merchandise.java

来自「Java the UML Way 书中所有源码」· Java 代码 · 共 37 行

/*
 * Merchandise.java   E.L. 1999-10-27 (2000-10-14, english version)
 * Is to be used in exercises, chapter 10.
 *
 */
class Merchandise {
  private static final double VAT = 23.0;
  private static final double VATfactor = 1.0 + VAT / 100.0;

  private String merchandiseName;
  private int merchandiseNo;
  private double price; // price a kilo, without VAT

  public Merchandise(String initMerchandiseName, int initMerchandiseNo, double initPrice) {
    merchandiseName = initMerchandiseName;
    merchandiseNo = initMerchandiseNo;
    price = initPrice;
  }

  public Merchandise(String initMerchandiseName, int initMerchandiseNo) {
    merchandiseName = initMerchandiseName;
    merchandiseNo = initMerchandiseNo;
    price = 0.0;
  }

  public double getPriceWithoutVAT(double noKilo) {
    return price * noKilo;
  }

  public double getPriceWithVAT(double noKilo) {
    return price * noKilo * VATfactor;
  }

  public void setPrice(double newPrice) {
    price = newPrice;
  }
}