NULL POInTER Exception in update JDBC

Question

hi gus the following exception is getting me mad!!!anyone can help please
it is in an update statement ,here is the code:
public void actionPerformed( ActionEvent event )
                        // INSERT TO  msg DATABASE
                         // SEND THE MESSAGE
                       connect con = new connect("Data");
                       String m_title = "";
                       String m_content = "";
                       m_title = title.getText();
                       m_content = msg_area.getText();
                     try
                            //here is the exception
                            PreparedStatement ps = con.conn.prepareStatement("insert into messages (Title, Content) values (\'"+ "?" +"\',\'"+ "?" +"\');");
                                ps.setString(1,m_title);
                      ps.setString(2,m_content);
                          ps.executeUpdate();
                        //ps.executeUpdate();
                        stat1.close();
                        ps.close();
                           con.conn.close();
                         }Thanks in advance!

Answer 1

it gave me this new exception(General Error):
   PreparedStatement ps = con.conn.prepareStatement("insert into messages (Title, Content) values (?,?)");
                    System.out.println("hi");
                                ps.setString(1,"m_title");
                                 System.out.println("hi2");
                      ps.setString(2,m_content);
                       System.out.println("hi3");
                    //here it gives me exception:java.sql.SQLEXCEPTION=General Error
                         ps.executeUpdate(); the last thing the system writes is "hi3",any help please?