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The open source Scala language is a Java-based dynamic scripting, functional programming language. Moreover, this highly scalable scripting language lends itself well to building cloud-based/deliverable Software as a Service (SaaS) online applications. Written by Lift Scala web framework founder and lead Dave Pollak, Beginning Scala takes a down-to-earth approach to teaching Scala that leads you through simple examples that can be combined to build complex, scalable systems and applications. This book introduces you to the Scala programming language and then guides you through Scala constructs and libraries that allow small and large teams to assemble small components into high-performance, scalable systems. You will learn why Scala is becoming the language of choice for Web 2.0 companies such as Twitter as well as enterprises such as Seimens and SAP.

Computer programming. --- Computer science -- IT. --- Java (Computer program language). --- Computer Science --- Engineering & Applied Sciences --- Information Technology --- Computer Science (Hardware & Networks) --- General and Others --- Java (Computer program language) --- Computers --- Electronic computer programming --- Electronic data processing --- Electronic digital computers --- Programming (Electronic computers) --- Programming --- Computer science. --- Computer Science. --- Computer Science, general. --- Informatics --- Science --- Object-oriented programming languages --- JavaSpaces technology --- Coding theory --- Software engineering. --- Java. --- Software Engineering/Programming and Operating Systems. --- Computer software engineering --- Engineering

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Beginning Scala, Second Edition takes a down-to-earth approach to teaching Scala that leads you through simple examples that can be combined to build complex, scalable systems and applications. This book introduces you to the Scala programming language, its object-oriented and functional programming characteristics, and then guides you through Scala constructs and libraries that allow you to assemble small components into high-performance, scalable systems. You will learn why Scala is judiciously used for critical business applications by leading companies such as Twitter, LinkedIn, Foursquare, the Guardian, Morgan Stanley, Credit Suisse, UBS, and HSBC. Scala is a multi-paradigm programming language that combines both functional and object-oriented features. Moreover, this highly scalable language lends itself well to building cloud-based/deliverable Software as a Service (SaaS) online applications.

Computer Science. --- Computer Science, general. --- Computer science. --- Informatique --- Engineering & Applied Sciences --- Computer Science --- Scala (Computer program language) --- Computer programming. --- Computers --- Electronic computer programming --- Electronic data processing --- Electronic digital computers --- Programming (Electronic computers) --- Programming --- Informatics --- Science --- Coding theory --- Functional programming languages --- Object-oriented programming languages --- Multiparadigm programming (Computer science) --- Java (Computer program language). --- Software engineering. --- Java. --- Software Engineering/Programming and Operating Systems. --- Computer software engineering --- Engineering --- JavaSpaces technology

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A curious attribute of the Scala programming language is that it expends a lot of expressive power in order to make the life of casual programmers simpler. For instance, Scala provides sophisticated type parametrization and traits so that more advanced programmers can design libraries which are at the same time general and easy to use. Casual users can profit from these libraries long before they discover the full power of Scala's abstraction constructs. The language design avoids the temptation of simply defining some handy primitives in the syntax, even if these primitives would be useful many times to many users. Instead of fixed primitives, the language design tries very hard to provide general construction principles, with which users can then define their own fundamental constructs, at no loss in syntactic convenience. This idea ranges from simple things, such as being able to define your own numeric data types, to full-blown domain-specific APIs such as Scala's support for concurrent actors. There is hardly a better example of this approach than David Pollak's Lift Web Framework for Scala. It leverages the full expressive power of Scala to provide a framework that's at the same time simple to use, powerful, and secure. David has been one of the earliest adopters of Scala. He has become a crystallization point for many important developments in the Scala community. He fostered the vibrant Lift community, organized the first Scala Lift Off conference in 2008, and promoted the adoption of Scala in many important industrial applications.

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Learn the latest version of Scala through simple, practical examples. This book introduces you to the Scala programming language, its object-oriented and functional programming characteristics, and then guides you through Scala constructs and libraries that allow you to assemble small components into high-performance, scalable systems. Beginning Scala 3 explores new Scala 3 language features such as Top-level declarations, Creator applications, Extension methods to add extra functionality to existing types, and Enums. You will also learn new ways to manipulate types via Union types, intersection, literal, and opaque type aliases. Additionally, you'll see how Implicits are replaced by given and using clauses. After reading this book, you will understand why Scala is judiciously used for critical business applications by leading companies such as Twitter, LinkedIn, Foursquare, the Guardian, Morgan Stanley, Credit Suisse, UBS, and HSBC - and you will be able to use it in your own projects. You will: Get started with Scala 3 or Scala language programming in general Understand how to utilitze OOP in Scala Perform functional programming in Scala Master the use of Scala collections, traits and implicits Leverage Java and Scala interopability Employ Scala for DSL programming Use patterns and best practices in Scala.

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