import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * Write a program that shows a frame with three buttons labeled “Red”,
 * “Green”, and “Blue”, and a label containing an icon showing a circle that is
 * initially red. As the user clicks the buttons, the fill color of the circle should
 * change. When you change the color, you need to invoke the repaint
 * method on the label. The call to repaint ensures that the paintIcon method
 * is called so that the icon can be repainted with the new color.
 */
public class C4Q14 {
    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(() -> {
            javax.swing.JFrame frame = new javax.swing.JFrame("C4Q14");
            frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
            frame.setSize(400, 400);
            // frame.setLayout(new java.awt.BorderLayout());

            javax.swing.JLabel label = new javax.swing.JLabel(new CircleIcon(java.awt.Color.RED, 300));
            frame.add(label, java.awt.BorderLayout.CENTER);

            javax.swing.JPanel panel = new javax.swing.JPanel();
            panel.setLayout(new java.awt.FlowLayout());

            javax.swing.JButton redButton = new javax.swing.JButton("Red");
            redButton.addActionListener((e) -> {
                label.setIcon(new CircleIcon(java.awt.Color.RED, 300));
                label.repaint();
            });
            panel.add(redButton);

            javax.swing.JButton greenButton = new javax.swing.JButton("Green");
            greenButton.addActionListener((e) -> {
                label.setIcon(new CircleIcon(java.awt.Color.GREEN, 300));
                label.repaint();
            });
            greenButton.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    label.setIcon(new CircleIcon(java.awt.Color.GREEN, 300));
                    label.repaint();
                }
            });
            panel.add(greenButton);

            javax.swing.JButton blueButton = new javax.swing.JButton("Blue");
            blueButton.addActionListener((e) -> {
                label.setIcon(new CircleIcon(java.awt.Color.BLUE, 300));
                label.repaint();
            });
            panel.add(blueButton);

            // frame.add(panel, java.awt.BorderLayout.SOUTH);
            frame.setVisible(true);
        });
    }
}