一个水气收费系统 具有 删除 查询等功能

				import java.awt.*;
				import java.awt.event.*;
				import javax.swing.* ;
				import java.sql.* ;
				import java.lang.Object ;
				
				
				
				public class conn
				
				{
					Connection conn = null ;
				
					public conn(String user,String pass)
					{
					
					  	 try
				        {     
				        
				        	Class.forName("oracle.jdbc.driver.OracleDriver") ;
					     
				          	String url = "jdbc:oracle:thin:@192.168.1.95:1521:sky" ;
					
				        	//String user = "wanglei" ;
				        	//String pass = "wanglei" ;
					
				        	conn = DriverManager.getConnection(url,user,pass) ;
				
				        
				        
				        
				        }//try
				        catch(Exception e)
				        {
				        JOptionPane.showMessageDialog(new JFrame(), "Wrong connection", "Dialog", 
				                          JOptionPane.ERROR_MESSAGE); 	
				        }
				    }//conn    
				 }//class