简单低级代码行数统计

package test;import java.io.File;import java.io.FileInputStream;import java.io.InputStream;import java.io.InputStreamReader;import java.io.LineNumberReader;public class Test {private static int sum = 0;public static void main(String[] args) throws Exception{File f = new File("E:\\src");listFile(f);System.out.println("代码一共:"+sum+"行");}public static void listFile(File file) throws Exception{if(file.isDirectory()){File list[] = file.listFiles();for(File ff:list){listFile(ff);if(ff.getPath().endsWith(".java")){sum+=number(ff);}}}}public static int number(File file) throws Exception{InputStream is = new FileInputStream(file);LineNumberReader lnr = new LineNumberReader(new InputStreamReader(is,"UTF-8"));String line = null;int count = 0;while((line=lnr.readLine())!=null){if(!line.equals("")){count++;}}return count;}}