Here you can find the source of getNetworkInterfaces()
public static List<NetworkInterface> getNetworkInterfaces() throws java.io.IOException
//package com.java2s; /**//from ww w. j ava 2 s.co m * Copyright (C) 2008 10gen Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.net.*; import java.util.*; public class Main { public static List<NetworkInterface> getNetworkInterfaces() throws java.io.IOException { List<NetworkInterface> lst = new ArrayList<NetworkInterface>(); Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces(); while (e.hasMoreElements()) lst.add(e.nextElement()); return lst; } }