Why it dont show the Pictures in the window?

Question

I am unable to find out, why the Pictures arent shown...
The Pictures are in the correct folder.
The program runs but dont show the 3 Pictures.
What is the problem?
Code:
import java.awt.*;
import java.awt.Color;
import java.applet.*;
import java.awt.image.*;
import java.awt.event.*;
public class BildInFenster extends Frame{
public void zeichnen(Graphics g){
Image img1, img2, img3;
img1 = Toolkit.getDefaultToolkit().getImage("1.jpg");
img2 = Toolkit.getDefaultToolkit().getImage("2.jpg");
img3 = Toolkit.getDefaultToolkit().getImage("3.jpg");
MediaTracker tr = new MediaTracker(this);
tr.addImage(img1, 0);
tr.addImage(img2, 1);
tr.addImage(img3, 2);
try {
tr.waitForAll();
catch (InterruptedException ex){
g.drawImage(img1, 20, 20, 100, 100, this);
g.drawImage(img2, 20, 170, 100, 100, this);
g.drawImage(img3, 20, 320, 100, 100, this);
public static void main (String []args){
Frame fenster = new Frame();
fenster.setTitle("Einarmiger Bandit");
fenster.setSize(500, 600);
fenster.setVisible(true);
WindowListener wl = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
fenster.addWindowListener(wl);
Thank you for your help!

Answer 1

Hello My Dear Frend,
Do u think that ur BildInFenster class's object will be called automatically???????,
Please make a note that u r not calling the object of the BildInFenster Class.
Make the Following Changes
import java.awt.*;
import java.awt.Color;
import java.applet.*;
import java.awt.image.*;
import java.awt.event.*;
public class BildInFenster extends Frame{
public BildInFenster()
     repaint();
public void paint(Graphics g){
Image img1, img2, img3;
img1 = Toolkit.getDefaultToolkit().getImage("1.jpg");
img2 = Toolkit.getDefaultToolkit().getImage("2.jpg");
img3 = Toolkit.getDefaultToolkit().getImage("3.jpg");
MediaTracker tr = new MediaTracker(this);
tr.addImage(img1, 0);
tr.addImage(img2, 1);
tr.addImage(img3, 2);
try {
tr.waitForAll();
catch (InterruptedException ex){System.out.println(ex);
g.drawImage(img1, 20, 20, 100, 100, this);
g.drawImage(img2, 20, 170, 100, 100, this);
g.drawImage(img3, 20, 320, 100, 100, this);
public static void main (String []args){
BildInFenster fenster = new BildInFenster(); // instead of the Frame object call ur BildInFenster Classes Object
fenster.setTitle("Einarmiger Bandit");
fenster.setSize(500, 600);
fenster.setVisible(true);
WindowListener wl = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
fenster.addWindowListener(wl);
}