jlabeldemo.java

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import java.awt.*;
import javax.swing.*;

/**
 * Demonstrates the component {@link JLabel}. This class extends
 * class {@link @JPanel}.
 *
 * @author author name
 * @version 1.0.0
 */
public class JLabelDemo extends JPanel {

    private JLabel labelLeft;
    private JLabel labelCenter;
    private JLabel labelRight;

    /**
     * Creates a window.
     *
     * @param args  not used.
     */
    public static void main(String[] args) {

        JFrame frame = new JFrame("JLabelDemo");

        frame.setContentPane(new JLabelDemo());
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();    // Adjust the size of the window
        frame.setVisible(true);
    }

    /**
     * Creates three {@link JLabel} components .
     */
    public JLabelDemo() {

        setLayout(new GridLayout(1, 3));
        setBackground(Color.white);

        ImageIcon icon = new ImageIcon("images/bananas.gif",
                                       "an image with bananas");

        // Create the components
        labelLeft = new JLabel("Hello", icon, JLabel.CENTER);
        labelCenter = new JLabel("Hello");
        labelRight = new JLabel(icon);

        // Set the position of the text, relative to the icon
        labelLeft.setVerticalTextPosition(JLabel.BOTTOM);
        labelLeft.setHorizontalTextPosition(JLabel.CENTER);
        labelLeft.setFont(new Font("Serif", Font.BOLD, 16));

        // Set the alignment and the font of the label
        labelCenter.setHorizontalAlignment(JLabel.CENTER);
        labelCenter.setFont(new Font("Serif", Font.BOLD, 30));

        // Add labels to the container
        add(labelLeft);
        add(labelCenter);
        add(labelRight);
    }
}