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Peter Chan
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Issue to code

How to resolve issue below in Eclipse?
* EclipseJavaProgramming Languages-OtherLinux Distributions

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8/22/2022 - Mon
Jeffrey Dake

Looks like show forgot to import some classes. If you go to the eclipse “problems” view, it will give you more information about the problem.
Peter Chan

Sorry, which packages should be imported to resolve it?

For instance, I see that

ResultSet cannot be resolved to a type

is the error on line below. How to resolve it?

       ResultSet rs = stmt.executeQuery(sql);

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Peter Chan

How to disallow to edit the textarea below?
public class Main {
      public static void main( String[] args )
                  final JFrame frame = new JFrame( "Information" );
                  final JPanel mainPanel = new JPanel();
                  mainPanel.setPreferredSize ( new Dimension( 800, 700 ) );
                  frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
                  frame.getContentPane().add ( mainPanel );
                  frame.setLocationRelativeTo( null );

                  // JTextArea supports a subset of HTML and with that you
                  // can change fonts within the text.
                  final JTextArea textArea = new JTextArea(
                              "This is an editable JTextArea. "
                                          + "A text area is a \"plain\" text component, "
                                          + "which means that although it can display text "
                                          + "in any font, all of the text is in the same font." );
                  textArea.setFont( new Font( "Serif", Font.BOLD, 12 ) );
                  textArea.setLineWrap( true );
                  textArea.setWrapStyleWord( true );

                  mainPanel.add( textArea );

                  frame.setVisible( true );      // should be last

            catch( final Exception e )
                  final JPanel panel2 = new JPanel();

                  JOptionPane.showMessageDialog( panel2, e, "Error",
                              JOptionPane.ERROR_MESSAGE );


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