Java Backgrounds, Foregrounds, Borders, Tool Tip Texts

/*
 * Display a frame that contains six labels. Set the background of the labels to white. Set the foreground of the labels to black, blue, cyan, green,
 * magenta, and orange, respectively, as shown in Figure 12.28a. Set the border of each label to a line border with the color yellow. Set the font of each
 * label to Times Roman, bold and 20 pixels. Set the text and tool tip text of each label to the name of its foreground color.
 */
import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

public class SwingCommonFeatures extends JFrame
{
    // Main method
    public static void main(String[] args)
    {
        SwingCommonFeatures frame = new SwingCommonFeatures();
        frame.setTitle("Exercise 12_08");
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
        frame.setVisible(true);
    }

    // Constructor
    public SwingCommonFeatures()
    {
        setLayout(new GridLayout(3, 3));

        // Create labels
        JLabel black = new JLabel("black");
        JLabel blue = new JLabel("blue");
        JLabel cyan = new JLabel("cyan");
        JLabel green = new JLabel("green");
        JLabel magenta = new JLabel("magenta");
        JLabel orange = new JLabel("orange");

        // Set background colors
        black.setBackground(Color.WHITE);
        blue.setBackground(Color.WHITE);
        cyan.setBackground(Color.WHITE);
        green.setBackground(Color.WHITE);
        magenta.setBackground(Color.WHITE);
        orange.setBackground(Color.WHITE);

        // Set background colors
        black.setForeground(Color.BLACK);
        blue.setForeground(Color.BLUE);
        cyan.setForeground(Color.CYAN);
        green.setForeground(Color.GREEN);
        magenta.setForeground(Color.MAGENTA);
        orange.setForeground(Color.ORANGE);

        // Create and set borders
        LineBorder b = new LineBorder(Color.YELLOW);
        black.setBorder(b);
        blue.setBorder(b);
        cyan.setBorder(b);
        green.setBorder(b);
        magenta.setBorder(b);
        orange.setBorder(b);

        // Create and set fonts
        Font f = new Font("TimesRoman", Font.BOLD, 20);
        black.setFont(f);
        blue.setFont(f);
        cyan.setFont(f);
        green.setFont(f);
        magenta.setFont(f);
        orange.setFont(f);

        // Set tool tip text
        black.setToolTipText("Black");
        blue.setToolTipText("Blue");
        cyan.setToolTipText("Cyan");
        green.setToolTipText("Green");
        magenta.setToolTipText("Magenta");
        orange.setToolTipText("Orange");

        // Add labels
        add(black); add(blue); add(cyan);
        add(green); add(magenta); add(orange);
    }
}