Refactoring-ch01-customer.java

class Customer {
  private String _name;
  private Vector _rentals = new Vector();
  public Customer (String name){
    _name = name;
  };
  public void addRental(Rental arg) {
    _rentals.addElement(arg);
  }
  public String getName (){
    return _name;
  };
  
  public String statement() {
    double totalAmount = 0;
    int frequentRenterPoints = 0;
    Enumeration rentals = _rentals.elements();
    String result = "Rental Record for " + getName() + "\n";
    while (rentals.hasMoreElements()) {
    double thisAmount = 0;
    Rental each = (Rental) rentals.nextElement();
    //determine amounts for each line
    switch (each.getMovie().getPriceCode()) {
      case Movie.REGULAR:
        thisAmount += 2;
        if (each.getDaysRented() > 2)
          thisAmount += (each.getDaysRented() - 2) * 1.5;
        break;
      case Movie.NEW_RELEASE:
        thisAmount += each.getDaysRented() * 3;
        break;
      case Movie.CHILDRENS:
        thisAmount += 1.5;
        if (each.getDaysRented() > 3)
          thisAmount += (each.getDaysRented() - 3) * 1.5;
        break;
    }
    
    // add frequent renter points
    frequentRenterPoints ++;
    // add bonus for a two day new release rental
    if ((each.getMovie().getPriceCode() == Movie.NEW_RELEASE)
      && each.getDaysRented() > 1) 
      frequentRenterPoints ++;
      
    //show figures for this rental
    result += "\t" + each.getMovie().getTitle()+ "\t" +
    String.valueOf(thisAmount) + "\n";
    totalAmount += thisAmount;
    
    //add footer lines
    result += "Amount owed is " + String.valueOf(totalAmount) + "\n";
    result += "You earned " + String.valueOf(frequentRenterPoints)
            + " frequent renter points";
    return result;
  }
}