MergeSort.java

package multithreadedmergesort;
import java.io.*;

/**
 *
 * @author Davidthefat
 */
public class MergeSort
{
    private static String[][] array;
    private static String[] filename;
    private static Thread[] thr;
    public static void main(String[] args)
    {
        filename = new String[args.length];
        array = new String[args.length][];
        for(int i = 0; i < args.length; i++)
        {
            filename[i] = args[i];
            array[i] = new String[Integer.parseInt(filename[i].substring(0, filename[i].indexOf(".")))];
            System.out.println(filename[i] + " " + array[i].length);
        }
        thr = new Thread[args.length];
        try
        {
            for(int i = 0; i < thr.length; i++)
            {
                thr[i] = new ReadThread(array[i], filename[i]); //Reads in the files
                thr[i].start();
                thr[i].join();
            }
            for(int i = 0; i < thr.length; i ++)
            {
                thr[i] = new Sort(array[i]);
                thr[i].start();
            }
            for(int i = 0; i < thr.length; i ++)
            {
                thr[i].join();
                System.out.println(filename[i] + " Done");
            }
        }
        catch(InterruptedException e)
        {
            System.out.println(e.getMessage());
        }
        try
        {
            BufferedWriter out;
            for(int i = 0; i < array.length; i ++)
            {
                System.out.println("Printing : " + filename[i]);
                out = new BufferedWriter(new FileWriter(array[i].length + "output.txt"));
                for(int k = 0; k < array[i].length; k ++)
                {
                    out.write(array[i][k]);
                    out.newLine();
                }
                out.close();
            }
        }
        catch (IOException e)
        {
            System.out.println(e.getMessage());
        }
        System.out.println("Done");
    }
}