javabook.java

java 完全探索的随书源码

public class JavaBook implements Sellable {
  public String getDescription() {
    return "Java Book";
  };

  public String getUnits() {
    return "Each";
  }

  public double getPricePerUnit() {
    return 39.95;
  }

  public double getWeight() {
    return 4.5;
  }
}