MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

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);

    }
}