Java Virtual Machine

鴻蒙HarmonyOS是一款自主研發、面向未來物聯網技術的操作系統，雖然與Android操作系統有著相似之處，但其功能與特色也是值得開發者深入探索的。本書的主要目的是幫助不熟悉此系統的開發者循序漸進地掌握HarmonyOS的諸多關鍵特性，從HarmonyOS基礎知識、Java UI框架，到Ability開發、HarmonyOS高級特性開發；從HarmonyOS數據管理、HarmonyOS與媒體、HarmonyOS與智能設備，到面向實戰的仿微信程序開發、仿淘寶程序開發等。在本書的最後，還有整體的項目練習。通過對這本書的學習，讀者可以初步掌握HarmonyOS應用開發的方法。

本書是一本經典而實用的Spring學習指南，介紹了Spring使用框架、Spring Boot，以及Spring系統中的其他組成部分。 本書分為4個部分，共18章。第1部分(第1章～第6章)涵蓋了構建Spring應用的基礎知識。第2部分(第7章～第10章)討論了如何講Spring應用與其他應用進行集成。第3部分(第11章～第14章)探討了Spring對反應式編程提供的全新支持。第4部分(第15章～第18章)介紹了如何做好應用投入生產環境前的準備工作，以及如何進行部署。 本書適合剛剛開始學習Spring Boot和Spring框架的Java開發人員閱讀，也適合想要超越基礎知識並學習Spring新特性的經驗豐富的Spring開發者參考。

Giggles are guaranteed in this brand-new series by Hazel Gardner and bestselling illustrator Nikki Dyson – Penguin and Pup's first adventure, The Perfect Christmas, will have children rolling around the Christmas tree laughing.Introducing your new favourite characters – Penguin and Pup – in this laugh-out-loud Christmassy caper from brand-new talent Hazel Gardner and bestselling illustrator, Nikki Dyson. GIGGLES GUARANTEED.Meet Penguin: he's thoughtful, kind and loyal. He can be a bit cautious with new things, and he's very sensible. Pup, on the other hand, is a fun-loving whirlwind! She always thinks big and sometimes gets a bit carried away. . .Like lots of friends, Penguin and Pup like VERY different things. Especially when it comes to Christmas. Penguin is all about the simple things: a perfectly-sized Christmas tree, and maybe a mince pie. Pup, on the other hand, wants a GIANT snow machine and a ten-course feast. It's a recipe for disaster, and LOTS of laughter.So whether you are

A lift-the-flap book to imagine what the world will be like by the end of the 21st centuryJoin futurologist Tom Cheesewright on a tour of our world, decades into the future.Eight scenes show readers what wonders await in our cities, our landscapes, inside our own bodies and of course in the expanse of outer space. Lift the flaps to find out what new things we'll be able to do, how new technology will work, and what changes we can expect about the way we live.There'll be virtual assistants to answer all our questions and guide us. There'll be all sorts of gear we can put on to let us explore the oceans and the skies closer than ever before. Gigantic new structures will straddle land and ocean, with soaring elevators that can carry us all the way to space. Engineers will find ways to help people live on Mars, or explore the galaxy. Tiny robotic pills can monitor our health from the inside, and keep us alive for longer.The Future is a place of great hope and excitement, and it's closer th

本書面向藍橋杯全國軟件和信息技術專業人才大賽的軟件類賽項(以下簡稱藍橋杯軟件類大賽)，從數據結構和算法的維度幫助廣大讀者訓練編程思維和計算思維，掌握編程方法和解題技巧。 本書共10章，第1章主要介紹了藍橋杯軟件類大賽的基本情況，歸類匯總了其涉及的知識點(包括算法知識點)，詳細介紹了其在線評測系統以說明評分情況。第2～10章則由淺入深、由易到難地介紹了各類知識點，包括手算題和雜題、基礎數據結構、基本算法、搜索、高級數據結構、動態規劃、數學、字符串、圖論等，對於每一類知識點都簡明扼要地進行說明，並以真題作為例題進行細緻講解，以更好地幫助讀者實現學用結合的學習效果。需要特別說明的是，本書例題的代碼部分，分別由C++、Python、Java三種語言來實現(書中僅提供以C++、Python語言編寫的代碼，以Java語言編寫的代碼可從本書的配套數字資源中獲取)。 本書不僅適合作為藍橋杯軟件類大賽參賽者的備賽用書，還適用於備賽其他編程或算法類大賽(如全國青少年信息學奧林匹克競賽NOI、國際大學生程序設計競賽ICPC、中國大學生程序設計競賽CCPC、中國高校計算機大賽?團體程序設計天梯賽GPLT等)。此外，本書還可作為本科生和研究生的相關算法課程的教材或參考資料。

本書以一個名為O-stock的項目為主線，介紹雲、微服務等概念以及Spring Boot和Spring Cloud等諸多Spring項目，並介紹如何將O-stock項目一步一步地從單體架構重構成微服務架構，進而將這個項目拆分成眾多微服務，讓它們運行在各自的Docker容器中，實現持續集成/持續部署，並最終自動部署到雲環境(AWS)的 Kubernetes集群中。針對在重構過程中遇到的各種微服務開發會面臨的典型問題(包括開發、測試和運維等問題)，本書介紹了解決這些問題的核心模式，以及在實戰中如何選擇特定Spring Cloud子項目或其他工具(如 KeyCloak、Zipkin、ELK技術棧)解決這些問題。本書適合擁有構建分布式應用程序的經驗、擁有Spring的知識背景以及對學習構建基於微服務的應用程序感興趣的Java開發人員閱讀。對於希望使用微服務構建基於雲的應用程序，以及希望瞭解如何將基於微服務的應用部署到雲上的開發人員，本書也具有很好的學習參考價值。

A bright and sparkling new collection of Phoebe and Her Unicorn comics. In this exciting new collection of Phoebe and Her Unicorn comics, 10-year-old Phoebe Howell and her magical unicorn best friend, Marigold, enjoy a series of fantastical adventures. Phoebe goes back in time to meet her father as a kid and makes some surprising discoveries. Marigold reveals that she sometimes puts the world on mute, a power that Phoebe quickly learns is easy to overuse. And at the Unicorn Award Ceremony, the pair launch a campaign to get Marigold the highest honor. It's all part of the unique bond within one of the most memorable friendships in recent comics history.

本書是面向藍橋杯全國軟件和信息技術專業人才大賽的軟件類賽項(以下簡稱藍橋杯軟件類大賽)的入門圖書，從數據結構和算法的維度幫助廣大讀者訓練編程思維和計算思維，掌握編程方法和解題技巧。 本書共10章，第1章主要介紹了藍橋杯軟件類大賽的基本情況，歸類匯總了其涉及的知識點(包括算法知識點)，詳細介紹了其在線評測系統以說明評分情況。第2～10章則由淺入深、由易到難地介紹了各類知識點，包括手算題和雜題、基礎數據結構、基本算法、搜索、高級數據結構、動態規劃、數學、字符串、圖論等，對於每一類知識點都簡明扼要地進行說明，並以真題作為例題進行細緻講解，以更好地幫助讀者實現學用結合的學習效果。需要特別說明的是，本書例題的代碼部分，分別由C++、Python、Java三種語言來實現(書中僅提供以C++、Python語言編寫的代碼，以Java語言編寫的代碼可從本書的配套數字資源中獲取)。 本書不僅適合作為藍橋杯軟件類大賽參賽者的備賽用書，還適用於備賽其他編程或算法類大賽(如全國青少年信息學奧林匹克競賽NOI、國際大學生程序設計競賽ICPC、中國大學生程序設計競賽CCPC、中國高校計算機大賽?團體程序設計天梯賽GPLT等)。此外，本書還可作為本科生和研究生的相關算法課程的教材或參考資料。

The synergy between Artificial Intelligence (AI) and the Internet of Things (IoT) is shaping the future of technology and opening a world of unprecedented possibilities. Artificial Intelligence of Things (AIoT): Current and Future Trends brings together researchers and developers from a wide range of domains to share with readers their ideas about how to implement technical advances, application areas for intelligent systems, and development of new services and smart devices connected to the Internet through a variety of wireless technologies. Parallel to this, new capabilities such as pervasive sensing, multimedia sensing, machine learning, deep learning, and computing power are opening the way to new domains, services, and business models beyond the traditional mobile Internet. These new areas in turn come with various requirements in terms of reliability, quality of service, and energy efficiency. In Artificial Intelligence of Things readers learn about the challenges and requiremen

"My favourite contemporary children's author is Philip Reeve" - Charlie Higson An epic, thrilling, action-packed city-eat-city adventure starring brave fighter Tamzin Pook, who must travel from the spectator sport combat arena in Margate to the Thunder City, where a chilling, ruthless villain has seized power. She will face Revenants - animal/machine hybrids with ferocious appetites - dangerous mercenaries and must learn to trust a group of oddballs whose eccentricities mask their huge hearts and steadfast courage. The Mortal Engines series has sold over half a million copies in the UK alone via Nielsen Bookscan.Its epic appeal crosses all age ranges Reeve’s novels have won the Guardian Children’s Award, Blue Peter Award, Smarties Gold Prize and the Carnegie Medal. Mortal Engines is now a feature film produced by Lord of the Rings director, Peter Jackson

A YA true account of seven Danish teens who dared to fight the Nazi war machine, from a National Book Award– and Newbery Honor–winning author.Overwhelmed by Nazi aggression at the outset of World War II, Denmark did not resist German occupation. Deeply ashamed of his nation's leaders, fifteen-year-old Knud Pedersen resolved with his brother and a handful of schoolmates to take action against the Nazis into their own hands. Naming their secret club after the fiery British leader, the young patriots in the Churchill Club committed countless acts of sabotage, infuriating the Germans, who eventually had the boys tracked down and arrested. But their efforts were not in vain: the boys' exploits and eventual imprisonment helped spark a full-blown Danish resistance. Interweaving his own narrative with the recollections of Knud himself, Phillip Hoose tells young adult readers the inspiring story of these young war heroes in The Boys Who Challenged Hitler. This thoroughly-researched and document

本書主要介紹基於Spring框架構架企業級應用程序的技術體系和工程實踐。全書從Spring概述、Spring Boot、Spring Cloud和響應式Spring等4個方面由淺入深地介紹了Spring。本書首先介紹了Spring框架的基礎概念，然後介紹了Spring Boot的核心功能特性，接著介紹了用於構建主流微服務架構的Spring Cloud，最後講解了響應式編程技術。本書通過3個完整的案例來系統展示具體的實現過程。本書面向廣大服務端開發人員，讀者不需要有很高的技術水平，也不限於特定的開發語言，但熟悉Java EE常用技術並掌握一定的系統設計基本概念有助於更好地理解書中的內容。同時，本書也適合對Spring框架有興趣的開發人員閱讀，希望本書能為讀者的日常學習和開發工作帶來啟發與幫助。