fgfdg

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Starthere extends JFrame {

    private static final long serialVersionUID = 1L;

    private JButton button1;
    private JButton button2;

    public Figur figur1;
    public Figur figur2;

    Starthere() {
        setSize(900, 900);
        setResizable(false);
        setVisible(true);

        JPanel panel1 = new JPanel();
        JPanel panel2 = new JPanel();

        figur1 = new Kreis(Color.BLACK, 10, 10, 100);
        figur2 = new Kreis(Color.WHITE, 100, 100, 100);
        //figur2 = new Rechteck(Color.BLUE, 0, 0, 100, 100);

        button1 = new JButton("Button 1");
        button1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                figur1.setColor(Color.BLACK);
                figur2.setColor(Color.WHITE);
                figur1.setPos(500, 100);

                repaint();
            }
        });

        button2 = new JButton("Button 2");
        button2.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                figur1.setColor(Color.WHITE);
                figur2.setColor(Color.BLACK);

                repaint();
            }
        });

        panel1.add(button1);
        panel2.add(button2);

        add(panel1, BorderLayout.NORTH);
        add(panel2, BorderLayout.SOUTH);
    }

    @Override
    public void paint(Graphics g) {
        figur1.Draw(g);
        figur2.Draw(g);
    }

    public static void main(String[] args) {
        new Starthere();
    }
}