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    <p>Try your hands on this code example, and do ask if something is not clear : </p> <pre><code>import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.text.*; public class TextHighlight { private JTextArea tarea; private JComboBox cbox; private JTextField lineField; private String[] colourNames = {"RED", "ORANGE", "CYAN"}; private Highlighter.HighlightPainter painter; private void createAndDisplayGUI() { final JFrame frame = new JFrame("Text HIGHLIGHT"); frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); JPanel contentPane = new JPanel(); contentPane.setBorder(BorderFactory.createTitledBorder( BorderFactory.createEmptyBorder(5, 5, 5, 5), "Highlighter JTextArea")); tarea = new JTextArea(10, 10); JScrollPane scrollPane = new JScrollPane(tarea); contentPane.add(scrollPane); JButton button = new JButton("HIGHLIGHT TEXT"); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { int selection = JOptionPane.showConfirmDialog( frame, getOptionPanel(), "Highlighting Options : ", JOptionPane.OK_CANCEL_OPTION , JOptionPane.PLAIN_MESSAGE); if (selection == JOptionPane.OK_OPTION) { System.out.println("OK Selected"); int lineNumber = Integer.parseInt(lineField.getText().trim()); try { int startIndex = tarea.getLineStartOffset(lineNumber); int endIndex = tarea.getLineEndOffset(lineNumber); String colour = (String) cbox.getSelectedItem(); if (colour == colourNames[0]) { System.out.println("RED Colour"); painter = new DefaultHighlighter.DefaultHighlightPainter(Color.RED); tarea.getHighlighter().addHighlight(startIndex, endIndex, painter); } else if (colour == colourNames[1]) { System.out.println("ORANGE Colour"); painter = new DefaultHighlighter.DefaultHighlightPainter(Color.ORANGE); tarea.getHighlighter().addHighlight(startIndex, endIndex, painter); } else if (colour == colourNames[2]) { System.out.println("CYAN Colour"); painter = new DefaultHighlighter.DefaultHighlightPainter(Color.CYAN); tarea.getHighlighter().addHighlight(startIndex, endIndex, painter); } } catch(BadLocationException ble) { ble.printStackTrace(); } } else if (selection == JOptionPane.CANCEL_OPTION) { System.out.println("CANCEL Selected"); } else if (selection == JOptionPane.CLOSED_OPTION) { System.out.println("JOptionPane closed deliberately."); } } }); frame.add(contentPane, BorderLayout.CENTER); frame.add(button, BorderLayout.PAGE_END); frame.pack(); frame.setLocationByPlatform(true); frame.setVisible(true); } private JPanel getOptionPanel() { JPanel panel = new JPanel(); panel.setLayout(new GridLayout(0, 2, 5, 5)); JLabel lineNumberLabel = new JLabel("Enter Line Number : "); lineField = new JTextField(10); JLabel colourLabel = new JLabel("Select One Colour : "); cbox = new JComboBox(colourNames); panel.add(lineNumberLabel); panel.add(lineField); panel.add(colourLabel); panel.add(cbox); return panel; } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new TextHighlight().createAndDisplayGUI(); } }); } } </code></pre> <p>Here is the output of it :</p> <p><img src="https://i.stack.imgur.com/LR9nG.jpg" alt="HIGHLIGHTER EXAMPLE"></p>
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    1. POHighlight one specific row/line in JTextArea
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    1. USnIcE cOw
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    1. This table or related slice is empty.
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    1. COthanks for your example code this is what I did instead. `code RectanglePainter red = new RectanglePainter( Color.RED ); try { f1.textarea.getHighlighter().addHighlight(f1.textarea.getLineStartOffset(iline), f1.textarea.getLineEndOffset(iline), red);// } catch (BadLocationException ex) { ex.printStackTrace(); } `
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      1. USJeffrey Odametey
 

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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.

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