try {
StyledDocument doc = new DefaultStyledDocument();
doc.insertString(0, "This is the beginning text", null);
doc.insertString(doc.getLength(), "\nInserting new line at end of doc", null);
MutableAttributeSet attrs = new SimpleAttributeSet();
StyleConstants.setBold(attrs, true);
doc.insertString(5, "This is bold text after 'this'", attrs);
} catch (BadLocationException ex) {
//handle error
}
DefaultStyledDocuments will probably be your most used resources. They can be created directly, and subclass the StyledDocument
abstract class.