How to use

DefaultStyledDocument

in

javax.swing.text

private void buildContentPanel() {
 editorPane = new JEditorPane ();
 editorPane.setContentType("text/rtf");
 editorPane.addKeyListener(new InputListener());
 //    defaultAttrSet = ((StyledEditorKit)editorPane.getEditorKit()).getInputAttributes();
 StyleConstants.setFontFamily(defaultAttrSet, "Lucinda Sans");
 Document doc = new DefaultStyledDocument();
 editorPane.setDocument(doc);
 try {
  doc.insertString(0, initText, defaultAttrSet);
 } catch (Exception ex) {
  throw new RuntimeException(ex);
 }
 JScrollPane scrollPane = new JScrollPane(editorPane);
 frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
 editorPane.setEditable(true);
}

String text = null;
try {
 text = doc.getText(0, doc.getLength());
} catch (Exception e) {
 throw new RuntimeException(e);
  try {
   String entity = finalText.substring(start, end);
   doc.setCharacterAttributes(start, entity.length(), attSet, false);
  } catch (Exception ex) {
   throw new RuntimeException(ex);

 DefaultStyledDocument document = new DefaultStyledDocument();
JTextPane textpane = new JTextPane(document);
StyleContext context = new StyleContext();
// build a style
Style style = context.addStyle("test", null);
// set some style properties
StyleConstants.setForeground(style, Color.BLUE);
// add some data to the document
document.insertString(0, "", style);

private void removeTags() {
 if (editorPane.getContentType().equals("text/html")) {
  editorPane.setText(htmlContents);
  editorPane.revalidate();
  editorPane.repaint();
 } else {
  DefaultStyledDocument doc = (DefaultStyledDocument)editorPane.getDocument();
  SimpleAttributeSet attr = new SimpleAttributeSet();
  StyleConstants.setForeground(attr, Color.BLACK);
  StyleConstants.setBackground(attr, Color.WHITE);
  doc.setCharacterAttributes(0, doc.getLength(), attr, false);
 }
 saveTaggedAs.setEnabled(false);
}

  styledDocument.setCharacterAttributes(matchEnd,
                     offset - matchEnd,
                     defaultStyle,
styledDocument.setCharacterAttributes(offset,
                   matchEnd - offset,
                   style, true);
if (styledDocument.getParagraphElement(offset).getStartOffset() !=
  styledDocument.getParagraphElement(matchEnd).getStartOffset()) {
styledDocument.setCharacterAttributes(matchEnd,
                   checkPoint - matchEnd,
                   defaultStyle,

styledDocument.getText(0, styledDocument.getLength(), segment);
  length = styledDocument.getLength();

private JEditorPane editorPane = new JEditorPane();
private JComboBox<Integer> fontBox = new JComboBox<Integer>(ITEMS);
private StyledDocument doc = new DefaultStyledDocument();
private StyledEditorKit styledEditorKit = new StyledEditorKit();
 editorPane.setDocument(doc);
 editorPane.setEditorKit(styledEditorKit);
 JScrollPane scrollpane = new JScrollPane(editorPane);
 scrollpane.setPreferredSize(new Dimension(500, 400));
 JPanel comboPanel = new JPanel();
 comboPanel.add(fontBox);
 setLayout(new BorderLayout());
 add(scrollpane, BorderLayout.CENTER);
 add(comboPanel, BorderLayout.SOUTH);
 JFrame frame = new JFrame("EditorPaneFun");
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame.getContentPane().add(new EditorPaneFun());
 frame.pack();
 frame.setLocationRelativeTo(null);
 frame.setVisible(true);

JFrame frame = new JFrame(TestDifferentStyles.class.getSimpleName());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
StyledDocument doc = new DefaultStyledDocument();
JTextPane textPane = new JTextPane(doc);
textPane.setText("Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has "
    + "been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of "
frame.add(new JScrollPane(textPane));
frame.setSize(500, 400);
frame.setVisible(true);

JFrame f = new JFrame("Styles Example 1");
final DefaultStyledDocument doc = new DefaultStyledDocument(sc);
JTextPane pane = new JTextPane(doc);
        doc.setParagraphAttributes(0, 1, heading2Style, false);
      } catch (BadLocationException e) {
f.getContentPane().add(new JScrollPane(pane));
f.setSize(400, 300);
f.setVisible(true);

JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(new Dimension(600,200));
frame.getContentPane().setBackground(Color.BLACK);
panel.setLayout(new GridLayout(1, 2));
panel.setBackground(Color.BLACK);
frame.add(panel);
StyledDocument document = new DefaultStyledDocument(context);
JTextPane area = new JTextPane(document);
panel.add(area);
frame.setVisible(true);

  public void run() {
    JFrame frame = initgui();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
JFrame frame = new JFrame("Test");
JPanel panel = new JPanel();
StyledDocument doc = (StyledDocument) new DefaultStyledDocument();
JTextPane textpane = new JTextPane(doc);
textpane.setText("Test");
javax.swing.text.Style style = textpane.addStyle("Red", null);
StyleConstants.setForeground(style, Color.RED);
doc.setCharacterAttributes(0, 1, textpane.getStyle("Red"), true); 
panel.add(textpane);
frame.add(panel);
return frame;

setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(400, 400);
setLocationRelativeTo(null);
      if (wordR == after || String.valueOf(text.charAt(wordR)).matches("\\W")) {
        if (text.substring(wordL, wordR).matches("(\\W)*(private|public|protected)"))
          setCharacterAttributes(wordL, wordR - wordL, attr, false);
        else
          setCharacterAttributes(wordL, wordR - wordL, attrBlack, false);
        wordL = wordR;
      setCharacterAttributes(before, after - before, attr, false);
    } else {
      setCharacterAttributes(before, after - before, attrBlack, false);
JTextPane txt = new JTextPane(doc);
txt.setText("public class Hi {}");
add(new JScrollPane(txt));
setVisible(true);

JFrame f = new JFrame("Cool Table");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(new JScrollPane(t));
f.pack();
f.setVisible(true);
if(data[r] instanceof String) {
  try{
    DefaultStyledDocument doc = new DefaultStyledDocument();
    doc.insertString(0, data[r].toString(), null);
    data[r] = doc;
private static Border etchedBorder = BorderFactory.createEtchedBorder();
private JTextComponent styledRenderer = new JTextPane();
private JTextPane styledEditor = new JTextPane();
  editorComponent = new JScrollPane(styledEditor);
      styledEditor.setDocument((Document)val);

this.styledDocument = new DefaultStyledDocument();
this.styledDocument.insertString(0, displayText(), null);
addStylesToDocument(styledDocument);
JFrame frame = new JFrame("JTextPane Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationByPlatform(true);
textPane = new JTextPane(styledDocument);
textPane.addCaretListener(new SelectedText());
textPane.setPreferredSize(new Dimension(250, 125));
JScrollPane scrollPane = new JScrollPane(textPane);
frame.add(scrollPane);
frame.pack();
frame.setVisible(true);

this.document = new DefaultStyledDocument();
Runnable runnable = new Runnable() {
  @Override
frame = new JFrame();
frame.setTitle("Huge Text");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new JScrollPane(textArea));
frame.setSize(400, 350);
frame.setLocationRelativeTo(null);
frame.setVisible(true);

JTextPane textPane = new JTextPane(new DefaultStyledDocument());
((AbstractDocument) textPane.getDocument()).setDocumentFilter(new HighlightDocumentFilter(textPane));
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new JScrollPane(textPane));
frame.pack();

JFrame frame = new JFrame();
DefaultStyledDocument document = new DefaultStyledDocument();
JTextPane pane = new JTextPane(document);
JPanel mainPanel = new JPanel();
JButton button = new JButton("Button");
button.setPreferredSize(new Dimension(100, 40));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pane.setPreferredSize(new Dimension(200, 200));
mainPanel.add(button);
frame.getContentPane().add(pane, BorderLayout.CENTER);
frame.getContentPane().add(mainPanel, BorderLayout.WEST);
StyleContext context = new StyleContext();
frame.pack();
frame.setVisible(true);

@Override
public void run() {
  JFrame frame = new JFrame("Colored Text");
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  StyledDocument doc = new DefaultStyledDocument();
  JTextPane textPane = new JTextPane(doc);
  textPane.setText("Different Colored Text");
  for (int i = 0; i < textPane.getDocument().getLength(); i++) {
    SimpleAttributeSet set = new SimpleAttributeSet();
    StyleConstants.setForeground(set,
  frame.add(new JScrollPane(textPane));
  frame.pack();
  frame.setVisible(true);

add(leftBox);
DefaultStyledDocument pd = new DefaultStyledDocument();
SimpleAttributeSet sas = new SimpleAttributeSet();
StyleConstants.setSpaceBelow(sas, spaceBelow);
pd.setParagraphAttributes(0, pd.getLength(), sas, false);
modifiedTA= new JTextPane(pd);  
add(modifiedTA);
final JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new LineSpacingExample());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);

  StyleConstants.setFontFamily(style, "Helvetica");
  printStyleAttributes(style);
  document.setCharacterAttributes(0, document.getLength(), style, true);
});
JFrame frame = new JFrame("Styling example");
JPanel contentPane = new JPanel();
contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.Y_AXIS));
contentPane.add(editorPane);
contentPane.add(changeStyleButton);
frame.setContentPane(contentPane);
frame.setSize(300,300);
frame.setLocationRelativeTo(null);
frame.setVisible(true);