Databases
StackOverflow2013
Postsdbo
POJava Validation
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POJava Validation
    primarykey
    data
    text
    <p>I have a Form with a few textfields and a save button. When the buttton is pressed, it should be checked whether certain textfields are empty, and if those are empty, then an error message should be displayed, else whatever job needed should be performed. i have written the code for that, but whether the fields are empty or not, it performs the main tasks. Could someone advise please? thanks</p> <pre><code>final JButton button = new JButton("Save"); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { if(textField_2.equals("") || textField_3.equals("") || textField_4.equals("") || textField_5.equals("") || textField_6.equals("") || textArea.equals("") || textField_7.equals("")) { JOptionPane.showMessageDialog(frmModifyBooking, "Please fill in all fields indicated with a star (*)."); } else { try { String sql = "UPDATE vacation SET `StaffID` =?, `From` =?, `To` =?, `TotalDays` =?, `VacationType` =?, `Notes` =?, `Signature` =?, `Date` =? WHERE VacationID = ?"; PreparedStatement prest = con.prepareStatement(sql); prest.setString(1, textField_1.getText()); prest.setString(2, textField_2.getText()); prest.setString(3, textField_3.getText()); prest.setString(4, textField_4.getText()); prest.setString(5, textField_5.getText()); prest.setString(6, textArea.getText()); prest.setString(7, textField_6.getText()); prest.setString(8, textField_7.getText()); prest.setString(9, txtAUniqueStudent.getText()); prest.executeUpdate(); JOptionPane.showMessageDialog(frmModifyBooking, "Record has been updated."); } catch (SQLException e) { //System.out.println("Record couldn't be added!"); e.printStackTrace(); JOptionPane.showMessageDialog(frmModifyBooking, "Record couldn't be updated. Please try again."); } } } }); button.setBounds(280, 402, 89, 23); panel_1.add(button); </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USftr
    1. USPita
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POJava Validation
      1. This table or related slice is empty.
      1. VTDownMod
    2. VO
      singulars
      1. POJava Validation
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. CO"Could someone advise please?" -- Advise what?
      singulars
      1. POJava Validation
      1. USpaislee
    2. COWhat are textField_x variables? If they are the TextField references, those conditions are invalid.
      singulars
      1. POJava Validation
      1. USDan
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload