Lab Test 2 DAD

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class FileProcessingDemo {
    public static void main(String[] args) {
        // Create the frame
        JFrame frame = new JFrame("File Processing");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(500, 300);
        frame.setLayout(new FlowLayout());

        // Create the "Pick File" button
        JButton pickFileButton = new JButton("Pick File");
        JTextField filePathField = new JTextField(30);
        filePathField.setEditable(false);

        // Create the "Start Processing" button
        JButton startProcessingButton = new JButton("Start Processing");

        // Create the text field to display the key generation result
        JTextField keyGenerateField = new JTextField(30);
        keyGenerateField.setEditable(false);

        // Add action listener to the "Pick File" button
        pickFileButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // Create a file chooser
                JFileChooser fileChooser = new JFileChooser();

                // Show the open dialog
                int result = fileChooser.showOpenDialog(null);

                // Check if a file was selected
                if (result == JFileChooser.APPROVE_OPTION) {
                    // Get the selected file
                    String selectedFilePath = fileChooser.getSelectedFile().getAbsolutePath();
                    filePathField.setText(selectedFilePath);
                } else {
                    // Display a message if no file was selected
                    JOptionPane.showMessageDialog(frame, "No file selected");
                }
            }
        });

        // Add action listener to the "Start Processing" button
        startProcessingButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String filePath = filePathField.getText();
                if (!filePath.isEmpty()) {
                    // Create a new thread to process the file
                    new Thread(new Runnable() {
                        @Override
                        public void run() {
                            try {
                                // Use FileReader and BufferedReader to read the file
                                FileReader fileReader = new FileReader(filePath);
                                BufferedReader bufferedReader = new BufferedReader(fileReader);

                                String line;
                                int passwordCount = 0;
                                int bitp3123Count = 0;

                                // Read the file line by line
                                while ((line = bufferedReader.readLine()) != null) {
                                    if (line.contains("password")) {
                                        passwordCount++;
                                    }
                                    if (line.contains("bitp3123")) {
                                        bitp3123Count++;
                                    }
                                }

                                bufferedReader.close();

                                // Calculate the result
                                int result = passwordCount * bitp3123Count;

                                // Update the keyGenerateField with the result
                                SwingUtilities.invokeLater(new Runnable() {
                                    @Override
                                    public void run() {
                                        keyGenerateField.setText(String.valueOf(result));
                                    }
                                });

                            } catch (IOException ex) {
                                ex.printStackTrace();
                                JOptionPane.showMessageDialog(frame, "Error reading file: " + ex.getMessage());
                            }
                        }
                    }).start();
                } else {
                    JOptionPane.showMessageDialog(frame, "Please select a file first.");
                }
            }
        });

        // Add components to the frame
        frame.add(pickFileButton);
        frame.add(filePathField);
        frame.add(startProcessingButton);
        frame.add(keyGenerateField);

        // Make the frame visible
        frame.setVisible(true);
    }
}