package prj;

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

public class ZaehleAllePrgsZeilenV1
{
	static long countDirs = 0;
	static long countFiles = 0;
	static long fileSize = 0;
	static long countRecords = 0;

	static String pfad = "C:\\Users\\HBRI185\\Documents\\OCA-Kurs\\OCJP8PI\\WS_TN03\\OCA1910";
	static String search = ".java";

	public static void main(String[] args) throws IOException
	{
		System.out.println("Start");

		listDir(new File(pfad), search);

		System.out.println("------------------------------------------");
		System.out.println(countDirs + " Verzeichnisse durchsucht.");
		System.out.println("------------------------------------------");
		System.out.println(countFiles + " Dateien gefunden");
		System.out.println("------------------------------------------");
		System.out.println("Größe aller Dateien : " + fileSize + " Bytes");
		System.out.println("------------------------------------------");
		System.out.println("mit insgesamt : " + countRecords + " Datensätzen");
		System.out.println("------------------------------------------");

		System.out.println("Ende");

	}

	public static void listDir(File fy, String suche) throws IOException	{
		File[] fileArray = fy.listFiles();
		if (fileArray.length > 0)
			Arrays.sort(fileArray);		{
			for (File fx : fileArray)			{
				if (!fx.isHidden())				{
					if (fx.isDirectory())					{
						countDirs++;
						listDir(fx, suche);
					} else					{
						if (fx.getName().toLowerCase().endsWith((suche).toLowerCase()))						{
							fileSize += fx.length();
							countFiles++;
							dateiLesen(fx.getPath());
						}
					}
				}
			}
		}
	}

	public static void dateiLesen(String dateiName) throws IOException	{
		File f = new File(dateiName);
		FileReader fr = new FileReader(f);
		BufferedReader gzl = new BufferedReader(fr);

		while (null != gzl.readLine())		{
			countRecords++;
		}
		gzl.close();

	}
}