localhostdemo.java

本程序是用来显示本机的IP地址和其他的web服务器的IP地址和字符地址的。

import java.net.*;
public class LocalHostDemo 
{	public static void main(String args[])
	{System.out.println ("Looking up local host");
		try
		{	InetAddress localAddress = InetAddress.getLocalHost();
			System.out.println ("IP address : " +localAddress.getHostAddress() );   }
		catch (UnknownHostException uhe)
		{
			System.out.println ("Error - unable to resolve localhost");
		}
	}
}