[ivan90BG]

Evo ti ovo. Provereno radi

public void run() {
	JButton[] butt = new JButton[5];
	for (int i = 0; i < this.paneli.length; i++)
	{
		for (int j = 0; j < butt.length; j++)
		{
			butt[j] = new JButton();
				this.paneli[i].add(butt[j]).setBackground(Color.blue);
			try {sleep(500L);} catch (InterruptedException e) {}
			butt[j].setVisible(false);
			butt[j].setVisible(true);
			paneli[i].repaint();
		}
	}
}