Lagujące wątki w java

package package1;

public class main1 {

	public static void main(String[] args) {
	new A();
	}

}

package package1;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.util.ArrayList;

import javax.swing.JFrame;

public class A {

	Options o;

	A() {
		o = new Options();

		o.myframe.setTitle("window");
		o.myframe.getContentPane().setPreferredSize(new Dimension(o.DIMENSION,o.DIMENSION));
		o.myframe.setSize(o.DIMENSION, o.DIMENSION);
		o.myframe.pack();
		
		o.myframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		o.myframe.setLayout(new BorderLayout());
		o.myframe.setVisible(true);
		
		
		new Draw(o);
		
	    ArrayList<Watek3> runnable = new ArrayList<Watek3>();
	    ArrayList<Thread> thread = new ArrayList<Thread>();
	    
		for (int i = 0; i < o.NUMBER; i++) {
			runnable.add(new Watek3(o,i));
			thread.add(new Thread(runnable.get(i)));
		}

		for (int i = 0; i < o.NUMBER; i++) {
			thread.get(i).start();
		}

	}

}

package package1;

import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.JPanel;

public class Draw extends JPanel {
	Options o;

	Draw(Options o) {
		this.o = o;
		o.myframe.add(this);
	}

	@Override
	public void paintComponent(Graphics g) {
		Graphics g2d = (Graphics2D) g;
		for(int i=0;i<o.NUMBER;i++) {
		g2d.drawImage(o.lista_img.get(i), o.x[i], o.y[i], this);
		g2d.drawLine(o.DIMENSION/2, 0, o.DIMENSION/2, o.DIMENSION);
		g2d.drawLine(0, o.DIMENSION/2, o.DIMENSION, o.DIMENSION/2);
		}
	}

	

}

package package1;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;

import javax.imageio.ImageIO;
import javax.swing.JFrame;

public class Options {
	final int NUMBER = 13;
	final int DIMENSION = 700;
	JFrame myframe = new JFrame();
	BufferedImage img;
	int x[] = new int[NUMBER];
	int y[] = new int[NUMBER];
	int dx[] = new int[NUMBER];
	int dy[] = new int[NUMBER];
	ArrayList<BufferedImage> lista_img = new ArrayList<BufferedImage>();
	Options() {
		try {
			img = ImageIO.read(new File("images/qwe.png"));
		} catch (IOException e) {
			System.err.println("file error");
			e.printStackTrace();
		}
		
		for (int i = 0; i < NUMBER; i++) {
			x[i] = img.getWidth();
			y[i] = i*img.getHeight()+5*i;
			lista_img.add(img);
		}


	}

}

package package1;

import java.util.Random;

public class Watek3 implements Runnable {
	Options o;
	int ind;
	int dx, dy;
	int jezeli[] = new int[8];
	boolean czy_reset = false;
	Random rand = new Random();
	Watek3(Options o, int ind) {
		this.o = o;
		this.ind = ind;
	}

	private void set_jezeli() {
		jezeli[0] = o.img.getWidth();
		jezeli[1] = o.DIMENSION - 2 * o.img.getHeight();
		jezeli[2] = o.DIMENSION - 2 * o.img.getWidth();
		jezeli[3] = o.DIMENSION - 2 * o.img.getHeight();
		jezeli[4] = o.DIMENSION - 2 * o.img.getWidth();
		jezeli[5] = o.img.getHeight();
		jezeli[6] = o.img.getWidth();
		jezeli[7] = o.DIMENSION - o.img.getHeight();
	}

	private void zamien(int zmiana) {
		jezeli[0] += zmiana;
		jezeli[1] -= zmiana;
		jezeli[2] -= zmiana;
		jezeli[3] -= zmiana;
		jezeli[4] -= zmiana;
		jezeli[5] += zmiana;
	}

	@Override
	public void run() {
		boolean is=false;
		int zmiana = 10;
		int speed= (ind*2+1);
		set_jezeli();
		for (;true;) {
			if (Math.sqrt(Math.pow(o.DIMENSION / 2 - o.x[ind], 2) + Math.pow(o.DIMENSION / 2 - o.y[ind], 2)) <= (Math.sqrt(o.img.getHeight()*o.img.getHeight()+o.img.getWidth()*o.img.getWidth())+1)) {
				do {
				dx=rand.nextInt()%o.NUMBER-o.NUMBER/2;
				dy=rand.nextInt()%o.NUMBER-o.NUMBER/2;
				}while(Math.sqrt(dx*dx+dy*dy)<=speed ||Math.sqrt(dx*dx+dy*dy)>=4*speed);
			

 while(o.y[ind]<=o.DIMENSION-2*o.img.getHeight() && o.y[ind]>=o.img.getHeight() && o.x[ind]>=o.img.getWidth() && o.x[ind]<=o.DIMENSION-2*o.img.getWidth())
            {
//zmiana
 SwingUtilities.invokeLater( () -> {
                o.x[ind] += dx;
                o.y[ind] += dy; 
} );
                try {
                    Thread.sleep(15);
                } catch (InterruptedException e) {
                    System.err.println("pause error");
                    e.printStackTrace();
                }

            }
            set_jezeli();

package package2;

public class TheFirstOne {

	public static void main(String[] args)
	{
		
		TheSecondOne two = new TheSecondOne();
		Thread wat = new Thread(two);
		wat.start();
	}

}

package package2;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class TheSecondOne extends JPanel implements Runnable {
	int x = 0, y = 0;

	JFrame myframe = new JFrame("okno");

	TheSecondOne()
	{
		myframe.getContentPane().setPreferredSize(new Dimension(500, 500));
		myframe.pack();
		myframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		myframe.setLayout(new BorderLayout());
		myframe.setVisible(true);
		myframe.add(this);
	}

	public void paintComponent(Graphics g)
	{
		Graphics g2d = (Graphics2D) g;
		g2d.drawLine(0, 0, x, y);
	}

	@Override
	public void run()
	{
		for (int i = 0; i < 500; i++)
		{
			SwingUtilities.invokeLater(() -> {  //tutaj też to jest potrzebne?
				x = y++;
			});
			myframe.repaint();
			try
			{
				Thread.sleep(17);
			} catch (InterruptedException e)
			{
				System.err.println("pause error");
				e.printStackTrace();
			}
		}

	}
}