public void getIPInformation() {
		try {
			Pattern ipAddressPattern = Pattern.compile("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}");
			Process ipconfig = Runtime.getRuntime().exec("ipconfig");
			BufferedReader in = new BufferedReader(new InputStreamReader(ipconfig.getInputStream()));
			String s = null;
			while((s = in.readLine()) != null) {
				Matcher m = ipAddressPattern.matcher(s);
				if(m.find()) {
					String ip = m.group();
					if(s.toLowerCase().contains("gateway")) {
						defaultGateway = ip;
					} else if(s.toLowerCase().contains("ip") && s.toLowerCase().contains("address")) {
						ipAddress = ip;
					}
				}
				System.out.println(s);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(defaultGateway == null) {
			System.out.println("Could not find default gateway.");
		}
		if(ipAddress == null) {
			System.out.println("Could not find IPv4 address.");
		}
	}