Implement Color Selector GUI with checkboxes

This class provides a GUI for selecting colors using checkboxes and displays the selected color.

ColorSelector.java

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+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class ColorSelector extends JFrame implements ActionListener {
+
+    JCheckBox redCheckBox, greenCheckBox, blueCheckBox;
+    JButton applyButton;
+    JLabel colorLabel;
+
+    public ColorSelector() {
+
+        setTitle("Color Selector");
+        setSize(400, 250);
+        setLayout(null);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        // Checkboxes
+        redCheckBox = new JCheckBox("Red");
+        greenCheckBox = new JCheckBox("Green");
+        blueCheckBox = new JCheckBox("Blue");
+
+        redCheckBox.setBounds(50, 30, 100, 30);
+        greenCheckBox.setBounds(150, 30, 100, 30);
+        blueCheckBox.setBounds(250, 30, 100, 30);
+
+        // Button
+        applyButton = new JButton("Apply Color");
+        applyButton.setBounds(130, 80, 140, 30);
+        applyButton.addActionListener(this);
+
+        // Label
+        colorLabel = new JLabel("Selected Color", JLabel.CENTER);
+        colorLabel.setBounds(80, 130, 240, 60);
+        colorLabel.setOpaque(true);                 // REQUIRED
+        colorLabel.setBorder(BorderFactory.createLineBorder(Color.BLACK)); // REQUIRED
+
+        // Add components
+        add(redCheckBox);
+        add(greenCheckBox);
+        add(blueCheckBox);
+        add(applyButton);
+        add(colorLabel);
+
+        setVisible(true);
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent e) {
+
+        boolean red = redCheckBox.isSelected();
+        boolean green = greenCheckBox.isSelected();
+        boolean blue = blueCheckBox.isSelected();
+
+        if (red && !green && !blue) {
+            colorLabel.setBackground(Color.RED);
+            colorLabel.setText("RED");
+        }
+        else if (!red && green && !blue) {
+            colorLabel.setBackground(Color.GREEN);
+            colorLabel.setText("GREEN");
+        }
+        else if (!red && !green && blue) {
+            colorLabel.setBackground(Color.BLUE);
+            colorLabel.setText("BLUE");
+        }
+        else if (red && green && !blue) {
+            colorLabel.setBackground(Color.YELLOW);
+            colorLabel.setText("YELLOW");
+        }
+        else if (red && !green && blue) {
+            colorLabel.setBackground(Color.MAGENTA);
+            colorLabel.setText("MAGENTA");
+        }
+        else if (!red && green && blue) {
+            colorLabel.setBackground(Color.CYAN);
+            colorLabel.setText("CYAN");
+        }
+        else if (red && green && blue) {
+            colorLabel.setBackground(Color.WHITE);
+            colorLabel.setText("WHITE");
+        }
+        else {
+            colorLabel.setBackground(null);
+            colorLabel.setText("No color selected");
+        }
+    }
+
+    public static void main(String[] args) {
+        new ColorSelector();
+    }
+}