Where is a mistake

Question

Hello people,
I compilate the program and it is Ok,
when i run it- i see nothing,
who can help, where is a mistake?
import java.awt.*;
import javax.swing.*;
public class myHex extends JFrame {
RisuemHexagon rh;
public myHex(){
addWindowListener(new WindowDestroyer());
Container cont=getContentPane();
cont.setBackground(Color.blue);
rh=new RisuemHexagon();
cont.add(rh);
rh.start();
rh.run();
public static void main(String[] args)
myHex mh=new myHex();
mh.setSize(500,500);
mh.setVisible(true);
import java.awt.*;
import javax.swing.*;
import java.lang.*;
public class RisuemHexagon extends JPanel implements Runnable
Thread thread;
int position=0;
int i;
public RisuemHexagon()
setOpaque(true);
setBackground(Color.white);
setPreferredSize(new Dimension(500,500));
repaint();
public void paint(Graphics g)
super.paint(g);
//for(int i=1;i<5;i++)
g.drawLine(50,50,200-10*position,200);
//Thread.sleep(300);
public void start(){
if(thread!=null) {
return;
thread=new Thread(this);
thread.start();
public void run() {
try{
while(thread !=null) {
if(position>10) {
position=0;
repaint();
synchronized(this) {
wait(1000);
position++;
catch(Exception e) {}
      }

Answer 1

Now with my code something wrong,
the thread is working, but instead of drawing line step by step it is drawing all the line and repeat it may times,
import java.awt.*;
import javax.swing.*;
public class myHex extends JFrame {
RisuemHexagon rh;
public myHex(){
addWindowListener(new WindowDestroyer());
Container cont=getContentPane();
cont.setBackground(Color.blue);
rh=new RisuemHexagon();
cont.add(rh);
rh.start();
public static void main(String[] args)
myHex mh=new myHex();
mh.setSize(500,500);
mh.setVisible(true);
import java.awt.*;
import javax.swing.*;
import java.lang.*;
public final class RisuemHexagon extends JPanel implements Runnable{
int[] rx;
int[] ry;
Thread thread;
int position;
int i;
public RisuemHexagon()
setPreferredSize(new Dimension(500,500));
setOpaque(true);
setBackground(Color.white);
position=0;
rx=new int[3];
ry=new int[3];
rx[0]=50;
ry[0]=50;
rx[1]=100;
rx[2]=100;
ry[1]=300;
ry[2]=300;
public void paint(Graphics g)
super.paint(g);
try{
g.drawPolyline(rx,ry,position);
catch(Exception e){}
public void start(){
if(thread!=null) {
stop();
thread=new Thread(this);
position=0;
thread.start();
public void stop() {
thread=null;
public void run() {
try{
while(thread !=null) {
if(position>2) {
position=0;
repaint();
synchronized(this) {
wait(1000);
position++;
catch(Exception e) {}
      }