Maison > Article > Applet WeChat > Partagez un petit programme qui compte la quantité de code
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("\u7EDF\u8BA1\u4EE3\u7801\u884C\u6570"); 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("src\u8DEF\u5F84"); lblSrc.setFont(new Font("宋体", Font.PLAIN, 15)); lblSrc.setBounds(10, 39, 64, 31); contentPane.add(lblSrc); JButton result = new JButton("\u7EDF\u8BA1\u884C\u6570"); 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("\u9000\u51FA"); 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("\u6D4F\u89C8"); 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.length; i++) { File f = files[i]; nums(f); } } else { BufferedReader br = new BufferedReader(new FileReader(file)); while (br.readLine() != null) { num++; } br.close(); } } }
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