JList getSelectedIndex-Error

[najjannaj]

Hallo,
Ich habe folgendes Frame erstellt:

package FrmNew;

import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JTextField;

import Dialog.AddDialog;
import FrmAbout.FrmAbout;

public class FrmNew extends Frame implements ActionListener {

	public static JList jList = null;
	private JLabel jLabel1 = null;
	private JLabel jLabel = null;
	private JTextField jTextField = null;
	private JButton jButton = null;
	private JButton jButton1 = null;
	DefaultListModel dlm = new DefaultListModel(); //ListModul zum Hinzufügen der Liste
	
	    public FrmNew() {
			super();
		      addWindowListener(								/*Auf Befehle im Fenster warten*/
		              new WindowAdapter()						/*Max-Minimieren-Beenden*/ {
		                 public void windowClosing(WindowEvent event)
		                 {
		                    setVisible(false);
		                    dispose();
		                    System.exit(0);
		                 }
		              }
		           );
			initialize();
		}
	    
		private void initialize() { /*Laden des Frames*/
			
			jLabel = new JLabel(); //Picture-Label
			jLabel1 = new JLabel(); //Comment-Label
			
			JList jList = new JList(dlm);

			this.setLayout(null);
			this.setBackground(java.awt.Color.lightGray);
			this.setSize(350, 240);
			this.setTitle("Fotofuture - New"); //Titel des Forumlars
			setMenuBar(new NewMenue(this));//Menü oben einfügen
			jLabel.setBounds(24, 57, 50, 17);
			jLabel.setText("Picture:");
			jLabel1.setBounds(9, 195, 64, 17);
			jLabel1.setText("Comment:");
			
			jList.setBounds(80, 60, 160, 125);
			
			this.add(jList,null);	//Hinzufügen der Liste
			this.add(jLabel, null);     //Hinzufügen des Picture-Labels
			this.add(jLabel1, null);    //Hinzufügen des Comment-Labels
			this.add(getJTextField(), null); //Hinzufügen des Comment-Text-Feldes
			this.add(getJButton(), null); //Hinzufügen des Add-Buttons 
			this.add(getJButton1(), null); //Hinzufügen des Add-Buttons
			this.show();
		}
	    public void actionPerformed(ActionEvent event) {//Für das Menü
	        String cmd = event.getActionCommand();
	        if (cmd.equals("Exit")){
	            setVisible(false);
	            dispose();
	            System.exit(0);
	        }
	        else if(cmd.equals("About")){
	            FrmAbout about = new FrmAbout();
	        }

	     }

	private JTextField getJTextField() { //Comment-Textbox
		if (jTextField == null) {
			jTextField = new JTextField();
			jTextField.setBounds(80, 200, 160, 20);
		}
		return jTextField;
	}
 
	private JButton getJButton() { //Add-Button
		if (jButton == null) {
			jButton = new JButton();
			jButton.setBounds(250, 60, 75, 25);
			jButton.setText("Add");
			jButton.addActionListener(new java.awt.event.ActionListener() { 
				public void actionPerformed(java.awt.event.ActionEvent e) {    
					System.out.println("button ADD wurde geklickt!");
					String strPath;
					strPath = AddDialog.AddDia();
					if (strPath != null){
						dlm.addElement(strPath);
					}else{
						System.out.println("strPath: " + strPath);
					}
				}
			});
		}
		return jButton;
	}

	private JButton getJButton1() { //Delete-Button
		if (jButton1 == null) {
			jButton1 = new JButton();
			jButton1.setBounds(250, 85, 75, 25);
			jButton1.setText("Delete");
			jButton1.addActionListener(new java.awt.event.ActionListener() { 
				public void actionPerformed(java.awt.event.ActionEvent e) {    
					System.out.println("button DELETE wurde geklickt!");
										
					int index = jList.getSelectedIndex(); // das ist selektiert
					System.out.println(index);
					
				}
			});
		}
		return jButton1;
	}

	public void addEintrag(String Eintrag){ //Funktion um der Liste einen Eintrag hinzuzufügen
		dlm.addElement(Eintrag);
	}
	
	public void rmEintrag(int Index){  //Funktion um in der Liste einen Eintrag zu löschen
		dlm.removeElementAt(Index);
	}
}

Mein Problem ist jetzt das wenn ich denn Code starte(mit Elcipse) kommt bleim Klicken auf Delete immer folgender rießen Fehler:

java.lang.NullPointerException
at FrmNew.FrmNew$3.actionPerformed(FrmNew.java:123)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Ich versteh es einfach nicht, warum kann ich denn selectedIndex nicht auslesen??
Bin für jeden Tip Dankbar!
Mit freundlichen Grüßen
Jan Löbel

 

[Sky]

Weil Du in Zeile 49 eine neue JList erstellst:

Mach einfach folgendes:

jList = new JList(dlm);

 

[najjannaj]

Danke, habs selbst grad rausgefunden
Dnake!