分享一个统计代码量的小程序

直接可以运行：选择好src文件夹，直接点“统计行数”就可以啦

import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
 
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.JTextField;
import javax.swing.border.EmptyBorder;
 
@SuppressWarnings("serial")
public class CountRows extends JFrame {
 
    private JPanel contentPane;
    private JTextField absolutePath;
 
    private int num; // 用来存储行数的
    private String path;
 
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    CountRows frame = new CountRows();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
 
    /**
     * Create the frame.
     */
    public CountRows() {
        setTitle("u7EDFu8BA1u4EE3u7801u884Cu6570");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 384, 185);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);
 
        absolutePath = new JTextField();
        absolutePath.setBounds(67, 39, 200, 31);
        contentPane.add(absolutePath);
        absolutePath.setColumns(10);
 
        JLabel lblSrc = new JLabel("srcu8DEFu5F84");
        lblSrc.setFont(new Font("宋体", Font.PLAIN, 15));
        lblSrc.setBounds(10, 39, 64, 31);
        contentPane.add(lblSrc);
 
        JButton result = new JButton("u7EDFu8BA1u884Cu6570");
        result.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                String path = absolutePath.getText();
                File file = new File(path);
                try {
                    nums(file);
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
                JOptionPane
                        .showMessageDialog(contentPane, "代码一共有:" + num + "行");
            }
        });
        result.setFont(new Font("宋体", Font.PLAIN, 14));
        result.setBounds(48, 100, 93, 37);
        contentPane.add(result);
 
        JButton exit = new JButton("u9000u51FA");
        exit.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.exit(1);
            }
        });
        exit.setFont(new Font("宋体", Font.PLAIN, 14));
        exit.setBounds(270, 100, 93, 37);
        contentPane.add(exit);
 
        JButton view = new JButton("u6D4Fu89C8");
        view.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                JFileChooser jfc = new JFileChooser("c:\");
                jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                jfc.setDialogTitle("请选择要统计的src文件夹");
                int result = jfc.showOpenDialog(contentPane);
                if (result == JFileChooser.APPROVE_OPTION) {
                    path = jfc.getSelectedFile().getAbsolutePath();
                    absolutePath.setText(path);
                }
            }
        });
        view.setBounds(277, 36, 81, 37);
        contentPane.add(view);
 
    }
 
    /**
     * 写一个方法，用来计算代码量
     * 
     * @throws IOException
     */
    private void nums(File file) throws IOException {
 
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            for (int i = 0; i < files xss=removed xss=removed xss=removed>  登录后复制   
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