package testapplication;
 
import java.util.HashMap;
 
public class Main {
 
    /** Creates a new instance of Main */
    public Main() {
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        try {
            Class myClass = Class.forName("testapplication.MyFactory");
            System.out.println(myClass);
 
            HashMap<Class,Class> daomap = new HashMap<Class,Class>();
 
            //Interface
            //Real
            Class interfaceClass = Class.forName("testapplication.LorryDAO");
            daomap.put(interfaceClass, interfaceClass);
 
            //create a new instance of the interface
            DAO dao;
            dao = (DAO)daomap.get(interfaceClass).newInstance();
 
            LorryDAO myDao = (LorryDAO) dao;
           myDao.getXXXXX();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
 
    }    
}

package testapplication;
 
 
public class DAO {
 
    /** Creates a new instance of DAO */
    public DAO() {
    }
 
    public void myDAO() {}
}

 
import testapplication.DAO;
 
public class LorryDAO extends DAO{
 
    /** Creates a new instance of LorryDAO */
    public LorryDAO() {
    }
 
 
    public void getXXXXX() {}
}