package lab7a;

import java.util.Random;
import java.io.File;
import java.io.FileInputStream;

public class ThreadLab extends Thread implements Runnable
{

	public static void main(String[] args)
	{
		int[] array;
		Random ran = new Random();
		array = new int[100000];

		for(int x = 0; x < array.length; x++)
		{
			array[x] = ran.nextInt(100);
		}
		System.out.printf("Array length: %d%n", array.length);

		Runnable r1 = new ThreadLab(array, 0, array.length/2);
		Runnable r2 = new ThreadLab(array, array.length/2, array.length);

		Thread tl1 = new Thread(r1);
		Thread tl2 = new Thread(r2);

		tl1.start();
		tl2.start();
	}

	private int[] array;
	private int x, y, sum;

	public ThreadLab(Runnable r)
	{
		super(r);
	}

	public ThreadLab(int[] array2, int i, int length)
	{
		this.array = array2;
		x = i;
		y = length;
	}

	public void run()
	{
		for(int i = x; i < y; i++)
		{
			sum += array[i];
		}
		System.out.println("Partial sum of thread " + this.getName() + ": " + sum);
	}
}