Java 网络接口概述

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import java.net.InetAddress;  

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import java.net.NetworkInterface;  

/**

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**/

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import java.util.Enumeration;  

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public class Main {  

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 public static void main(String argv[]) throws Exception {  

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  Enumeration enumInterfaces = NetworkInterface.getNetworkInterfaces();  

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  while (enumInterfaces.hasMoreElements()) {  

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     NetworkInterface net = (NetworkInterface) enumInterfaces.nextElement();  

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     System.out.println("Network Interface Display Name: " + net.getDisplayName());  

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     System.out.println(net.getDisplayName() + " is up and running ?" + net.isUp());  

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     System.out.println(net.getDisplayName()+" Supports Multicast: "+net.supportsMulticast());  

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     System.out.println(net.getDisplayName() + " Name: " + net.getName());  

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     System.out.println(net.getDisplayName() + " Is Virtual:  " + net.isVirtual());  

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     System.out.println("IP addresses:");  

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     Enumeration enumIP = net.getInetAddresses();  

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     while (enumIP.hasMoreElements()) {  

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