Unbekannter Fehler

[fluffy17]

hi,
ich bin derzeit noch bei mich in Java einzuarbeiten und bekomme mal wieder die Fehlermeldung von Eclipse:

"Exception in thread "main" java.lang.Error: Unresolved compilation problem:
No enclosing instance of type Bilderbuch is accessible. Must qualify the allocation with an enclosing instance of type Bilderbuch (e.g. x.new A() where x is an instance of Bilderbuch).

at Bilderbuch.main(Bilderbuch.java:39)"

Was heiß das genau und wie kann ich das Problem beheben? Danke für eure Hilfe.

import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.PathIterator;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.io.File;
import java.net.URL;

public class Bilderbuch extends JPanel{
	private static final long serialVersionUID = 1L;

	public static void main(String[] args){
		JFrame frame = new JFrame("Test");
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setSize(800, 600);
		JPanel panel = new JPanel();
		frame.add(panel);
		JButton button = new JButton("Click here");
		panel.add(button);
		button.addActionListener(new Action());

		//---- new code
		JPanel picpanel = new JPanel();
		JScrollPane sc = new JScrollPane();
		panel.add(sc);
		sc.setVisible(true);
		sc.setViewportView(picpanel);
		picpanel.setVisible(true);
		picpanel.setSize(100, 100);
		newclass n;

		try{
			n = new newclass();  // <------- Fehlermeldung
			n.repaint();
		}catch(Exception e){
			n = null;			
		}
		//picpanel.add(p);
	}

	public class newclass extends JPanel{
		private static final long serialVersionUID = 1L;
		private BufferedImage i;

		public newclass(){
			try{
				i = ImageIO.read( new File("C:/kopie server/Schule/Studium/Semester 5/pic/roentgenbild.jpg" ) );
			}catch(Exception e){ i = null; }
		}

		@Override protected void paintComponent( Graphics g ) 
		{ 
			Graphics2D g2d = (Graphics2D) g;
			g2d.drawImage(i, null, 2500, 2500); 
		}
	}	
	static class Action implements ActionListener{
		public void actionPerformed (ActionEvent e){
			JFrame frame2 = new JFrame("Clicked");
			frame2.setVisible(true);
			frame2.setSize(200, 200);
			JLabel label = new JLabel("You clicked me!");
			JPanel panel = new JPanel();
			frame2.add(panel);
			panel.add(label);

		}
	}	
}

[Tobiking2]

Es steht eigentlich im Fehler genau drin:

fluffy17 schrieb:

(e.g. x.new A() where x is an instance of Bilderbuch).

"newclass" ist eine inner class, weil du sie innerhalb einer anderen Klasse geschrieben hast ( http://java.sun.com/docs/books/tutorial/java/javaOO/innerclasses.html ). Also muss es "n = this.new newclass();" heißen.

[fluffy17]

super vielen vielen Dank