source count

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class ReadFile ...{
    
    static long normalLines = 0;
    static long commentLines = 0;
    static long whiteLines = 0;
    
    public ReadFile() ...{
    }

    /** *//**
     * DELETE all folder and files
     * @param delpath String
     * @throws FileNotFoundException
     * @throws IOException
     * @return boolean
     */
    public static boolean deletefile(String delpath)
            throws FileNotFoundException, IOException ...{
        try ...{

            File file = new File(delpath);
            if (!file.isDirectory()) ...{
                System.out.println("1");
                file.delete();
            } else if (file.isDirectory()) ...{
                System.out.println("2");
                String[] filelist = file.list();
                for (int i = 0; i < filelist.length; i++) ...{
                    File delfile = new File(delpath + "/" + filelist[i]);
                    if (!delfile.isDirectory()) ...{
                        System.out.println("path=" + delfile.getPath());
                        System.out.println("absolutepath="
                                + delfile.getAbsolutePath());
                        System.out.println("name=" + delfile.getName());
                        delfile.delete();
                        System.out.println("DELETE SUCCESS");
                    } else if (delfile.isDirectory()) ...{
                        deletefile(delpath + "/" + filelist[i]);
                    }
                }
                file.delete();

            }

        } catch (FileNotFoundException e) ...{
            System.out.println("deletefile()   Exception:" + e.getMessage());
        }
        return true;
    }

    /** *//**
     * READ all folder and files
     * @param delpath String
     * @throws FileNotFoundException
     * @throws IOException
     * @return boolean
     */
    public static boolean readfile(String filepath)
            throws FileNotFoundException, IOException ...{
        try ...{

            File file = new File(filepath);
            if (!file.isDirectory()) ...{
                System.out.println("file");
                System.out.println("path=" + file.getPath());
                System.out.println("absolutepath=" + file.getAbsolutePath());
                System.out.println("name=" + file.getName());

            } else if (file.isDirectory()) ...{
                System.out.println("folder=" + file.getName());
                String[] filelist = file.list();
                for (int i = 0; i < filelist.length; i++) ...{
                    File readfile = new File(filepath + "/" + filelist[i]);
                    if (!readfile.isDirectory()) ...{
                        System.out.println("--------------------------------------------");
                        System.out.println("path=" + readfile.getPath());
                        System.out.println("absolutepath="
                                + readfile.getAbsolutePath());
                        System.out.println("name=" + readfile.getName());
                        parse(readfile);
                    } else if (readfile.isDirectory()) ...{
                        readfile(filepath + "/" + filelist[i]);
                    }
                }

            }

        } catch (FileNotFoundException e) ...{
            System.out.println("readfile() Exception:" + e.getMessage());
        }
        return true;
    }

    private static 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 (line.startsWith("/*") && line.endsWith("*/")) ...{
                    commentLines ++;
                } 
                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 static void main(String[] args) ...{
        try ...{
            readfile("D:/file");
            //deletefile("D:/file");
        } 
        catch (FileNotFoundException ex) ...{
            ex.printStackTrace();
        } 
        catch (IOException ex) ...{
            ex.printStackTrace();
        }
        System.out.println("ok");
        System.out.println("normalLines:" + normalLines);
        System.out.println("commentLines:" + commentLines);
        System.out.println("whiteLines:" + whiteLines);
    }
}