统计JAVA代码程序 统计所有目录及其子目录

package com.compile; import java.io.*; public class CodeCounter { private static long normalLines = 0; //普通行 private static long commentLines = 0; //注释行 private static long whiteLines = 0; //空白行 private static long totalLines = 0; //总行数 public CodeCounter(String s) { File f = new File(s); tree(f); } public void tree(File f) { System.out.println("Path : " + f.getPath()); File[] childs = f.listFiles(); if(childs == null){ return; } for(int i = 0; i < childs.length; i++) { if(childs[i].isDirectory()) { //if(childs[i].getName().equals("System Volume Information")) { //continue; //}else { tree(childs[i]); //} }else if(childs[i].getName().matches(".*//.java$")) { parse(childs[i]); } } } public void parse(File f) { BufferedReader br = null; boolean comment = false; try { br = new BufferedReader(new FileReader(f)); String line = ""; while((line = br.readLine()) != null) { line = line.trim(); if(line.matches("^[//s&&[^//n]]*$")) { whiteLines ++; }else if(line.startsWith("/*") && !line.endsWith("*/")) { commentLines ++; comment = true; }else if(true == comment) { commentLines ++; if(line.endsWith("*/")) { comment = false; } }else if(line.startsWith("//")) { commentLines ++; }else { normalLines ++; } } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); }finally { if(br != null) { try { br.close(); br = null; } catch (IOException e) { e.printStackTrace(); } } } } public void p() { totalLines = normalLines + commentLines + whiteLines; System.out.println("normalLines: " + normalLines); System.out.println("commentLines: " + commentLines); System.out.println("whiteLines: " + whiteLines); System.out.println("totalLines: " + totalLines); } public static void main(String[] args) { CodeCounter c = new CodeCounter("E://JAVA"); c.p(); } }