import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.ElementIterator;
public class MainClass {
public static void main(final String args[]) {
JFrame frame = new JFrame("Element Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JTextArea textArea = new JTextArea();
JScrollPane scrollPane = new JScrollPane(textArea);
JButton button = new JButton("Show Elements");
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
Document document = textArea.getDocument();
ElementIterator iterator = new ElementIterator(document);
Element element = iterator.first();
while (element != null) {
System.out.println(element.getStartOffset());
element = iterator.next();
}
}
};
button.addActionListener(actionListener);
frame.add(scrollPane, BorderLayout.CENTER);
frame.add(button, BorderLayout.SOUTH);
frame.setSize(250, 250);
frame.setVisible(true);
}
}