Refactoring-ch01-replace-cond-with-polymorphism-move.java

class Rental...
    double getCharge() {
        return _movie.getCharge(_daysRented);
    }
    
class Rental...
    int getFrequentRenterPoints() {
        if ((getMovie().getPriceCode() == Movie.NEW_RELEASE) &&
            getDaysRented() > 1)
            return 2;
        else
            return 1;
    }
    
class rental...
    int getFrequentRenterPoints() {
        return _movie.getFrequentRenterPoints(_daysRented);
    }
    
class movie...
    int getFrequentRenterPoints(int daysRented) {
        if ((getPriceCode() == Movie.NEW_RELEASE) && daysRented > 1)
            return 2;
        else
            return 1;
    }