Java Swing-TitleBar Icon

Java Swing is a GUI widget toolkit for Java. It is commonly used for creating desktop applications with a graphical user interface. One of the key features of Swing is the ability to customize the appearance of the application, including the title bar icon.

Setting the Title Bar Icon

To set the icon for the title bar, you can use the setIconImage() method of the JFrame class. Here is an example:

import javax.swing.*;

public class MainWindow extends JFrame {
    public MainWindow() {
        // Set the title of the window
        setTitle("My Application");

        // Set the icon for the title bar
        setIconImage(new ImageIcon(getClass().getResource("/path/to/icon.png")).getImage());
    }
}

In this example, we first set the title of the window using the setTitle() method. Then, we set the icon for the title bar using the setIconImage() method. The IconImage is created from an ImageIcon object, which we load from a file using the getResource() method of the Class object.

Icon Format

The icon for the title bar should be in the ico or png format. The recommended size for the icon is 16x16 pixels. However, some operating systems may require larger or smaller icons, so it is important to test your application on different platforms.

Conclusion

Setting the title bar icon in a Java Swing application is a simple process that can greatly improve the appearance of your application. By using a custom icon, you can make your application stand out and be easily recognizable to users. Remember to choose an appropriate icon format and size, and test your application on different platforms to ensure that your icon looks good on all devices.