java 计算源码的行数

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;

public class GetSourceCodeSumLine {
   /**
   * @param args
   */
   public static void main(String[] args) {
// 方法1
       String JavaSourceCodeDir[] = { "E:\\...\\src"， "G:\\...\\src" };
       long codeCountLine = getJavaSourceCodeCountLine(JavaSourceCodeDir);

// 方法2
//       ArrayList<String> JavaSourceCodeDirs = new ArrayList<String>();
//        JavaSourceCodeDirs.add("G:\\workspace\\...\\src");
//        JavaSourceCodeDirs.add("G:\\workspace\\...\\src");
//       long codeCountLine = getJavaSourceCodeCountLine(JavaSourceCodeDirs);

       System.out.println(JavaSourceCodeDir.toString() + ":共有 "
               + codeCountLine + " 行java源代码");
   }


   public static long getJavaSourceCodeCountLine(String[] JavaSourceCodeDirs) {
       long codeCountLine = 0;
       for (String dirPath : JavaSourceCodeDirs) {
           File fl = new File(dirPath);
           if (fl.exists()) {
               codeCountLine += getJavaFileCountLine(fl);
           }
       }
       return codeCountLine;
   }

   public static long getJavaSourceCodeCountLine(ArrayList<String> JavaSourceCodeDirs) {
       long codeCountLine = 0;
       for (String dirPath : JavaSourceCodeDirs) {
           File fl = new File(dirPath);
           if (fl.exists()) {
               codeCountLine += getJavaFileCountLine(fl);
           }
       }
       return codeCountLine;
   }

   private static long getJavaFileCountLine(File fl) {
       long javaCodeCountLine = 0;

       if (fl != null && fl.exists()) {
           if (fl.isDirectory()) {
               File[] listFiles = fl.listFiles();
               for (File file : listFiles) {
                   javaCodeCountLine += getJavaFileCountLine(file);
               }
           } else if (fl.isFile() && !fl.isHidden()) {

　　　　　　// 过滤源码的后缀坠
               if (fl.getName().endsWith(".java")) {

                   FileReader fr = null;
                   BufferedReader br = null;
                   try {
                       fr = new FileReader(fl);
                       br = new BufferedReader(fr);
                       while (br.readLine() != null)
                           javaCodeCountLine++;
                       br.close();
                       fr.close();
                   } catch (Exception e) {
                   } finally {
                       if (fr != null) {
                           try {
                               fr.close();
                           } catch (IOException e) {
                               e.printStackTrace();
                           } finally {
                               fr = null;
                           }
                       }
                       if (br != null) {
                           try {
                               br.close();
                           } catch (IOException e) {
                               e.printStackTrace();
                           } finally {
                               br = null;
                           }
                       }
                   }
               }

           }
       }
       return javaCodeCountLine;
   }
}

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java 计算源码的行数

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