import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class ThreadInAndererKlasse implements ActionListener {

    private JButton button;

    public ThreadInAndererKlasse() {
        init();
    }

    private void init() {
        JFrame frame = new JFrame();
        button = new JButton("auf geht's");
        button.setFocusable(true);
        button.addActionListener(this);
        frame.add(button);
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new ThreadInAndererKlasse());
    }

    public void actionPerformed(ActionEvent arg0) {
        MachWas machDoch = new MachWas();
        machDoch.start();
    }
}