Change Image background color

Question

How can I change the color of the background image that is black to the color that is selelected?

JComponent colorBar = new ColorComponent(Color.BLACK);
colorBar.addMouseListener(new MouseAdapter() {
        public void mouseClicked(MouseEvent e) {
            Color defaultColor = getBackground();
            Color selected = JColorChooser.showDialog(DessinFrame.this,
                    "Set background", defaultColor);
            if (selected != null) setBackground(selected);
        }
    });

Answer 1

Close. It looks like your get/setBackground(selected) should be referencing the colorBar component

JComponent colorBar = new ColorComponent(Color.BLACK);
colorBar.addMouseListener(new MouseAdapter() {
        public void mouseClicked(MouseEvent e) {
            Color defaultColor = colorBar.getBackground();
            Color selected = JColorChooser.showDialog(DessinFrame.this, "Set background", defaultColor);
            if (selected != null) colorBar.setBackground(selected);
        }
    });