/* Change.java -- define a "Change" class to determine how many pennies,
 * nickels, dimes and quarters equal a certain amount of change.
 * There's more than one way to do this, but I think the easiest way
 * is to make an attribute out of all these numbers (int's).
 * The purpose of this example program is to practice with the / and %
 * operations.
 */

public class Change
{
  private int cents;
  private int pennies;
  private int nickels;
  private int dimes;
  private int quarters;

  // Constructor -- let's assume we start out knowing # cents
  public Change(int money)
  {
    cents = money;

    // compute the number of quarters, and then subtract them
    // from the total.  But we don't want to change the value of
    // "cents".  So we'll keep track of how much change is left
    // in a separate variable changeLeft.
    quarters = cents / 25;
    int changeLeft = cents % 25;

    // compute dimes in a similar way
    dimes = changeLeft / 10;
    changeLeft = changeLeft % 10;

    // and do the same for nickels -- but then the change left over
    // will simply be the number of pennies
    nickels = changeLeft / 5;
    pennies = changeLeft % 5;
  }

  // Output function.  Note that the '\t' character is a tab for indenting.
  public void printCoins()
  {
    System.out.println("\nTo give " + cents + " cents change, you need:");
    System.out.println("\t" + quarters + " quarters");
    System.out.println("\t" + dimes + " dimes");
    System.out.println("\t" + nickels + " nickels");
    System.out.println("\tand " + pennies + " pennies");
  }
}