public class ChildrensCategory extends Category
{
  public int priceCode()
  {
    return Movie.CHILDRENS;
  }
  
  public double price( int daysRented )
  {
    double amount =  1.5;
    if ( daysRented > 3 )
      amount = amount + (daysRented - 3) * 1.5;
    return amount;
  }
}