Here you can find the source of getLocalHost()
public static InetAddress getLocalHost() throws UnknownHostException
//package com.java2s; //License from project: Apache License import java.net.InetAddress; import java.net.UnknownHostException; public class Main { public static InetAddress getLocalHost() throws UnknownHostException { return InetAddress.getLocalHost(); }/*w w w .j a v a2s .c o m*/ }