testinetaddress.java

java课件及例程有一些PPT及一些例程

import java.net.*;
import java.io.*;
class TestInetAddress{
    public static void main(String[] args){
        String host = "localhost";
        byte a[] = {10,10,11,11};
        if(args.length == 1){
            host = args[0];   
        }
            try{
            	    InetAddress myAddr = InetAddress.getByName(host);
	            System.out.println("Canonical Host Name = "+myAddr.getCanonicalHostName());
	            System.out.println("主机地址为："+myAddr.getHostAddress());
	            System.out.println("主机名为："+myAddr.getHostName());
	            System.out.println("是否loopback地址？："+myAddr.isLoopbackAddress());
            }catch(UnknownHostException e){System.out.println("Error"+e.getMessage());}
           
    }
}