用java语言实现，文件加密、粉碎类；要求该程序具有图形用户界面，给出完整源码，并且提示部分和注释部分用中文提示

这是一个使用Java语言实现的文件加密和粉碎类程序，具有图形用户界面。以下是完整的源代码和注释：

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;

public class FileEncrypter extends JFrame implements ActionListener {
    private static final long serialVersionUID = 1L;
    private JTextField inputFileTF, outputFileTF;
    private JButton encryptBtn, shredBtn, browseInputBtn, browseOutputBtn;
    private JFileChooser fileChooser;
    private JLabel statusLbl;

    public FileEncrypter() {
        super("文件加密/粉碎");
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLayout(new GridLayout(4, 1));

        // 创建文件选择器
        fileChooser = new JFileChooser();
        fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);

        // 创建输入文件路径文本框和浏览按钮
        JPanel inputPanel = new JPanel(new FlowLayout());
        inputPanel.add(new JLabel("输入文件路径："));
        inputFileTF = new JTextField(30);
        inputPanel.add(inputFileTF);
        browseInputBtn = new JButton("浏览");
        browseInputBtn.addActionListener(this);
        inputPanel.add(browseInputBtn);
        add(inputPanel);

        // 创建输出文件路径文本框和浏览按钮
        JPanel outputPanel = new JPanel(new FlowLayout());
        outputPanel.add(new JLabel("输出文件路径："));
        outputFileTF = new JTextField(30);
        outputPanel.add(outputFileTF);
        browseOutputBtn = new JButton("浏览");
        browseOutputBtn.addActionListener(this);
        outputPanel.add(browseOutputBtn);
        add(outputPanel);

        // 创建加密和粉碎按钮
        JPanel buttonPanel = new JPanel(new FlowLayout());
        encryptBtn = new JButton("加密");
        encryptBtn.addActionListener(this);
        buttonPanel.add(encryptBtn);
        shredBtn = new JButton("粉碎");
        shredBtn.addActionListener(this);
        buttonPanel.add(shredBtn);
        add(buttonPanel);

        // 创建状态标签
        statusLbl = new JLabel("就绪");
        add(statusLbl);

        pack();
        setLocationRelativeTo(null); // 将窗口居中
        setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == browseInputBtn) { // 点击输入文件浏览按钮
            int returnVal = fileChooser.showOpenDialog(this);
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                inputFileTF.setText(fileChooser.getSelectedFile().getAbsolutePath());
            }
        } else if (e.getSource() == browseOutputBtn) { // 点击输出文件浏览按钮
            int returnVal = fileChooser.showSaveDialog(this);
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                outputFileTF.setText(fileChooser.getSelectedFile().getAbsolutePath());
            }
        } else if (e.getSource() == encryptBtn) { // 点击加密按钮
            String inputPath = inputFileTF.getText();
            String outputPath = outputFileTF.getText();
            try {
                encryptFile(inputPath, outputPath);
                statusLbl.setText("加密成功");
            } catch (IOException ex) {
                ex.printStackTrace();
                statusLbl.setText("加密失败");
            }
        } else if (e.getSource() == shredBtn) { // 点击粉碎按钮
            String inputPath = inputFileTF.getText();
            try {
                shredFile(inputPath);
                statusLbl.setText("粉碎成功");
            } catch (IOException ex) {
                ex.printStackTrace();
                statusLbl.setText("粉碎失败");
            }
        }
    }

    // 加密文件
    private void encryptFile(String inputPath, String outputPath) throws IOException {
        FileInputStream in = new FileInputStream(inputPath);
        FileOutputStream out = new FileOutputStream(outputPath);
        byte[] buffer = new byte[1024];
        int bytesRead;
        while ((bytesRead = in.read(buffer)) != -1) {
            for (int i = 0; i < bytesRead; i++) {
                buffer[i] = (byte) ~buffer[i]; // 取反
            }
            out.write(buffer, 0, bytesRead);
        }
        in.close();
        out.close();
    }

    // 粉碎文件
    private void shredFile(String filePath) throws IOException {
        RandomAccessFile file = new RandomAccessFile(filePath, "rw");
        byte[] buffer = new byte[1024];
        long length = file.length();
        long n = length / 1024;
        int r = (int) (length % 1024);
        for (long i = 0; i < n; i++) {
            file.seek(i * 1024);
            file.write(buffer);
        }
        if (r > 0) {
            file.seek(n * 1024);
            file.write(buffer, 0, r);
        }
        file.setLength(0);
        file.close();
    }

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