstrong Atlantic State University
 * @author Y. Daniel Liang
 * @version 1.0
 */

// ComputeChange.java: Break down an amount into smaller units
public class ComputeChange
{
  /**Main method*/
  public static void main(String[] args)
  {
    double amount; // Amount entered from the keyboard

    // Receive the amount entered from the keyboard
    System.out.println(
      "Enter an amount in double, for example 11.56");
    amount = MyInput.readDouble();

    int remainingAmount = (int)(amount*100);

    // Find the number of one dollars
    int numOfOneDollars = remainingAmount/100;
    remainingAmount = remainingAmount%100;

    // Find the number of quarters in the remaining amount
    int numOfQuarters = remainingAmount/25;
    remainingAmount = remainingAmount%25;

    // Find the number of dimes in the remaining amount
    int numOfDimes = remainingAmount/10;
    remainingAmount = remainingAmount%10;

    // Find the number of nickels in the remaining amount
    int numOfNickels = remainingAmount/5;
    remainingAmount = remainingAmount%5;

    // Find the number of pennies in the remaining amount
    int numOfPennies = remainingAmount;

    // Display results
    System.out.println("Your amount " + amount + " consists of ");
    System.out.println(numOfOneDollars + "\t dollars");
    System.out.println(numOfQuarters + "\t quarters");
    System.out.println(numOfDimes + "\t dimes");
    System.out.println(numOfNickels + "\t nickels");
    System.out.println(numOfPennies + "\t pennies");
  }
}

// -------------------

// a class for reading various types from the keyboard (System.in) 
class MyInput
{
    public static String readString()
    {
        String string = "";
        java.io.BufferedReader bufferedReader = 
           new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
        try
        {
            string = bufferedReader.readLine();
        }
        catch (java.io.IOException ex)
        {
            throw new RuntimeException(ex);
        }
        return string;
    }

    public static int readInt()
    {
        return Integer.parseInt(readString());
    }

    public static double readDouble()
    {
        return Double.parseDouble(readString());
    }

    // test all the methods of this class
    public static void main(String[] args)
    {
        System.out.println("Testing 'readString()'");
        System.out.print("Input your string : ");
        System.out.println("Your string was '" + readString() + "'");
        System.out.println("\nTesting 'readInt()'");
        System.out.print("Input your int : ");
        System.out.println("Your int was '" + readInt() + "'");
        System.out.println("\nTesting 'readDouble()'");
        System.out.print("Input your double : ");
        System.out.println("Your double was '" + readDouble() + "'");
    }
}