shopcar.java

传递多种物品

package shopcar;
import shopcar.good.*;
import java.util.*;

public class Shopcar{
   private Vector v=new Vector(5,2);
   
   public Shopcar(){}

   public void addGood(Good g){
      int n=v.size();
      int tag=0;
      Good ng;
      for(int i=0;i<n;i++){
        ng=(Good)v.elementAt(i);
        if(ng.getName().equals(g.getName())){
           if((ng.getMount()+g.getMount())>0){
              ng.setMount(ng.getMount()+g.getMount());
              tag=1;
              break;
           }else{
                  v.removeElementAt(i);tag=2;break;
           }
        }
      }
 
      if(tag==0){v.add(g);}
   }

   public Object [] show(){
      return v.toArray(); 
   }
}