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Master the art of automated testing using Selenium with Java in this comprehensive guide. Whether you're a beginner or an experienced tester, the book equips you with the knowledge and techniques to build robust and maintainable test suites, ensuring the quality and reliability of your web applications. This book starts introducing the basics of automated testing and the importance of Selenium. It then covers the setup and configuration of the Selenium WebDriver in Java, providing a solid foundation for your testing environment. You'll learn essential aspects of Selenium testing in Java, including working with different browsers, locating web elements using locators, and performing actions on them. From there, you'll explore how to handle dynamic web pages and effective wait mechanisms and verifications to ensure accurate and reliable test results. The book also guides you in setting up Selenium in Java for continuous integration and emphasizes best practices for test codeorganization and maintainability, such as the Page Object Model (POM) and structuring test suites effectively. By the end, you'll have the expertise to address advanced scenarios, such as working with iframes, and know how TestNG enhances Selenium automation, enabling structured tests, data-driven insights, and swift parallel executions. Throughout the book, you'll benefit from real-world examples and practical exercises that reinforce the concepts. The clear explanations and step-by-step guidance make it easy to follow along and apply the knowledge to your own testing projects. What You Will Learn Understand the fundamentals of automated testing and the role of Selenium in web application testing Set up the Selenium WebDriver in Java and configure the testing environment Work with different web browsers and their drivers to perform cross-browser testing Identify and locate web elements using various locators, such as IDs, class names, CSS selectors, and XPath expressions Perform actions on web elements, such as clicking buttons, entering text, submitting forms, and navigating through web pages Handle dynamic pages by implementing effective wait mechanisms, including implicit waits, explicit waits, and fluent waits Verify and assert expected conditions and outcomes using assertions and verification techniques provided by Selenium in Java Apply best practices for test code organization and maintainability, including using the Page Object Model (POM) design pattern Handle advanced scenarios, such as working with iframes, and elevating Selenium automation through TestNG's structured frameworks, data utilization, and parallel processing Who This Book For Software testers, quality assurance professionals, and developers interested in mastering automated testing with Selenium and Java. Suitable for various experience levels. Offers practical insights and techniques to automate web application testing accurately and reliably. Benefits testers, developers, and individuals familiar with Java and web testing, empowering them to write robust, maintainable test code and integrate Selenium seamlessly into their workflows.

Dodge the common mistakes that even senior developers make, take full advantage of static analysis tools, and deliver robust and error-free Java code.Whenever you make a mistake writing Java, it's almost guaranteed that someone else has made it before! In 100 Java Mistakes and How To Avoid Them you'll learn about the common and the not-so-common antipatterns, errors, and tricky bits that trip up almost every Java developer. Inside 100 Java Mistakes and How To Avoid Them you will learn how to: Write better Java programs Recognize common mistakes during programming Create fewer bugs and save time for debugging and testing Get help from static analyzers during programming Configure static analysis tools to reduce the number of false reports Extend static analysis tools with custom plugins Each Java mistake in this handy guide comes with an illustrative code sample, an explanation of why the mistake occurs, and an actionable “ways to avoid this” section to help you dodge the error. Plus, you'll benefit from useful static analysis sidebars that let you know when mistakes will—and won't—be spotted by static analysis tools. Foreword by Cay Horstmann. About the technology Minor bugs in development can become major problems in production. It's much better to spot and fix your mistakes before they get that far! This one-of-a-kind book shines a light on the most common Java slip-ups and shows you exactly how to avoid making them in the first place. About the book 100 Java Mistakes and How To Avoid Them highlights 100 Java coding errors—from beginner missteps to mistakes even Java experts don't know they're making. Each case includes clear examples to show you what to look for and concrete troubleshooting advice. You'll learn to use static analysis tools like IntelliJ IDEA and SonarLint to ensure you're consistently delivering exceptional Java, discover how unit tests and defensive coding can keep your code clean, and even learn to write your own bug-busting plugins. What's inside Recognize bugs and antipatterns during programming Highly-effective debugging and testing Get help from static analyzers About the reader For Java developers of all skill levels. About the author Tagir Valeev is a technical lead in JetBrains and a Java Champion. He designed and developed many code inspections for IntelliJ IDEA built-in static analyzer. The technical editor on this book was Jean-François Morin. Table of Contents 1 Managing code quality 2 Expressions 3 Program structure 4 Numbers 5 Common exceptions 6 Strings 7 Comparing objects 8 Collections and maps 9 Library methods 10 Unit testing A Static analysis annotations B Extending static analysis tools

In uralten Spielen wie Schach oder Go können sich die brillantesten Spieler verbessern, indem sie die von einer Maschine produzierten Strategien studieren. Robotische Systeme üben ihre Bewegungen selbst. In Arcade Games erreichen lernfähige Agenten innerhalb weniger Stunden übermenschliches Niveau. Wie funktionieren diese spektakulären Algorithmen des bestärkenden Lernens? Mit gut verständlichen Erklärungen und übersichtlichen Beispielen in Java und Greenfoot können Sie sich die Prinzipien des bestärkenden Lernens aneignen und in eigenen intelligenten Agenten anwenden. Greenfoot (M.Kölling, King's College London) und das Hamster-Modell (D.Bohles, Universität Oldenburg) sind einfache, aber auch mächtige didaktische Werkzeuge, die entwickelt wurden, um Grundkonzepte der Programmierung zu vermitteln. Wir werden Figuren wie den Java-Hamster zu lernfähigen Agenten machen, die eigenständig ihre Umgebung erkunden. Die zweite Auflage enthält neue Themen wie'Genetische Algorithmen'und'Künstliche Neugier'sowie Erklärungen zu aktuellen Algorithmen wie A3C und PPO (wurde u.a. für das Finetuning von ChatGPT verwendet), außerdem Korrekturen und Überarbeitungen.

This book will teach you how to use the Spring Framework to build Java-based applications, web applications, and microservices. Aimed at beginners, it has been revised and expanded to reflect the latest features and best practices for Spring 6. Authors Joseph Ottinger and Andrew Lombardi will get you started using Spring Framework 6 and its ecosystem, walking you through all the best practices in modern application development. You'll see how Spring has drastically and positively affected the way applications are designed and programmed in Java, and how to build apps with the Spring mindset. Along the way, you will learn many aspects of the Spring ecosystem with easy-to-understand applications designed to teach you not only the technology, but also the practices that benefit the most from Spring. Starting with the basics, you'll learn gradually, including topics such as the configuration and declaration of beans, the application lifecycle, how todeploy a Spring application into a Java EE application, Spring Reactive, Spring Web, Spring Boot, and Spring Cloud. After completing this book, you'll be prepared to develop your own scalable, modular Spring-based applications. What You Will Learn Discover the most common use cases encountered in the real worldLearn the proper way of testing with the Spring frameworkCreate reliable, modular softwareBuild skills that will translate well across all languages and environmentsIntegrate and use data access and persistence frameworks such as Hibernate, JPA, and MongoDBGet started with the most common, most-used Spring features Who This Book Is For Those who are new to Spring or for those who have experience with Spring but want to learn what's new in Spring 6. This book assumes you have some prior coding experience inJava, but many core concepts in Java are discussed as they're encountered.

This open access book improves the users'skills needed to implement models for performance evaluation of digital infrastructures. Building a model is usually a relatively easy task, but making it an accurate representation of the phenomenon to be reproduced is a completely different matter. It is well-known that to increase the ability to build reliable models it is necessary to accumulate experience. The book addresses this need by presenting a collection of case studies of increasing complexity. Readers are introduced to the modeling process gradually, learning the basic concepts step-by-step as they go through the case studies. Queueing Networks are used to design the models solved with simulation and analytical techniques from the open source Java Modelling Tools (JMT). Among the models analyzed there are systems for optimizing performance, identifying bottlenecks, evaluating the impact of the variability of traffic and service demands, analyzing the effects of synchronization policies in parallel computing. Four case studies derived from real-life scenarios are also presented: a surveillance system, autoscaling load fluctuations, web app workflow simulation, and crowd computing platform. This book serves as a reference tool for graduate and senior-level computer science students in courses of performance evaluation and modeling, as well as for researchers and practitioners.

Discover the exciting new APIs introduced by Java's Project Loom. This quick guide covers all the essential concepts the Java developer needs in order to understand virtual threads, structured concurrency, and scoped values. Authors Ron Veen and David Vlijmincx clearly explain the superiority of virtual threads, introduced in Java 21, over the traditional Java threads of the past 25 years. Then they dive into how structured concurrency streamlines interactions by treating related threads as a unified unit of work, akin to the impact of structured programming on regular programming. From there, the authors explore the third Project Loom API and scoped values, clarifying their advantages over regular ThreadLocals and providing efficient usage insights. The book concludes with an exploration of common scheduling strategies. By the end of this book, you will have a solid understanding of the concepts behind Project Loom and will be able to immediately apply this knowledge to your own code. You Will Discover what virtual threads are, why they were created, and how to use them in your code Gain insight into how concurrency improves the observability of code Write your own StructuredTaskScopes tailored to your needs Understand why you should replace ThreadLocals with Scoped Values Know the different strategies for multithreaded computer programs Who This Book is For Java developers of any level. This knowledge is so fundamental to staying relevant in the Java job market that every developer needs to understand it for their career development.

Here is your in-depth guide to cryptography and cryptanalysis in Java. This book includes challenging cryptographic solutions that are implemented in Java 21 and Jakarta EE 11. It provides a robust introduction to Java 21's new features and updates, a roadmap for Jakarta EE 11 security mechanisms, a unique presentation of the'hot points'(advantages and disadvantages) from the Java Cryptography Architecture (JCA), a new chapter on Quantum cryptography, and more. The book dives into the classical simple cryptosystems that form the basis of modern cryptography, with fully working solutions (encryption/decryption operations). Pseudo-random generators are discussed as well as real-life implementations. Hash functions are covered along with practical cryptanalysis methods and attacks, asymmetric and symmetric encryption systems, signature and identification schemes. The book wraps up with a presentation of lattice-based cryptography and the NTRU framework library. Modern encryption schemes for cloud and big data environments (homomorphic encryption and searchable encryption) also are included. After reading and using this book, you will be proficient with crypto algorithms and know how to apply them to problems you may encounter. New to This Edition: The modernized Second Edition is updated to reflect the latest language features in Java 21 and Jakarta 11, along with the introduction of a new chapter on Quantum Cryptography (Chapter 6). What You Will Learn Develop programming skills for writing cryptography algorithms in Java Dive into security schemes and modules using Java Explore “good” vs “bad” cryptography based on processing execution times and reliability Play with pseudo-random generators, hash functions, etc. Leverage lattice-based cryptography methods, the NTRU framework library, and more Who This Book Is For Those who want to learn and leverage cryptography and cryptanalysis using Java. Some prior Java and/or algorithm programming exposure is highly recommended.

Delve into the inner workings of JVM and explore internals, memory management, and performance optimizationKey FeaturesUncover the intricacies of JVM, from class loading to garbage collection, and moreMaster JVM memory management for efficient resource use and reduced overheadApply JVM knowledge through case studies, reinforcing your understanding of internalsPurchase of the print or Kindle book includes a free PDF eBookBook DescriptionMastering the Java Virtual Machine is a comprehensive guide that will take you into the heart of the Java programming language, guiding you through the intricate workings of the Java Virtual Machine (JVM) and equipping you with essential skills to become a proficient Java developer. You'll start by understanding the JVM, exploring its architecture and how it executes Java code. Through detailed explanations and real-world examples, you'll gain a deep understanding of JVM internals, enabling you to write efficient and optimized Java applications. As you progress, you'll delve into memory management and execution, unraveling the complexities of heap and stack management, garbage collection, and memory profiling. You'll learn how memory is allocated and reclaimed in the JVM, as well as how to optimize memory usage and identify performance bottlenecks in your applications. With this knowledge, you'll be able to create Java programs that are not only robust but also highly performant. By the end of this Java book, you'll have the skills needed to excel in Java programming, writing efficient and maintainable code.What you will learnUnderstand JVM architecture and bytecode executionExplore memory management and optimize memory usageCompare and evaluate alternative JVMs like GraalVMMaster reflection for dynamic behavior in Java applicationsUse Java annotation processors for code generationGet to grips with reactive programming principles for scalable applicationsWho this book is forThis book is for Java developers looking to deepen their expertise in the Java Virtual Machine (JVM) and optimize Java applications for peak performance. It is ideal for both intermediate-level and seasoned professionals, who want to explore specific aspects such as JVM internals, memory management, threading, security, and performance tuning.

Sharpen your Java skills and boost your potential as an IT specialist. This book introduces you to the basic Java features and APIs needed to prepare for a career in programming and development. You'll first receive an introduction to Java and then explore language features ranging from comments though exception/error handling, focusing mainly on language syntax and a few select syntax-related APIs. This constitutes the heart of the book, and you'll use these building blocks to construct simple Java programs, and learn where Java's implementations of expressions (and operators), and statements diverge from other languages. The final few chapters tour some additional APIs such as the Math class, related types, String and StringBuffer, and System. Along the way you'll discover some interesting programs, such as Graph (a sine/cosine wave-plotting application) and WC (a word-counting application). Two appendixes provide quick references to Java's supported reserved words, and to Java's supported operators. Equipped with this knowledge, Learn Java Fundamentals will provide you the pathway to explore additional APIs on your own, and increase your Java awareness. What You'll Learn Understand the basics of Java applications and APIs Study language features such as comments, identifiers, variables, types, and literals. Explore operators, expressions, statements, and other key features such as classes, objects, class extension, and class abstraction. Who This Book Is For Developers, programmers, and students with little or no Java experience

Don't let security be an afterthought. Spring Security in Action, Second Edition is your vital companion to robust, secure applications that are protected right from the first line of code.Spring Security in Action, Second Edition is a revised version of the bestselling original, fully updated for Spring Boot 3 and Oauth2/OpenID Connect. In Spring Security in Action, Second Edition you will learn essential security skills including how to: Implement and customize authentication and authorization Set up all components of an OAuth2/OpenID Connect system Utilize CRSF and CORS configurations Secure Spring reactive applications Write tests for security configurations Whether you're a beginner or a pro, Spring Security in Action, Second Edition teaches you how to secure your Java applications from the ground up. Author Laurentiu Spilca distills his years of experience as a skilled Java and Spring developer into an indispensable guide to everything security—from authentication and authorization, to testing security configurations. This new edition covers the latest patterns for application-level security in Spring apps, demonstrating how Spring Security simplifies every step of the security process. Foreword by Joe Grandja. About the technology Spring Security makes it much, much easier to secure enterprise-scale Java applications. This powerful framework integrates with Spring apps end to end, with “secure by design” principles and ready-to-use features that help you implement robust authorization and authentication and protect against data theft and intrusions. And like everything else in the Spring ecosystem, it's free, open source, and backed by the awesome team at VMWare. About the book Spring Security in Action, Second Edition updates this bestselling guide to Spring Security to include deep coverage of OAuth2/OpenID Connect and security configuration using the new SecurityFilterChain. The crystal clear explanations and relevant examples, teach you how to build your own authorization server, configure secure endpoints, and prevent cross-site scripting and request forgery attacks. What's inside Custom authentication and authorization CRSF and CORS configurations Secure Spring reactive applications Write tests for security configurations About the reader For experienced Java and Spring developers. About the author Laurentiu Spilca is a skilled Java and Spring developer and an experienced technology instructor. He is also the author of Manning's Spring Start Here and Troubleshooting Java. Table of Contents PART 1 1 Security today 2 Hello, Spring Security PART 2 3 Managing users 4 Managing passwords 5 A web app's security begins with filters 6 Implementing authentications PART 3 7 Configuring endpoint-level authorization: Restricting access 8 Configuring endpoint-level authorization: Applying restrictions 9 Configuring CSRF protection 10 Configuring CORS 11 Implementing authorization at the method level 12 Implementing filtering at the method level PART 4 13 What are OAuth 2 and OpenID Connect? 14 Implementing an OAuth 2 authorization server 15 Implementing an OAuth 2 resource server 16 Implementing an OAuth 2 client PART 5 17 Implementing security in reactive applications PART 6 18 Testing security configurations

This book provides an introduction to both heterogeneous execution and managed runtime environments (MREs) by discussing the current trends in computing and the evolution of both hardware and software. To this end, it first details how heterogeneous hardware differs from traditional CPUs, what their key components are and what challenges they pose to heterogenous execution. The most ubiquitous ones are General Purpose Graphics Processing Units (GPGPUs) which are pervasive across a plethora of application domains ranging from graphics processing to training of AI and Machine Learning models. Subsequently, current solutions on programming heterogeneous MREs are described, highlighting for each current existing solution the associated advantages and disadvantages. This book is written for scientists and advanced developers who want to understand how choices at the programming API level can affect performance and/or programmability of heterogeneous hardware accelerators, how toimprove the underlying runtime systems in order to seamlessly integrate diverse hardware resources, or how to exploit acceleration techniques from their preferred programming languages.

Learn everything you need to know about frameworks that help developers to integrate their solutions with social networks or APIs, from general purpose (Facebook, Twitter, Google, Mastodon) to specialized (LinkedIn, Xing, WhatsApp, YouTube, Instagram, Flickr, TikTok) to vertical (eToro, Fitbit, Strava). This book will teach you how to add social media features to web applications or services developed using Java, Jakarta EE, or generally running on a Java Virtual Machine (JVM). Jam-packed with practical examples of social integration into enterprise applications, you'll learn how to address common requirements such as social login, identity federation, single sign-on via social accounts, OpenID Connect, and mashups. You'll also see how to leverage Java social frameworks like Facebook Business SDK, Twitter4J, Agorava, Keycloak, and Spring Security. Enterprise Social for the Java Platform is an excellent companion to books covering Jakarta EE Security, Spring Security, portals, and related frameworks. Upon completing it, you'll be armed with the expertise you need to integrate your own Java enterprise applications with social media networks. What You Will Learn Harness the reach and power of social media platforms by integrating your enterprise Java applications with themUnderstand social media standards for different platformsAddress common security issues Who This Book Is For Developers, architects, and managers of projects involving the use of APIs or Social Networks.

This introductory textbook on Java programming is different from others by its emphasis on test-driven development. Writing tests before designing the implementation is incredibly important for debugging purposes and understanding the desired outcome. While testing is often an afterthought in other Java textbooks (being placed at the very end or not at all, which is in some ways cruel to withhold such capabilities from the student), this text takes a different, perhaps'functional“ approach to learning Java: it introduces testing and methods from the start, followed by conditionals, recursion, and loops (on purpose in this very order). It then dives deep into data structures and the Java Collections API, including streams and generics. After this, it pivots to object-oriented programming, exceptions and I/O, searching and sorting, algorithm analysis, and eventually advanced Java/programming topics. This ordering of topics is well adjusted to prepare students to subsequent upper-level courses in data structure or algorithm design and implementation. The approach is illuminated by numerous code snippets and the students'understanding is consolidated by about 250 exercises covering all topics covered in the book. With this book, readers will not only learn how to program Java, but also acquire a necessary precondition for successfully writing and testing commercial software.

Entwickeln Sie modulare Anwendungen mit dem Java Platform Module System, dem am meisten erwarteten Feature von Java 9. Sie werden die Wartbarkeit und Leistung Ihrer Java-Anwendungen verbessern, indem Sie nur die Module einsetzen, die benötigt werden, und deren Implementierungsdetails kapseln. Bis jetzt war Java monolithisch. Die Verwendung eines beliebigen Teils von Java bedeutete die Einbindung der gesamten Laufzeitumgebung, ein Ansatz, der für die wachsende Zahl von IoT-Geräten wie Fitnessmonitoren, Küchengeräten, Spielzeugen und Spielen usw. nicht geeignet ist. Dieses Buch zeigt einen neuen Weg auf, wie Java vom kleinsten Fußabdruck im kleinsten Gerät über Desktop-PCs bis hin zu Serverplattformen skaliert werden kann. Mit Java 9 Modularity Revealed lernen Sie, Ihre Projekte zuverlässiger und skalierbarer als je zuvor zu machen, indem Sie die wichtigste Funktion von Java 9 nutzen - das Java Platform Module System, besser bekannt als Project Jigs. aw. Sie werden lernen, wie Sie einen der Hauptprobleme der Java-Programmierung vermeiden können, nämlich widersprüchliche Klassennamen aus verschiedenen Modulen oder Paketen. Sie werden lernen, benutzerdefinierte Laufzeit-Images zu erstellen, die eine minimale und kompaktere JRE darstellen und nur die Module enthalten, die Sie benötigen. Außerdem lernen Sie, wie Sie bestehende Java-Anwendungen mit Hilfe verschiedener Ansätze und Werkzeuge in modulare Anwendungen umwandeln können. Das Endergebnis ist eine neue Fähigkeit, verschiedene Module zusammenzustecken, ohne Angst vor Namensraum- und anderen Konflikten zu haben, und Sie können alles einsetzen, von kleinen Geräten bis hin zu großen Servern. Dieses Buch enthält Codebeispiele und Erläuterungen. Was Sie lernen werden Java-Anwendungen mit dem neuen, in Java 9 eingeführten modularen System erstellen ErstellenSie Ihre eigene JRE, die nur aus den von Ihnen benötigten Modulen besteht Anpassung Ihrer Testtechniken an modulare Anwendungen Ihre Abhängigkeiten von anderen Modulen aufzulösen Aktivieren Sie Module, die nur bestimmte Pakete exportieren Bestehende Java-Anwendungen in modulare Anwendungen umwandeln Verbesserung der Wartbarkeit und Leistung von Java-Anwendungen Für wen dieses Buch bestimmt ist Erfahrene Java-Programmierer, die über die neue Modularitätsunterstützung in Java 9 auf dem Laufenden bleiben und sich informieren möchten

Learn the principles of good software design and then turn those principles into great code. This book introduces you to software engineering — from the application of engineering principles to the development of software. You'll see how to run a software development project, examine the different phases of a project, and learn how to design and implement programs that solve specific problems. This book is also about code construction — how to write great programs and make them work. This new third edition is revamped to reflect significant changes in the software development landscape with updated design and coding examples and figures. Extreme programming takes a backseat, making way for expanded coverage of the most crucial agile methodologies today: Scrum, Lean Software Development, Kanban, and Dark Scrum. Agile principles are revised to explore further functionalities of requirement gathering. The authors venture beyond imperative and object-oriented languages, exploring the realm of scripting languages in an expanded chapter on Code Construction. The Project Management Essentials chapter has been revamped and expanded to incorporate'SoftAware Development” to discuss the crucial interpersonal nature of joint software creation. Whether you're new to programming or have written hundreds of applications, in this book you'll re-examine what you already do, and you'll investigate ways to improve. Using the Java language, you'll look deeply into coding standards, debugging, unit testing, modularity, and other characteristics of good programs. You Will Learn Modern agile methodologies How to work on and with development teams How to leverage the capabilities of modern computer systems with parallel programming How to work with design patterns to exploit application development best practices How to use modern tools for development, collaboration, and source code controls Who This Book Is For Early career software developers, or upper-level students in software engineering courses

Solve all your Spring Boot 3 micro-framework problems using complete, real-world Java-based code snippets and examples inspired by various problems and corresponding solutions to those problems. When you start a new project, you'll be able to copy the code and configuration files from this book, and then modify them for your own specific software programming needs. This can save you a great deal of work over creating a project from scratch.Spring Boot 3 Recipes has been revised to include new features like the new Spring Native, newly repackaged Spring Data, Spring Kafka for messaging and more on Kubernetes/deployment than in the previous edition. It includes Java 17 long term support code and Jakarta EE 9+ code as a base for Spring Boot 3. This handy code reference takes advantage of these things as it introduces you to VMWare's Spring Boot 3 and Spring Native. Quickly, it dives into code snippets on how to apply and integrate SpringBoot 3 with the Spring MVC web framework, web sockets and WebFlux for the rapid development of web applications, web services, microservices and more. You'll also get solutions to common problems with data persistence, integrating Spring Boot with batch processing, algorithmic programming via Spring Batch, and much more. These enable you to enhance or round out your web applications or microservices with a data and/or transaction-tier to boot. Other recipes cover topics such as using and integrating Boot with Spring's enterprise services, Spring Integration, testing, monitoring and more.At the end of the book, you'll have the code snippets and packages to deploy your Spring Boot-created microservices or applications on a cloud platform like Amazon using the popular Kubernetes container. Finally, this code reference is a must have for your Spring library. What You'll LearnGet reusable code recipes and snippets for the Spring Boot 3 micro-framework Discover how Spring Boot 3 integrates with other Spring APIs, tools, and frameworksAccess Spring MVC, web sockets and WebFlux for easier web developmentWork with microservices for web services development and integration with your Spring Boot applicationsAdd persistence and a data tier seamlessly to make your Spring Boot web application do moreIntegrate enterprise services via Spring Integration and Jakarta EE to create a more complex Java application using Spring BootWho This Book Is ForThis book is for experienced Java and Spring software programmers, developers.

Embrace the future of software development! ChatGPT for Java is the perfect starting point for Java developers to learn how to build intelligent applications using ChatGPT and Open AI APIs.This book takes you from the ground up to demonstrate how to use ChatGPT programmatically. You will learn the basics of ChatGPT and OpenAI APIs, including how to authenticate, send prompts, generate responses, test in the Playground, and handle errors. Each chapter includes practical exercises which demonstrate different API functionalities and bring your concepts to life. You will learn how to AI-enable your own applications using models such as GPT-4, GPT-3.5, Whisper, DALL-E, and many more. As a result, developers will understand that generative AI tools will not replace software development jobs! Instead, you will leverage ChatGPT as your Java AI-pair programmer to increase speed and productivity. You will also learn how ChatGPT can provide powerful Natural Language Processing (NLP) capabilities to your Java apps in order to understand various formats of unstructured text. Step-by-step, you will apply the concepts covered to create your own intelligent chatbots that can automatically process messages from either Slack on Discord. With this book, Java developers will be empowered to take their applications to new heights by leveraging the power of AI as this exciting field continues to evolve and transform.What You Will LearnAuthenticate with the ChatGPT and OpenAI APIs and learn how to engineer and send promptsTest your prompts in the ChatGPT PlaygroundHow to use multiple artificial intelligence models Harness the power the temperature, top_p, and other parameters that can ONLY be accessed by developers to create more unique and engaging responses from ChatGPTCreate intelligent bots for Slack or Discord serversIncorporate context into prompts for betterresponses and apply advanced features of the APIs.Explore future directions for ChatGPT and OpenAI Who This Book Is ForBeginning and intermediate Java developers who have a basic understanding of Java programming concepts and are interested in learning how to add intelligence to their applications by using ChatGPT programmatically. No prior experience with ChatGPT or OpenAI APIs is required.

This book is designed for those new to Java and interested in understanding how ChatGPT/GPT-4 can enhance programming. It offers a unique approach to learning Java, combining traditional hand-written code with cutting-edge ChatGPT-generated examples. The book covers the basics of Java programming and development environments, including understanding recursion, strings, arrays, fundamental data structures, algorithm analysis, queues and stacks, and follows with the role of ChatGPT in generating, explaining, and debugging code. Companion files with source code and figures available for downloading. It's an essential resource for those starting Java programming and for anyone curious about the applications of ChatGPT in coding. FEATURESCombines hand-crafted Java code with ChatGPT-generated examples for a multifaceted learning experienceOffers practical Java coding skills, with examples in recursion, data structures, and algorithm analysisCovers the capabilities of ChatGPT for code generation, debugging, and explanation, providing a modern perspective on programmingIncludes companion files for downloading with source code and figures

Die „Insel“ ist die erste Wahl, wenn es um aktuelles und praktisches Java-Wissen geht. Java-Einsteiger, Studierende und Umsteigerinnen profitieren von diesem Lehrwerk. Neben der Behandlung der Sprachgrundlagen von Java gibt es kompakte Einführungen in Spezialthemen. So erfahren Sie einiges über Threads, Algorithmen, GUIs, Dateien und Datenströme. Dieses Buch ist das Standardwerk für die Java-Programmierung. Es liegt aktuell in der 17. Auflage vor.Aus dem Inhalt:Imperative SprachkonzepteKlassen und ObjekteAusnahmebehandlungGenericsLambda-Ausdrücke und funktionale ProgrammierungDie KlassenbibliothekNebenläufige ProgrammierungEinführung in Datenstrukturen, GUI-Entwicklung, Dateien usw.

Fully updated for Android Studio Giraffe and the new UI, this book aims to teach you how to develop Android-based applications using the Java programming language. This book begins with the basics and outlines how to set up an Android development and testing environment, followed by an overview of areas such as tool windows, the code editor, and the Layout Editor tool. An introduction to the architecture of Android is followed by an in-depth look at the design of Android applications and user interfaces using the Android Studio environment. Chapters also cover the Android Architecture Components, including view models, lifecycle management, Room database access, the Database Inspector, app navigation, live data, and data binding. More advanced topics such as intents are also covered, as are touch screen handling, gesture recognition, and the recording and playback of audio. This book edition also covers printing, transitions, and foldable device support. The concepts of material design are also covered in detail, including the use of floating action buttons, Snackbars, tabbed interfaces, card views, navigation drawers, and collapsing toolbars. Other key features of Android Studio and Android are also covered in detail, including the Layout Editor, the ConstraintLayout and ConstraintSet classes, MotionLayout Editor, view binding, constraint chains, barriers, and direct reply notifications. Chapters also cover advanced features of Android Studio, such as App Links, Gradle build configuration, in-app billing, and submitting apps to the Google Play Developer Console. Assuming you already have some Java programming experience, are ready to download Android Studio and the Android SDK, have access to a Windows, Mac, or Linux system, and have ideas for some apps to develop, you are ready to get started.

Java developers usually tackle the complexity of software development through object-oriented programming (OOP). But not every problem is a good match for OOP. The functional programming (FP) paradigm offers you another approach to solving problems, and Java provides easy-to-grasp FP tools such as lambda expressions and Streams. If you're interested in applying FP concepts to your Java code, this book is for you.Author Ben Weidig highlights different aspects of functional programming and shows you how to incorporate them into your code without going'fully functional.'You'll learn how, when, and why to use FP concepts such as immutability and pure functions to write more concise, reasonable, and future-proof code. Many developers seek to expand their horizons by using OOP and FP together. It's no longer either-or; it's both.In this book, you will:Get a high-level overview of functional programming, including the types already available to Java developersExplore different FP concepts and learn how to use themLearn how to augment your code and use Java's new functional features in your daily work without going fully functionalDevelop a functional mindset and improve your programming skills regardless of language or paradigm

This textbook presents a focused and accessible primer on the fundamentals of Java programming, with extensive use of illustrative examples and hands-on exercises.Addressing the need to acquire a good working model of objects in order to avoid possible misconceptions, the text introduces the core concepts of object-oriented programming at any stage, supported by the use of contour diagrams. Each chapter has one or more complete programs to illustrate the various ideas presented, and to help readers learn how to write programs on their own. Chapter summaries and practical exercises also are included to help the reader to review their progress and practice their skills.This substantially updated second edition has been expanded with additional exercises, and includes new material on bit manipulation and parallel processing. Topics and features: Introduces computing concepts in Chapter 0 for new programmersAdds new chapters on bit-manipulation and parallel processingContains exercises at the end of each chapter with selected answersSupports both text-based and GUI-based Input/OutputObjects can be introduced first, last, or intermixed with other materialUses contour diagrams to illustrate objects and recursionDiscusses OOP concepts such as overloading, class methods, and inheritanceIntroduces string variables and illustrates arrays and array processingDiscusses files, elementary exception processing, and the basics of Javadoc This concise and easy-to-follow textbook/guide is ideal for students in an introductory programming course. It is also suitable as a self-study guide for both practitioners and academics.

Java lernen - gehirnfreundlich und mit Spaß! Der Bestseller in Neuauflage, rundum überarbeitet und aktualisiert Eine komplette Einführung in die objektorientierte Programmierung Vermittelt moderne Ansätze für ein schlankeres, schnelleres und einfacher zu wartendes Java von heute Mit einzigartiger Von-Kopf-bis-Fuß-Didaktik: Ein besonderes Lernerlebnis durch die spielerische, visuell anregende Vermittlung von Wissen Java von Kopf bis Fuß - jetzt vollständig überarbeitet und aktualisiert - ist eine umfassende Erlebnistour durch die objektorientierte Programmierung und Java. Ganz nach modernen Lernprinzipien entworfen, führt Sie dieses Buch von den Grundlagen der Sprache zu fortgeschrittenen Themen wie Lambdas, Streams, Threads, Generics, Threading oder Networking. Und das Beste ist: Sie werden dabei lernen, wirklich wie erfahrene Entwickler:innen zu denken. Auf Ihrem Weg dorthin werden Sie nicht nur lesen. Sie knacken Rätsel, spielen, lösen Krimis und kommen mit Java auf eine Weise zusammen, die Sie sich nicht hätten träumen lassen. Aber natürlich werden Sie auch Unmengen echten Java-Code schreiben. Mithilfe zahlreicher Übungen, Puzzle, Interviews und Abbildungen lädt dieses Buch Ihnen das Wissen direkt ins Hirn. Wenn Sie sich gerne langweilen, besorgen Sie sich lieber ein anderes Buch. Aber wenn Sie wirklich Java lernen wollen, ist alles andere kalter Kaffee.