Main.java

package com.company;


import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class Main  {

    public static void main(String[] args) throws IOException, InterruptedException {
        File fileR = new File(args[0]);
        File fileW = new File(args[1]);

        BufferedReader reader = new BufferedReader(new FileReader(fileR));

        List<String> strings = new ArrayList<>();

        List<Thread> threads = new ArrayList<>();

        while (reader.ready()) {
            strings.add(reader.readLine());
        }

        ThreadGroup threadGroup = new ThreadGroup("myGroup");
        for (int i = 0; i < strings.size(); i++) {
            threads.add(new Thread(threadGroup,new MyThreads(strings.get(i), new FileVisitCounter(), fileW.getName()),String.valueOf(i+1)));
        }

        for (Thread t : threads) {
            t.start();
        }

        while (threadGroup.activeCount() > 0) {
            Thread.sleep(1);
        }
        new MyCSVWriter(fileW.getName()).writerToCSV();


    }

}