SORRY I don't mention you are using an applet. you can try this: import java.net.*; import java.applet.Applet; import java.awt.Graphics; public class AppletIp extends Applet{ public void AppletIp() {}; public void paint(Graphics g) { InetAddress host=null; try {host=InetAddress.getLocalHost(); } catch (Exception e) {} String ip=host.getHostAddress(); System.out.print("IP: "+ip); showStatus(ip); } public static void main (String argv[]) throws Exception { } } it ca