Java jframe

    private void btnRegisterActionPerformed(java.awt.event.ActionEvent evt) {
        String name = txtName.getText();
        String tpno = txtTPNO.getText();
        String role = cmbRole.getSelectedItem().toString();
        String tel = txtTel.getText();
        String pass = txtPassword.getText();
        String gender;


        // Validation of the information input.
        if (name.equals("") || tpno.equals("") || tel.equals("") || pass.equals("")){
            JOptionPane.showMessageDialog(null, "Please filed in all information!");
        }else{
            if (rbtnM.isSelected())
                gender = "Male";
            else
                gender = "Female";
            String rgs_record = name + "\n" + tpno + "\n" + role + "\n" + gender + "\n" + tel + "\n" + pass + "\n" +"\n";
            File rgs = new File("Registration.txt");
            if(rgs.exists()){
                JOptionPane.showMessageDialog(null, "File already exists, saving record now.");
                try{
                    BufferedReader reader;
                    reader = new BufferedReader(new FileReader("Registration.txt"));
                    String line = reader.readLine();
                    while(line != null){
                        line = reader.readLine();
                        System.out.println(line);
                        if(line.contains(tpno)) {
                            JOptionPane.showMessageDialog(null, "TPNO exists. Please try again");
                            break;
                        }else{
                            FileWriter rgsWrite = null;
                            try{
                                rgsWrite = new FileWriter(rgs,true);
                            }catch (IOException ex) {
                                Logger.getLogger(Registration_Form.class.getName()).log(Level.SEVERE, null, ex);
                            }
                            BufferedWriter rgsBFW = new BufferedWriter(rgsWrite);
                            try{
                                rgsBFW.write(rgs_record);
                                rgsBFW.close();
                                rgsWrite.close();
                            }catch (IOException ex) {
                                Logger.getLogger(Registration_Form.class.getName()).log(Level.SEVERE, null, ex);
                            }
                            JOptionPane.showMessageDialog(null,"Record successfully saved.");
                            reader.close();
                            break;
                        }
                    }
                }catch(FileNotFoundException e) {
                }
            }else{
                JOptionPane.showMessageDialog(null, "File not found! Creating now");
                try{
                    rgs.createNewFile();
                    System.out.println("File created: " + rgs.getName());
                    FileWriter rgsWrite = null;

                    try{
                        rgsWrite = new FileWriter(rgs,true);
                    }catch(IOException ex){
                        Logger.getLogger(Registration_Form.class.getName()).log(Level.SEVERE, null, ex);
                    }
                    BufferedWriter rgsBFW = new BufferedWriter(rgsWrite);
                    try{
                        rgsBFW.write(rgs_record);
                        rgsBFW.close();
                        rgsWrite.close();
                    }catch(IOException ex){
                        Logger.getLogger(Registration_Form.class.getName()).log(Level.SEVERE, null, ex);
                    }
                    JOptionPane.showMessageDialog(null, "Record successfully saved.");
                }catch(IOException ex){
                    Logger.getLogger(Registration_Form.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }