import java.applet.Applet;
import java.awt.*;
import java.util.ArrayList;
import java.util.Collections;

/**
 * Created by DoublyDead on 28.08.14.
 */
public class Test extends Applet implements Runnable
{
    String msg = "Лол";
    Thread t = null;
    boolean stopFlag;
    java.util.List<String> list;

    public void init()
    {
        setBackground(Color.white);
        setForeground(Color.black);
        list = new ArrayList<>();
        list = Collections.synchronizedList(list);
        list.add("Привет");
        list.add("Я твой");
        list.add("Друг");
    }

    public void start()
    {
        t = new Thread(this);
        stopFlag = true;
        t.start();
    }

    @Override
    public void run()
    {
        for(;;)
        {
            repaint();
            try
            {
                int rand = (int)(Math.random()*3);
                System.out.println(rand);
                msg = list.get(rand);
                Test.this.repaint();

                Thread.sleep(500);
            }catch (InterruptedException e)
            {}
        }
    }

    public void paint(Graphics g)
    {
        super.paint(g);
        g.drawString(msg, 10, 40);
    }
}