import javax.swing.*;
import java.awt.event.*;
import javax.swing.filechooser.*;
import java.awt.image.*;
import java.io.File;

class ImageFilter extends FileFilter {
    private final String[] okFileExtensions =
	new String[] {"jpg", "png", "gif"};

    public boolean accept(File file) {
        if(file.isDirectory()) {
            return true;
        }
        for (String extension : okFileExtensions) {
            if (file.getName().toLowerCase().endsWith(extension)) {
                return true;
            }
        }
        return false;
    }
    public String getDescription() {
        return "Képfájlok";
    }
}

class Program extends JFrame
{
	JFileChooser fc = new JFileChooser();
	JButton gomb;
	Program()
	{
		//~ fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
		fc.setAcceptAllFileFilterUsed(false);
		fc.addChoosableFileFilter(new ImageFilter());

		gomb = new JButton("Nyomj");
		gomb.addActionListener(new GombClick());

		add(gomb);
		setSize(400, 300);
		setVisible(true);
	}
	class GombClick implements ActionListener
	{
		public void actionPerformed(ActionEvent e)
		{
			int a = fc.showOpenDialog(Program.this);
			setTitle(fc.getSelectedFile().getPath());
		}
	}
	public static void main(String args[])
	{
		new Program();
	}
}