Why does not the data get saved into the Database

Question

Please check if there is any thing wrong with my code here. Why cant i save the data in to my database. when i used the same things in other places it works.
guys i have copied a portion of the code here. right now i have commented few areas to not give me any errors on the whole program
Please check why cant i save the data into the database.
i have created a seperate class for database connection Utilities
void saveData()
               //Utilities ut = new Utilities();
               //connection = ut.getConnection();
               //ResultSet resultSet;
          // JourneyID = ut.getResults(qryJourneyID);
               strJourneyID = txtJourneyID.getText();
               System.out.println("++++++++++++++++++++++++"+strJourneyID);
               strVehicleID = (String)comboVehicleID.getSelectedItem();
               System.out.println("++++++++++++++++++++++++"+strVehicleID);
               strDriverID = (String)comboDvrID.getSelectedItem();
               System.out.println("++++++++++++++++++++++++"+strDriverID);
               strStartDateTime = txtDateTime.getText();
               System.out.println("++++++++++++++++++++++++"+strStartDateTime);
               int a = JOptionPane.showConfirmDialog (null, "Are u sure you want to save the changes?", "WARNING!", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                    if (a == 0)
                         if(NEW)// new is a boolean value
                              //ADDING NEW DATA STATMENT
                              System.out.println("INSERTING NEW ROW IN THE TABLE...");
                              try
                                   String insert ="INSERT INTO Job VALUES (" + "'" + strJourneyID + "'"+
                                   ", '"+ strVehicleID +     "',"
                                   +"'"+ strDriverID +"',"
                                   + "'"+ strStartDateTime +"')";
                                   System.out.println("STATEMENT IS " + insert);
//                                   InsertStmt = connection.createStatement();
//                                   InsertStmt.executeUpdate(insert);
                                   JOptionPane.showMessageDialog(null, "You data has been successfully saved.","TIS: Operation completed", JOptionPane.INFORMATION_MESSAGE);
                              catch (Exception e)
                                   e.printStackTrace();
                                   JOptionPane.showMessageDialog(null, "Problem encountered while adding new data");
                         else
                              JOptionPane.showMessageDialog(null, "it is supposed to save data");
                              /*try
                                   String ChangeRecord = "UPDATE Job SET " +
                                   "JourneyID = '" + strJourneyID+ "'"+
                                   "VehicleID = '" + strVehicleID+"',"+
                                   "DriverID = '"+strDriverID+"'," +
                                   "StartDateTime='" + strStartDateTime+ "'";//syntax error???
                                   System.out.println(""+ ChangeRecord);
                                   UpdateStmt = connection.createStatement();//just added
                                   UpdateStmt.executeUpdate(ChangeRecord);
                                   JOptionPane.showMessageDialog(null, "You data has been successfully saved.","TIS: Operation completed", JOptionPane.INFORMATION_MESSAGE);
                              catch (Exception change_exception)
                                   change_exception.printStackTrace();
                                   JOptionPane.showMessageDialog (null, "Problem encountered while updating","TIS: Problem encountered",JOptionPane.ERROR_MESSAGE);
                    else
                         JOptionPane.showMessageDialog(null, "You chose to cancel the operation","Operation cancelled", JOptionPane.INFORMATION_MESSAGE);
                    }

Answer 1

Yes you have commented all the code that update the
database so how can it update the database.
By the way for inserting dont use Statement use
PrepairedStatement
by the way next time please post codes in code tagsMan i have commented it becaues it if i dont comment it givens me errors. like cannot find variable and i dont understand how to use the code button. whereever i click the code button it displays the  at the end of the code! what to do?
connection = ut.getConnection();
ResultSet resultSet;
UpdateStmt = connection.createStatement();
UpdateStmt = connection.createStatement();
UpdateStmt.executeUpdate(ChangeRecord);
please check it once again
void saveData()
               Utilities ut = new Utilities();
               connection = ut.getConnection();
               ResultSet resultSet;
          // JourneyID = ut.getResults(qryJourneyID);
               strJourneyID = txtJourneyID.getText();
               System.out.println("++++++++++++++++++++++++"+strJourneyID);
               strVehicleID = (String)comboVehicleID.getSelectedItem();
               System.out.println("++++++++++++++++++++++++"+strVehicleID);
               strDriverID = (String)comboDvrID.getSelectedItem();
               System.out.println("++++++++++++++++++++++++"+strDriverID);
               strStartDateTime = txtDateTime.getText();
               System.out.println("++++++++++++++++++++++++"+strStartDateTime);
int a = JOptionPane.showConfirmDialog (null, "Are u sure you want to save the changes?", "WARNING!", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
                    if (a == 0)
                         if(NEW)
                              //ADDING NEW DATA STATMENT
                              System.out.println("INSERTING NEW ROW IN THE TABLE...");
                              try
                                   String insert ="INSERT INTO Job VALUES (" + "'" + strJourneyID + "'"+
                                   ", '"+ strVehicleID +     "',"
                                   +"'"+ strDriverID +"',"
                                   + "'"+ strStartDateTime +"')";
                                   System.out.println("STATEMENT IS " + insert);
//                                   InsertStmt = connection.createStatement();
//                                   InsertStmt.executeUpdate(insert);
                                   JOptionPane.showMessageDialog(null, "You data has been successfully saved.","TIS: Operation completed", JOptionPane.INFORMATION_MESSAGE);
                              catch (Exception e)
                                   e.printStackTrace();
                                   JOptionPane.showMessageDialog(null, "Problem encountered while adding new data");
                         else
                              JOptionPane.showMessageDialog(null, "it is supposed to save data");
                              try
                                   String ChangeRecord = "UPDATE Job SET " +
                                   "JourneyID = '" + strJourneyID+ "'"+
                                   "VehicleID = '" + strVehicleID+"',"+
                                   "DriverID = '"+strDriverID+"'," +
                                   "StartDateTime='" + strStartDateTime+ "'";//syntax error???
                                   System.out.println(""+ ChangeRecord);
                                   UpdateStmt = connection.createStatement();//just added
                                   UpdateStmt.executeUpdate(ChangeRecord);
                                   JOptionPane.showMessageDialog(null, "You data has been successfully saved.","TIS: Operation completed", JOptionPane.INFORMATION_MESSAGE);
                              catch (Exception change_exception)
                                   change_exception.printStackTrace();
                                   JOptionPane.showMessageDialog (null, "Problem encountered while updating","TIS: Problem encountered",JOptionPane.ERROR_MESSAGE);
                    else
                         JOptionPane.showMessageDialog(null, "You chose to cancel the operation","Operation cancelled", JOptionPane.INFORMATION_MESSAGE);
                    }