OS Lab 2.3

import java.io.File;


public class FileScanner extends Thread{

    private String fileToScan;
    //TODO: Initialize the start value of the counter
    private static Long counter = (long)0;

    public FileScanner (String fileToScan) {
        this.fileToScan=fileToScan;

        //TODO: Increment the counter on every creation of FileScanner object
        counter++;

    }

    public static void printInfo(File file)  {

        /* TODO: Print the info for the @argument File file, according to the requirement of the task */
        System.out.println("file: " + file.getAbsolutePath() + " " + file.length());
    }

    public static Long getCounter () {
        return counter;
    }


    public void run() {

        //TODO Create object File with the absolute path fileToScan.
        File file = new File(fileToScan);

        //TODO Create a list of all the files that are in the directory file.
        File [] files = file.listFiles();

        if(file.length() != 0) {
            for (File f : files) {

                /*
                 * TODO If the File f is not a directory, print its info using the function printInfo(f)
                 * */
                if (!f.isDirectory()) {
                    printInfo(f);
                }

                /*
                 * TODO If the File f is a directory, create a thread from type FileScanner and start it.
                 * */
                Thread asd = new FileScanner(f.getAbsolutePath());
                if (f.isDirectory()) {
                    System.out.println("dir: " + f.getAbsolutePath() + " " + f.length());
                    asd.start();
                }

                //TODO: wait for all the FileScanner-s to finish
                try {
                    asd.join();
                } catch (InterruptedException e) {
                }
            }
        }
    }

    public static void main (String [] args) {
        String FILE_TO_SCAN = "C:/Users/189075/Desktop/lab";

        //TODO Construct a FileScanner object with the fileToScan = FILE_TO_SCAN
        FileScanner fileScanner = new FileScanner(FILE_TO_SCAN);

        //TODO Start the thread from type FileScanner
        fileScanner.start();

        //TODO wait for the fileScanner to finish
        try {
            fileScanner.join();
        }
        catch (InterruptedException e){}

        //TODO print a message that displays the number of thread that were created
        System.out.println(counter + " nitki bea kreirani");

    }
}