ImageEditorFrame.java

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;

public class ImageEditorFrame extends JFrame{
	public ImageEditorFrame(){
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setSize(400, 300);
		setVisible(true);
	}
 
	public static void main(String[]args){
		ImageEditorFrame frame = new ImageEditorFrame();
		frame.setTitle("Fenster");
		
	}
	
	private void createMenuBar(){ 
		 JMenuBar menuBar = new JMenuBar();
		 setJMenuBar(menuBar);
		 JMenu menuFile = new JMenu("File");
		 menuBar.add(menuFile);
		 JMenuItem menuItemOpen = new JMenuItem("Open");
		 menuFile.add(menuItemOpen);
		 menuItemOpen.addActionListener(
		 new ActionListener() {
			 public void actionPerformed(ActionEvent e){
				onOpen();
			}
		}
		);
	}

	private void onOpen(){
		JOptionPane.showMessageDialog(this, "Open Selected");
	}

}