How to Close all browser window using java?

To close all browser Windows using Java, you can use the Java.awt.Desktop class if you're targeting the default browser. However, a more reliable approach for closing specific browser instances, especially during automation tasks, is to use libraries like Selenium WebDriver. With Selenium, you can invoke driver.quit() to close all browser Windows controlled by the WebDriver instance. Alternatively, you can execute system commands to kill the browser process, but this is less graceful and platform-dependent.