NetBeans: Making a JTextField disapear

Question

I'm trying to make an interface for a login/register app and I have, in the email box (jTextField) an example as text (example@gmail.com) but when I run my program when I click that box to write my email on it, I have to delete my set text to write what I want.

What I thought to do was to create 2 jTextFields, the one behind not editable and the one forward where I'd put my text. So there are two things I don't know how to do:

1. put the forward jTextField invisible so we can see the behind one
2. make the text on the behind jTextField disappear when I click the front one

Thanks for trying the help.

Answer 1

Can easily done with FocusGained and focuseLost events

private void txtEmailFocusGained(java.awt.event.FocusEvent evt) {                                     
    if (txtEmail.getText().equals("example@example.com")) {
        txtEmail.setText(null);
    }
}     


private void txtEmailFocusLost(java.awt.event.FocusEvent evt) {                                   
   if ( txtEmail.getText().equals("")) {
        txtEmail.setText("example@example.com");
    }
}