//定义一个文件选择类，用于实现窗口文件选择
public class FileChooser extends JFrame implements ActionListener{  JButton open=null;  String path;//绘制文件选择框public FileChooser(){  open=new JButton("open");  this.add(open);  this.setBounds(400, 200, 100, 100);  this.setVisible(true);  this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  open.addActionListener(this);  }  @Override  //重写actionPerformed()方法，用于实现文件选择public void actionPerformed(ActionEvent e) {  // TODO Auto-generated method stub  JFileChooser jfc=new JFileChooser();  jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );  jfc.showDialog(new JLabel(), "选择");  File file=jfc.getSelectedFile();  path=file.getAbsolutePath(); }//返回文件路径public String rePath(){return path;}}  

try {BufferedReader bufferedReader = new BufferedReader(new FileReader(file));String coun = null;while ((coun = bufferedReader.readLine()) != null) {line++;if (coun.trim().length() == 0 || coun.trim().length() == 1) {nuline++;} else {for (int i = 0; i < coun.length() - 2; i++) {temp = coun.substring(i, i + 1);if (temp.equals("/")&& coun.substring(i + 1, i + 2).equals("/")) {annoline++;}}}}} catch (Exception e) {// TODO Auto-generated catch block
            e.printStackTrace();}codeline = line - nuline - annoline;System.out.println("代码行:" + codeline + "\n" + "空行:" + nuline + "\n"+ "注释行：" + annoline);

int ReStopList(File file) {String str = null;int stopword = 0;int k = 0;String reg1 = "\\s+|,+";try {BufferedReader bufferedReader = new BufferedReader(new FileReader(file));while ((str = bufferedReader.readLine()) != null) {String strc[] = str.split(reg1);for (String s : strc) {k = count_word(s);stopword += k;}}} catch (Exception e) {// TODO Auto-generated catch block
            e.printStackTrace();}return stopword;}