Here you can find the source of compareAddresses(InetAddress one, InetAddress two)
public static int compareAddresses(InetAddress one, InetAddress two)
//package com.java2s; /*/*from ww w . ja v a2 s. c o m*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 { /** compareTo for InetAddresses */ public static int compareAddresses(InetAddress one, InetAddress two) { byte[] oneBytes = one.getAddress(); byte[] twoBytes = two.getAddress(); if (oneBytes != twoBytes) { for (int i = 0; i < oneBytes.length; i++) { if (i >= twoBytes.length) return -1; // same as far as they go, but shorter... if (oneBytes[i] < twoBytes[i]) return -1; if (oneBytes[i] > twoBytes[i]) return 1; } if (oneBytes.length > twoBytes.length) return 1; // same as far as they go, but longer... } return 0; } }