[Java] HILFE!!! Grafische Oberfläche und Actionen

package beispiele;

import java.awt.*;
import javax.swing.*;
import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


class Fenster extends JFrame{
 JButton b1,b2,b3,b4,b5;
 JTextField t1;
 JProgressBar pb1;
 JLabel l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12;
 String ergstring = "";
 int[] wert = new int[2];
 int lauf=0;
 PPanel3 p3;
 
 public Fenster(){
 super("Drehwinkel - Erfassung");
 
 p3=new PPanel3();
 
 JMenuBar menuBar=new JMenuBar();
 JMenu fileMenu=new JMenu("Datei");
 menuBar.add(fileMenu);
 this.setJMenuBar(menuBar);
 fileMenu.add(new JMenuItem("Neu"));
 fileMenu.add(new JMenuItem("Laden"));
 fileMenu.addSeparator();
 fileMenu.add(new JMenuItem("Speichern"));
 fileMenu.add(new JMenuItem("Drucken"));
 fileMenu.addSeparator();
 Action exitAction=new AbstractAction("Beenden"){
 public void actionPerformed(ActionEvent e){
 System.exit(0);
 }
 };
 fileMenu.add(exitAction);
 
 JMenu fileMenu2=new JMenu("Bearbeiten");
 menuBar.add(fileMenu2);
 this.setJMenuBar(menuBar);
 fileMenu2.add(new JMenuItem("Kopieren"));
 fileMenu2.add(new JMenuItem("Einfügen"));
 fileMenu2.add(new JMenuItem("Ausschneiden"));
 fileMenu2.addSeparator();
 fileMenu2.add(new JMenuItem("Tastenkürzel"));
 
 JMenu helpMenu=new JMenu("?");
 menuBar.add(helpMenu);
 helpMenu.add(new JMenuItem("Hilfe"));
 helpMenu.addSeparator();
 helpMenu.add(new JMenuItem("Über das Programm"));
 
 
 
 this.setDefaultCloseOperation(EXIT_ON_CLOSE);
 Container contentPane=this.getContentPane();
// contentPane.setBackground(Color.cyan);
 contentPane.setLayout(null);
 
 b1=new JButton("Auslesen");
 b2=new JButton("Speichern");
 b3=new JButton("Übergeben");
 b4=new JButton("Wechsel");
 b5=new JButton("Unten");
 t1=new JTextField("");
 l1=new JLabel("");
 l2=new JLabel("");
 l3=new JLabel("");
 l4=new JLabel("");
 l5=new JLabel("");
 l6=new JLabel("");
 l7=new JLabel("");
 l8=new JLabel("");
 l9=new JLabel("");
 l10=new JLabel("");
 l11=new JLabel("Werte:");
 
 pb1=new JProgressBar();
 
 
 contentPane.add(p3).setBounds(120,20,294,286);
 contentPane.add(b1).setBounds(520,10,120,30);
 contentPane.add(b2).setBounds(520,50,120,30);
 contentPane.add(b3).setBounds(520,90,120,30);
 contentPane.add(b4).setBounds(520,130,120,30);
 contentPane.add(t1).setBounds(183,365,120,20);
 contentPane.add(l11).setBounds(520,170,120,20);
 contentPane.add(l1).setBounds(520,190,120,20);
 contentPane.add(l2).setBounds(520,210,120,20);
 contentPane.add(l3).setBounds(520,230,120,20);
 contentPane.add(l4).setBounds(520,250,120,20);
 contentPane.add(l5).setBounds(520,270,120,20);
 contentPane.add(l6).setBounds(520,290,120,20);
 contentPane.add(l7).setBounds(520,310,120,20);
 contentPane.add(l8).setBounds(520,330,120,20);
 contentPane.add(l9).setBounds(520,350,120,20);
 contentPane.add(l10).setBounds(520,370,120,20);
 contentPane.add(pb1).setBounds(135,390,222,25);
 
 
 this.setBounds(100,100,655,600);
 this.setResizable(false);
 this.setVisible(true);
 

 b2.addActionListener(new ActionListener()
 {
 public void actionPerformed(ActionEvent ae)
 {
 String s1=t1.getText();
 // umwandeln in interger-format und speichern als z1!!
 int z1 = Integer.parseInt(s1);
 wert[lauf] = z1; 
 lauf ++;
 }
 }
 );
 
 b3.addActionListener(new ActionListener(){
 public void actionPerformed(ActionEvent ae) {
 ausgeben();
 }
 }
 );
 

 }
 
 int x=0;
 public void ausgeben(){
 ergstring = ergstring+String.valueOf(wert[x]); 
 x++;
 
 l1.setText(ergstring);
 }
 
}

class PPanel3 extends JPanel {
 JLabel l12;
 Image img;
 public PPanel3() {
 img=Toolkit.getDefaultToolkit().createImage("C:\\Users\\dominik\\workspace\\LEA_09\\IMAG0030.gif");
 }
 public void paintComponent(Graphics g){
 g.drawImage(img,0,0 ,this);
 }
}


public class MFenster {

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

 }
}