Something

[code]import javax.swing.*;    import java.awt.*;      import java.awt.event.*; public class CGrafik {    public static void main(String[] args){		CFenster fenster = new CFenster("Zeichnen");	fenster.pack();	fenster.setSize(450,350);	fenster.setResizable(true);	fenster.setVisible(true);    }}class CFenster extends JFrame {            CFenster (String titel) {		super(titel);		setLayout(new FlowLayout());	setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);		CJPanel panel = new CJPanel();	add(panel);    }}class CJPanel extends JPanel{    CJPanel() {	setBackground(Color.black);	setForeground(Color.blue);    }    public Dimension getMinimumSize() {	return new Dimension(300,300);    }    public Dimension getPreferredSize() {	return getMinimumSize();    }        /*public void paint(Graphics g) {	g.translate(150,150);	g.setColor(Color.green);	g.drawLine(-100,-100,100,100);	}*/}[/code]