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"Understanding object-oriented programming is vital for a modern computer programmer, and the Java programming language has been one of the most powerful tools available to computer programmers since its inception in 1995. It has also consistently changed since then, making it a vast and powerful resource for object-oriented programming today, finding many applications like mobile programming, Internet programming and software development. This lucid textbook introduces the student not only to the nuances of object-oriented programming, but also to the many syntaxes and semantics of the modern Java language. Each concept of programming is explained, and then illustrated with small but effective ready-to-run programs. Important points to be noted have been emphasized and hints have been given at the end of each discussion so that programmers are careful to avoid common pitfalls. Finally, a number of practice problems taken from real world scenarios encourage the student to think in terms of problem solving, consolidating the knowledge gained"--

Object-oriented programming (Computer science)

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As a programming language, Java's object-oriented nature is key to creating powerful, reusable code and applications that are easy to maintain and extend. That being said, many people learn Java syntax without truly understanding its object-oriented roots, setting them up to fail to harness all of the power of Java. This book is your key to learning both! This new third edition of Beginning Java Objects: From Concepts to Code discusses Java syntax, object principles, and how to properly structure the requirements of an application around an object architecture. It is unique in that it uses a single case study of a Student Registration System throughout the book, carrying the reader from object concepts, to object modeling, to building actual code for a full-blown application. A new chapter covers a technology-neutral discussion of the principles of building a three-tier architecture using Java, introducing the notion of model layer – presentation layer – data layer separation. Coding examples used throughout the book are Java version-neutral. The core object-oriented principles that you will learn from this book are timeless, and are relevant to all versions of the Java language, as well as to many other object-oriented languages. The book can be used for individual self-study or as a university-level textbook. What You Will Learn Know basic object-oriented principles, from the simplest notion of classes and objects through the power of encapsulation, abstract classes, and polymorphism Approach the requirements for an application to structure it properly around objects Render the resultant object model into Java code, building a complete functioning model layer for the Student Registration System case study Conceptually round out an object layer by adding presentation and data layers .

Java (Computer program language) --- Object-oriented programming (Computer science)

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Applications built on the Salesforce platform are now a key part of many organizations' IT systems, with more complex and integrated solutions being delivered every day. As a Salesforce developer working with Apex, it is important to understand the range and variety of tools at your disposal, how and when to use them, and what the best practices are. This revised second edition includes a complete restructuring and five new chapters filled with detailed content on the latest Salesforce innovations including integrating with DataWeave in Apex, and utilizing Flow and Apex together to build scalable applications with Administrators. This Salesforce book starts with a discussion around common mistakes, debugging, exception handling, and testing. The second section focuses on the different asynchronous Apex programming options to help you build more scalable applications, before the third section focuses on integrations, including working with platform events and developing custom Apex REST web services. Finally, the book finishes with a section dedicated to profiling and improving the performance of your Apex including architecture. With code examples used to facilitate discussion throughout, by the end of the book you will be able to develop robust and scalable applications in Apex with confidence.

Computer programming. --- Apex (Computer programming language) --- Object-oriented programming languages.

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Begin your journey toward efficient data manipulation with this robust technical guide and enhance your aggregation skills while building efficient pipelines for a variety of tasks Key Features Build effective aggregation pipelines for increased productivity and performance Solve common data manipulation and analysis problems with the help of practical examples Learn essential strategies to aggregate time series data in financial datasets and IoT Purchase of the print or Kindle book includes a free PDF eBook Book Description Officially endorsed by MongoDB, Inc., Practical MongoDB Aggregations helps you unlock the full potential of the MongoDB aggregation framework, including the latest features of MongoDB 7.0. This book provides practical, easy-to-digest principles and approaches for increasing your effectiveness in developing aggregation pipelines, supported by examples for building pipelines to solve complex data manipulation and analytical tasks. This book is customized for developers, architects, data analysts, data engineers, and data scientists with some familiarity with the aggregation framework. It begins by explaining the framework's architecture and then shows you how to build pipelines optimized for productivity and scale. Given the critical role arrays play in MongoDB's document model, the book delves into best practices for optimally manipulating arrays. The latter part of the book equips you with examples to solve common data processing challenges so you can apply the lessons you've learned to practical situations. By the end of this MongoDB book, you'll have learned how to utilize the MongoDB aggregation framework to streamline your data analysis and manipulation processes effectively. What you will learn Develop dynamic aggregation pipelines tailored to changing business requirements Master essential techniques to optimize aggregation pipelines for rapid data processing Achieve optimal efficiency for applying aggregations to vast datasets with effective sharding strategies Eliminate the performance penalties of processing data externally by filtering, grouping, and calculating aggregated values directly within the database Use pipelines to help you secure your data access and distribution Who this book is for This book is for intermediate-level developers, architects, analysts, engineers, and data scientists who are interested in learning about aggregation capabilities in MongoDB. Working knowledge of MongoDB is needed to get the most out of this book.

Database management --- Open source software. --- Object-oriented databases. --- Non-relational databases. --- MongoDB.

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"An investigation of how power mobilizes algorithmic and ontological objects, for example smartwatches and smart buildings, to uncover hidden problems within the physical domains of the IoT"--

Internet of things --- Object-oriented methods (Computer science) --- Ontology. --- Social aspects.