Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2013 4th Line GmbH, Switzerland
 *
 * The contents of this file are subject to the terms of either the GNU
 * Lesser General Public License Version 2 or later ("LGPL") or the
 * Common Development and Distribution License Version 1 or later
 * ("CDDL") (collectively, the "License"). You may not use this file
 * except in compliance with the License. See LICENSE.txt for more
 * information.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 */

import java.net.InetAddress;

public class Main {
    /**
     * DNS reverse name lookup.
     *
     * @param includeDomain <code>true</code> if the whole FQDN should be returned, instead of just the first (host) part.
     * @return The resolved host (and domain-) name, or "UNKNOWN HOST" if resolution failed.
     */
    public static String getLocalHostName(boolean includeDomain) {
        try {
            String hostname = InetAddress.getLocalHost().getHostName();
            return includeDomain ? hostname
                    : hostname.indexOf(".") != -1 ? hostname.substring(0, hostname.indexOf(".")) : hostname;

        } catch (Exception ex) {
            // Return a dummy String
            return "UNKNOWN HOST";
        }
    }
}