Setting JVM/JRE to use Windows Proxy Automatically

Question

I did see the question about setting the proxy for the JVM but what I want to ask is how one can utilize the proxy that is already configured (on Windows).

Here is a

Answer 1

try{
    System.setProperty("java.net.useSystemProxies", "true");
    String prx = ProxySelector.getDefault().select(new URI("http://www.google.com")).get(0).address().toString();
    JOptionPane.showMessageDialog(null, prx);
} catch(Exception e){
    JOptionPane.showMessageDialog(null, "no proxy");
}