Create powerful Word Processor using this Java code

				
					import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.text.*;
import javax.swing.event.*;
import java.io.*;
import java.util.*;
import java.net.*;

public class WordProcessor
{
    JFrame frame;
    JPanel panel;
    JTextPane textPane;
    JScrollPane scrollPane;
    JPopupMenu menu;
    JMenuBar menuBar;
    JButton btnBold, btnItalic, btnUnderline, btnLeft, btnCenter, btnRight, btnFont, btnColor;
    JFileChooser fileChooser;
    File file;
    String fontName;
    int fontSize;
    Color fontColor;

    public static void main(String[] args)
    {
        new WordProcessor();
    }

    public WordProcessor()
    {
        // Create the frame
        frame = new JFrame("Word Processor");
        frame.setSize(800, 600);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Create the main panel
        panel = new JPanel(new BorderLayout());
        frame.add(panel);

        // Create the textPane
        textPane = new JTextPane();
        textPane.setBackground(Color.WHITE);
        textPane.setSelectionColor(Color.BLUE);
        textPane.setSelectedTextColor(Color.WHITE);

        // Create the scrollpane
        scrollPane = new JScrollPane(textPane);
        panel.add(scrollPane, BorderLayout.CENTER);

        // Create the popup menu
        menu = new JPopupMenu();
        menu.add(new JMenuItem("Cut")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textPane.cut();
            }
        });
        menu.add(new JMenuItem("Copy")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textPane.copy();
            }
        });
        menu.add(new JMenuItem("Paste")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textPane.paste();
            }
        });
        textPane.addMouseListener(new MouseAdapter() {
            public void mouseReleased(MouseEvent e) {
                if (e.isPopupTrigger()) {
                    menu.show(e.getComponent(), e.getX(), e.getY());
                }
            }
        });

        // Create the menubar
        menuBar = new JMenuBar();
        menuBar.add(new JMenu("File")).add(new JMenuItem("New")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textPane.setText("");
            }
        });
        menuBar.add(new JMenuItem("Open")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                fileChooser = new JFileChooser();
                int returnVal = fileChooser.showOpenDialog(frame);
                if (returnVal == JFileChooser.APPROVE_OPTION) {
                    try {
                        file = fileChooser.getSelectedFile();
                        FileInputStream fis = new FileInputStream(file);
                        byte[] data = new byte[(int) file.length()];
                        fis.read(data);
                        fis.close();
                        String str = new String(data, "UTF-8");
                        textPane.setText(str);
                    } catch (IOException ex) {
                        ex.printStackTrace();
                    }
                }
            }
        });
        menuBar.add(new JMenuItem("Save")).addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                if (file == null) {
                    fileChooser = new JFileChooser();
                    int returnVal = fileChooser.showSaveDialog(frame);
                    if (returnVal == JFileChooser.APPROVE_OPTION) {
                        file = fileChooser.getSelectedFile();
                    }
                }
                try {
                    FileOutputStream fos = new FileOutputStream(file);
                    String str = textPane.getText();
                    fos.write(str.getBytes());
                    fos.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        });
        frame.setJMenuBar(menuBar);

        // Create the toolbar
        JToolBar toolBar = new JToolBar();
        btnBold = new JButton("B");
        btnBold.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setBold(attr, !StyleConstants.isBold(attr));
                doc.setCharacterAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnItalic = new JButton("I");
        btnItalic.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setItalic(attr, !StyleConstants.isItalic(attr));
                doc.setCharacterAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnUnderline = new JButton("U");
        btnUnderline.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setUnderline(attr, !StyleConstants.isUnderline(attr));
                doc.setCharacterAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnLeft = new JButton("Left");
        btnLeft.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setAlignment(attr, StyleConstants.ALIGN_LEFT);
                doc.setParagraphAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnCenter = new JButton("Center");
        btnCenter.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setAlignment(attr, StyleConstants.ALIGN_CENTER);
                doc.setParagraphAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnRight = new JButton("Right");
        btnRight.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setAlignment(attr, StyleConstants.ALIGN_RIGHT);
                doc.setParagraphAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnFont = new JButton("Font");
        btnFont.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                FontDialog fontDialog = new FontDialog(frame, fontName, fontSize);
                fontDialog.setVisible(true);
                fontName = fontDialog.getFontName();
                fontSize = fontDialog.getFontSize();
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setFontFamily(attr, fontName);
                StyleConstants.setFontSize(attr, fontSize);
                doc.setCharacterAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        btnColor = new JButton("Color");
        btnColor.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                ColorDialog colorDialog = new ColorDialog(frame, fontColor);
                colorDialog.setVisible(true);
                fontColor = colorDialog.getColor();
                StyledDocument doc = (StyledDocument) textPane.getDocument();
                MutableAttributeSet attr = new SimpleAttributeSet();
                StyleConstants.setForeground(attr, fontColor);
                doc.setCharacterAttributes(textPane.getSelectionStart(), textPane.getSelectionEnd() - textPane.getSelectionStart(), attr, true);
            }
        });
        toolBar.add(btnBold);
        toolBar.add(btnItalic);
        toolBar.add(btnUnderline);
        toolBar.add(btnLeft);
        toolBar.add(btnCenter);
        toolBar.add(btnRight);
        toolBar.add(btnFont);
        toolBar.add(btnColor);
        panel.add(toolBar, BorderLayout.NORTH);

        // Show the frame
        frame.setVisible(true);
    }
}