统计java代码小工具

最近做一个项目，eclipse版本没有带统计代码行数的插件，公司还不能随便上网。所以在网上找了找资料，发现用java做的多少都稍有问题，便自己改了改，实现如下：统计代码行数：包括java，jsp，js文件。统计可以按照单个文件统计，也可以按照目录统计（包含子目录）。
以下是运行后的截图和部分代码。


package codeComprehensive;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
public class CountCodes extends JFrame{
private static final long serialVersionUID = 1L;
    private long codeLines = 0; // 单个文件的代码行数
    private long commentLines = 0; // 单个文件的注释行数
    private long allBlankLines = 0; // 单个文件的空行行数
    private long allLines = 0; // 单个文件的总行数
    private long allCodeLines = 0; // 总代码行数
    private long allCcommentLines = 0; // 总的注释行数
    private long blankLines = 0; // 总空行行数
    private long allFilesLines =0;// 多个文件的总行数
    private File fileName;
    
    private JLabel pathLabel;
    private JTextField pathField;
    private JButton openButton;
    private JButton clearButton;
    private JPanel panelNorth, panelSouth, clearPanel;
    private ArrayList<File> list = new ArrayList<File> ();
    private String[] tableHeader = {"File Name", "Code Lines", "Comment Lines", "Blank Lines", "All Lines"};
    private Vector<String> vectorHeader = new Vector<String> ();
    // 统计结果结合
    private Vector<Vector> values = new Vector<Vector> ();
    // 综合统计行数据
    private Vector<String> allValues = new Vector<String> ();
    private JTable table;
    private DefaultTableModel tableModel;
    private JScrollPane scrollPane;
    public CountCodes(){
        super("Welcome to use Count Codes --wujingyong");
        pathLabel = new JLabel("File Directory : ");
        pathField = new JTextField(100);
        pathField.setEditable(false);
        openButton = new JButton("Open");
        clearButton = new JButton("Clear");
        openButton.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                     ////////每次统计前，先清空之前的统计结果/////////
                     int a = tableModel.getRowCount();
                     while(a>0)
                       {  
                        a--;
                        tableModel.removeRow(a);
                       }
                    
                     ////////////
                        openFile();
                        
                        if (fileName == null) {
                            return;
                        }
                     // 如果清空了统计记录，则重新统计；否则包含之前的统计记录
                        if (tableModel.getRowCount() == 0) {
                         list = new ArrayList<File>();
                 }
                        analysisFileOrDir(fileName);
                      
                        for(File file : list){
                            analyze(file);
                        }  
                        ////////////追加最后一行总数的统计//////////////////
                        if (values.size()!=0 ) {
                         // 清空之前的最后统计数据
                         allValues = new Vector<String>();
                         // 追加本次统计的最后综合数据
                          allValues.add("Lines SUM ：");
                                 allValues.add(String.valueOf(allCodeLines));
                                 allValues.add(String.valueOf(allCcommentLines));
                                 allValues.add(String.valueOf(allBlankLines));
                                 allFilesLines = allCodeLines + allCcommentLines + allBlankLines;
                                 allValues.add(String.valueOf(allFilesLines));
                         values.add(allValues);
                         // 统计后，清空各项综合统计数据
                          zeroAllLines();
                        
                  }
                        //////////////////////////////
                    }
                });
        clearButton.addActionListener(new ActionListener(){
                    public void actionPerformed(ActionEvent event){
                     int a = tableModel.getRowCount();
                     while(a>0)
                       {  
                        a--;
                        tableModel.removeRow(a);
                       }
                    }
                });
        panelNorth = new JPanel();
        clearPanel = new JPanel();
        clearPanel.add(clearButton);
        clearPanel.add(openButton);
        panelNorth.setLayout(new BorderLayout());
        panelNorth.add(pathLabel, BorderLayout.WEST);
        panelNorth.add(pathField, BorderLayout.CENTER);
        panelNorth.add(clearPanel, BorderLayout.EAST);
        for (int i=0; i<tableHeader.length; i++) {
            vectorHeader.add(tableHeader);
        }
        // 追加统计结果
        tableModel = new DefaultTableModel(values, vectorHeader);
        
        table = new JTable(tableModel);
        
        scrollPane = new JScrollPane(table);
        
        panelSouth = new JPanel();
        panelSouth.setLayout(new BorderLayout());
        panelSouth.add(scrollPane, BorderLayout.CENTER);
        
        setLayout(new BorderLayout());
        add(panelNorth, BorderLayout.NORTH);
        add(panelSouth, BorderLayout.CENTER);
        
        setBounds(222,200,512,400);
        setVisible(true);
    }
    
    public static void main(String args[]){
        CountCodes countCodes = new CountCodes();
        countCodes.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }