Question

I have a problem here – I have a hexadecimal value being stored in a textfield after I have selected a color (using JColorChooser). What I would like to do is display the name of the color in another textfield right beside the one with the hexadecimal value, but I am unsure as to how to get the color name? I am including my code, maybe someone can give me some useful hints:

public class Main extends JComponent implements Accessible {
    public ColorSelectionModel selectionModel;
    public static final String SELECTION_MODEL_PROPERTY = "selectionModel";
    public JColorChooser chooser;
    public Color color;

    public void process() {
        JFrame frame;
        JButton button;
        final JTextField text1, text2;

        // Initialize variables
        chooser = new JColorChooser();
        frame = new JFrame();
        JPanel panel = new JPanel();
        button = new JButton("Show color Palette");
        text1 = new JTextField(20);
        text2 = new JTextField(20);

        // Setup UI
        frame.add(panel);
        panel.add(button);
        panel.add(text1);
        panel.add(text2);
        panel.add(chooser)
        chooser.setVisible(false);

        button.setLocation(800, 600);
        button.setActionCommand("");
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent ae) {
                color = chooser.showDialog(chooser, "SHOW THE COLOR",
                        chooser.getColor());
                {
                    if (color != null) {
                        String hex = Integer.toHexString(color.getRGB() & 0xffffff);
                        hex = "#" + hex;
                        text1.setText(hex);
                    }
                }
            }
        });

        frame.setVisible(true);
        frame.setSize(1000, 800);
    }

    public static void main(String[] argv) {
        // Run the code
        Main m1 = new Main();
        m1.process();
    }
}

Answer 1

I achieved this by Java Reflection : (works for static final Color defined in java.awt.Color)

Here is my code :

public static String getNameReflection(Color colorParam) {
        try {
            //first read all fields in array
            Field[] field = Class.forName("java.awt.Color").getDeclaredFields();
            for (Field f : field) {
                String colorName = f.getName();
                Class<?> t = f.getType();
                // System.out.println(f.getType());
                // check only for constants - "public static final Color"
                if (t == java.awt.Color.class) {
                    Color defined = (Color) f.get(null);
                    if (defined.equals(colorParam)) {
                        System.out.println(colorName);
                        return colorName.toUpperCase();
                    }
                }
            }
        } catch (Exception e) {
            System.out.println("Error... " + e.toString());
        }
        return "NO_MATCH";
    }

Source : http://ganeshtiwaridotcomdotnp.blogspot.com/2011/12/java-reflection-getting-name-of-color.html