stockitem.java

来自「程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件」· Java 代码 · 共 21 行

package questions.c5;
class Identifiable {
   private int idNum =  -1;
   public Identifiable( int id ) {
      idNum = id;
   }
   public void setID( int id ) {
      idNum = id;
   }
}
public class StockItem extends Identifiable {
   private double price = 0.00;
   public void setPrice( double p ) {
      price = p;
   }
   public static void main( String[] args ) {
      StockItem s = new StockItem();
      s.setID( 12343567 );
      s.setPrice( 34.67 );
   }
}