Here you can find the source of getLocalhostAddress()
private static String getLocalhostAddress()
//package com.java2s; /*/* www . j a v a 2 s . co m*/ * Copyright (C) 2016 Maximilian Pawlidi * * 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.InetAddress; import java.net.UnknownHostException; public class Main { private static String getLocalhostAddress() { String localhostAdress = null; try { final InetAddress localHost = InetAddress.getLocalHost(); if (localHost != null) { localhostAdress = localHost.getHostAddress(); } } catch (UnknownHostException ex) { // ignore exception } return localhostAdress; } }