left.setBackground(Color.red);
left.setPreferredSize(new Dimension(100, 100));
openb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
JColorChooser clr = new JColorChooser();
Color color = clr.showDialog(panel, "Choose Color", Color.white);
left.setBackground(color);
}
});
JPanel right = new JPanel();