bookstoremanifest.java

来自「构建网上购书最优联盟 此篇文章重在构建囊括最多变量因素的网上购书联盟。计」· Java 代码 · 共 151 行

package tomato;


import java.util.*;

public class BookstoreManifest {
  
  protected static Vector d_manifest = new Vector();
  
  private static BookstoreManifest _instance;
   
  private static BookstoreManifest Instance(){
     
     if (_instance == null)
	 _instance = new BookstoreManifest();
     return _instance;

  }
  
   
  protected BookstoreManifest(){
     
    Location Chinapublocation = new Location(15,15);
    Location dearBooklocation = new Location(10,20);
    Location taobaolocation = new Location(21,14);
   
    Bookstore Chinapub = new Bookstore((String)"Chinapub",Chinapublocation);
    Bookstore dearBook = new Bookstore((String)"dearBook",dearBooklocation);
    Bookstore taobao= new Bookstore((String)"taobao",taobaolocation);
    
    Add(Chinapub);
    Add(dearBook);
    Add(taobao);
  
  
  }
     
  public static void Add( Bookstore bookstore ){
        
    d_manifest.addElement( bookstore );
    
  }
  
  public static void Remove( Bookstore bookstore ){
    
    d_manifest.removeElement(bookstore);

 }
  
 public static Bookstore SelectBookstore(int num){
  	
      return  (Bookstore)d_manifest.elementAt(num);
    	
  }
  
  public static void Display(){
  	
    for(int index = 0; index < d_manifest.size(); index++){    
    	
    	 Bookstore bs = (Bookstore)d_manifest.elementAt(index);
    	 
    	 System.out.print("The No."+(index+1)+" Bookstore :"+bs.GetBookstorename()+'\t');      
    	 bs.GetLocation().Display();
    }	                                         
  }

  
  
  public static void main(String[]args){
  	
    BookstoreManifest aTest = new BookstoreManifest();	
    
    aTest.Display();
  	
  }
  
}