import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Inhoud extends JFrame implements ActionListener {

    private JButton button;
    
    public static void main(String[] args) {
        Inhoud frame = new Inhoud();
        frame.setSize(500,300);
        frame.createGUI();
        frame.show();
    }

    private void createGUI() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Container window = getContentPane();
        window.setLayout(new FlowLayout());

        button = new JButton("Klik op mij");
        window.add(button);
        button.addActionListener(this);

       
    }

    public void actionPerformed(ActionEvent event) {
       
        
       	//vul hier de rest aan...
       	
       	
       	
       	
        	       	
        	
    }
  
       
   
}