cartbiz.java

sorry i have only one

package cart.biz;

import cart.util.*;
import cart.dao.ProductDao;
import java.sql.Connection;
import cart.model.Product;
import java.sql.SQLException;

public class CartBiz
{
  Connection conn=null;
  ProductDao productDao=null;
  public Product getProductById(int id)throws SQLException{
    conn=ConnUtil.getConnection();
    Product p=null;
    try{
      p=(Product) productDao.selectById(conn,id);
    }catch(SQLException e){
      throw e;
    }
    return p;
  }
}