Desktop API - Opening system browser

[rru96]

What I am trying to accomplish is take a string given by a user in a JTextField, Pass that string to a JInternalFrame, and when I click on the JInternalFrame, have the systems default browser open using the supplied String passed into the JTextField. Code I have so far is below:

				
				@Override
				public void mouseClicked(MouseEvent arg0) {
					try {
						String x = billURL2.getText();
						url = new URL("http://" + x);
						System.out.println(url);
					} catch (MalformedURLException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					try {
						uri = new URI(url.toString());
					} catch (URISyntaxException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					try {
						desktop.browse(uri);
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					System.out.println("MOUSE CLICKED");
				}
			});
			iFrame.show();
			
			main.add(iFrame);
		}
	}
}

I am able to input the web address. I am able to get the JInternalFrame to popup. But as soon as I click on the JInternalFrame I get a NullPointerException error. I assume it is coming from the line (19): desktop.browse(uri); , but I have looked over the API for Desktop and that didnt help clear anything up. If someone could point me in a direction of what I am doing to trip the NPE I would greatly appreciate it.

[jim829]

You need to show more of your code for me to help you. Did you assign an instance of Desktop to desktop? Are you checking that desktop is not null or that the URI is properly being obtained by the mouse? System.out.println() is your friend.

Regards,
Jim

[rru96]

I realized my problem thanks to you. I was missing Desktop.getDesktop(); when I first declared my Desktop

private Desktop desktop = Desktop.getDesktop();

Thanks