DesktopUtility.java

public class DesktopUtility {
    public static void main(String[] args) throws URISyntaxException, IOException {
      
        Desktop desktop = java.awt.Desktop.getDesktop();

        if(!Desktop.isDesktopSupported())
            return;

        // Opens composing window of default mail client
        desktop.mail(new URI("mailto:<email address>"));
        // Launches default browser
        desktop.browse(new URI("http://techstackjava.com/"));
        // Opens a folder containing the file
        desktop.browseFileDirectory(new File("/opt"));
        // Opens a file in associate application
        desktop.open(new File("/opt/users.txt"));
        // Prints a file with native desktop printing facility
        desktop.print(new File("/opt/report.txt"));
      
        }
}