Here you can find the source of getHostName(InetAddress ia)
public static String getHostName(InetAddress ia)
//package com.java2s; /*//from ww w .j a v a 2 s. c o m * * Copyright 2013 LinkedIn Corp. All rights reserved * * 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; public class Main { public static String getHostName(InetAddress ia) { return ia.getHostName(); } }