import java.applet.Applet;
import java.awt.Button;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.SocketPermission;

public class SignedApplet extends Applet {
	
	/**
	 * @see java.applet.Applet#init()
	 */
	public void init() {
		super.init();

		//Create and set up the window.
		final Frame frame = new Frame();

		final Button button = new Button("Request Permission");
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				checkWebPermission();
			}
		});
		frame.add(button);

		//Display the window.
		frame.pack();
		frame.setVisible(true);
	}
	
	void checkWebPermission() {
		final SecurityManager sm = System.getSecurityManager();
		
		if (null == sm)
			throw new RuntimeException("Security manager is null"); 
		
		sm.checkPermission(new SocketPermission("www.google.com", "connect"));
		System.out.println("Got permission to connect.");
	}

}