This is brief presentation on the Scala programming language. It is aimed at Java developers who are curious about Scala. It was given at a San Francisco Java User Group in January 2009.
Intro to Functional Programming in ScalaShai Yallin
Scala is a functional and object-oriented programming language that runs on the Java Virtual Machine. It features type inference, immutable collections, pattern matching, and functions as first-class values. The document provides an overview of Scala's features such as its static typing, traits for multiple inheritance, and case classes for value objects. It also demonstrates Scala's collections API and use of functions and pattern matching.
Slides from my talk at the Feb 2011 Seattle Tech Startups meeting. More info here (along with powerpoint slides): http://www.startupmonkeys.com/2011/02/scala-frugal-mechanic/
The document compares and contrasts features of the Scala and Ruby programming languages, including type systems, pattern matching, monkey patching, dynamic calls, traits/modules, and more. It discusses how each language handles the given features, often providing code examples, and notes similarities and differences between the two approaches. The overall assessment is that a draw is the best way to characterize the comparison between Scala and Ruby, as both languages have their merits for different use cases and preferences.
This document provides an introduction to Scala. It discusses:
- Who the author is and their background with Scala and Spark
- Why Scala is a scalable language that runs on the JVM and supports object oriented and functional programming
- How to install Scala and use the Scala interpreter
- Basic Scala syntax like defining values and variables, type inference, strings, tuples, objects, importing classes
- Common functions and operations like map, reduce, anonymous functions, pattern matching
- Code samples for RDD relations and SparkPi
- Tips for using Scala in practice including SBT and good IDEs like IntelliJ
"The joy of Scala" - Maxim Novak / Wix
Around eight years ago I started my journey as a developer. Since then, I've played around with many languages and thought that C# offers the best developer productivity. After joining Wix two years ago, I was exposed to the amazing world of Scala and Functional Programming and never looked back.
In Scala the code is much more concise, less ceremonious, immutable by default, combines functional with object oriented, seamlessly interoperates with Java, and many software engineering patterns are already baked into the language. Most importantly - Scala is FUN! By the end of the session you too will, hopefully, convert to Scala and never look back.
Recording of the lecture (Hebrew) - https://youtu.be/TcnYTwff2xU
This document provides an overview of Scala fundamentals including:
- Scala is a programming language for the JVM that supports both object-oriented and functional paradigms.
- It defines variables, values, lazy values, functions, types, classes, objects, traits, and higher-order functions.
- Classes can extend other classes and traits, allowing for multiple inheritance. Objects are used as singletons.
- Functional concepts like immutability, anonymous functions, and higher-order functions are supported.
Scala is becoming the language of choice for many development teams. This talk highlights how Scala excels in the world of multi-core processing and explores how it compares to Java 8.
Video Presentation: http://youtu.be/8vxTowBXJSg
Scala is a modern programming language created by Martin Odersky that provides static typing and supports both object-oriented and functional programming paradigms. It compiles to Java bytecode and runs on the Java Virtual Machine (JVM), allowing it to interoperate with Java. Many consider Scala to be a better alternative to Java due to its concise and expressive syntax. Scala sees widespread use in production systems and has growing job opportunities for developers with Scala skills.
Scala is a programming language that mixes object oriented and functional programming in a powerful and flexible way. While it can not be considered as a mainstream language, it has seen a growing adoption trend.An important ingredient for this diffusion is its complete interoperability with Java and the fact that it runs on a solid platform such as the JVM.
It is currently the 4th most loved programming language and the 2nd top paying technology of 2016 (StackOverflow Developers Survey).
These slides have been used for a 4h seminar at the University of Cagliari the 17th of December 2016
Watch video (in Hebrew): http://parleys.com/play/53f7a9cce4b06208c7b7ca1e
Type classes are a fundamental feature of Scala, which allows you to layer new functionality on top of existing types externally, i.e. without modifying or recompiling existing code. When combined with implicits, this is a truly remarkable tool that enables many of the advanced features offered by the Scala library ecosystem. In this talk we'll go back to basics: how type classes are defined and encoded, and cover several prominent use cases.
A talk given at the Underscore meetup on 19 August, 2014.
This document provides an introduction to JavaScript web development. It covers key concepts like AJAX architecture, unobtrusive JavaScript, CSS, and how they interact. JavaScript allows dynamic interaction and filtering of HTML content. The document demonstrates JavaScript features like variables, arrays, objects, JSON, loops, functions, and more. It also discusses advantages of CSS for layout and separation of concerns from HTML.
This document provides an overview of the Scala programming language. Some key points:
- Scala runs on the Java Virtual Machine and was created by Martin Odersky at EPFL.
- It has been around since 2003 and the current stable release is 2.7.7. Release 2.8 beta 1 is due out soon.
- Scala combines object-oriented and functional programming. It has features like pattern matching, actors, XML literals, and more that differ from Java. Everything in Scala is an object.
This document summarizes a talk given about Nokia's migration to Scala for its Places API. The key points are:
1) Nokia migrated its Places API codebase to Scala to take advantage of Scala's features like its powerful type system, immutable data structures, and functional programming capabilities.
2) The migration was done gradually over time while continuing to develop new features. They discovered many benefits of Scala along the way like improved test readability and JSON parsing capabilities.
3) Nokia uses Scala features like case classes, options, and functions to model data and add type safety to its codebase. This uncovered bugs that would have been hard to find in Java.
The document provides an overview of the Scala programming language. It begins with an agenda that outlines topics like differences between Java and Scala, Scala data types, variables, classes, functions, closures, exception handling and collections. It then discusses specific aspects of Scala like verbosity reduction compared to Java, functional programming influences, object-oriented features, interoperability with Java and compilation to Java bytecode. Examples are provided to illustrate Scala concepts like functions, classes, recursion, higher-order functions and exception handling. The document aims to explain Scala and reasons for differences from Java.
This document provides an agenda and overview for a Spark workshop covering Spark basics and streaming. The agenda includes sections on Scala, Spark, Spark SQL, and Spark Streaming. It discusses Scala concepts like vals, vars, defs, classes, objects, and pattern matching. It also covers Spark RDDs, transformations, actions, sources, and the spark-shell. Finally, it briefly introduces Spark concepts like broadcast variables, accumulators, and spark-submit.
This document provides an introduction to the Scala programming language. It discusses what Scala is, how to get started, basic concepts like mutability and functions, and Scala features like classes, traits, pattern matching, and collections. Scala combines object-oriented and functional programming. It runs on the Java Virtual Machine and is compatible with Java. The document provides code examples to demonstrate Scala concepts and features.
This document summarizes some of the key differences between Scala and Java syntax. It covers topics like type definitions, variables, methods, classes, traits, collections, exceptions, control flow, and packages. Overall, the document shows that Scala code is more concise and expressive than equivalent Java code for many common programming constructs.
This document provides an introduction to functional programming concepts and the Scala programming language. It begins with a brief history of object-oriented programming and why it became popular. It then discusses why functional programming has gained popularity in recent years due to its ability to handle parallel, reactive and distributed systems through immutable data and avoidance of mutable state. The document introduces functional programming concepts like immutable data, first-class functions and purity. It provides an example of functional-style programming in Scala. Finally, it outlines topics that will be covered about practical functional programming in Scala, including collections, functions, pattern matching and lazy evaluation.
Scala collections api expressivity and brevity upgrade from javaIndicThreads
Session presented at the 6th IndicThreads.com Conference on Java held in Pune, India on 2-3 Dec. 2011.
http://Java.IndicThreads.com
The document summarizes key topics from a session on functional programming in Scala, including:
- Von Neumann architecture and bottlenecks that FP aims to address
- History of FP languages and the lambda calculus foundation
- Introduction of Scala as a language that is object-oriented, functionally, statically typed and runs on the JVM
- Examples of Scala syntax like comments, variables, classes, functions, pattern matching and more
- Discussion of functional concepts in Scala like purity, recursion, and use of traits
Slides for my recent presentation at the CASE meetup, May 21st. Discusses functional programming features in Scala. Goes from basic FP features like higher-order functions all the way through to monads.
In functional programming, words from Category Theory are thrown around, but how useful are they really?
This session looks at applications of monoids specifically and how using their algebraic properties offers a solid foundation of reasoning in many types of business domains and reduces developer error as computational context complexity increases.
This will provide a tiny peak at Category Theory's practical uses in software development and modeling. Code examples will be in Haskell and Scala, but monoids could be constructed in almost any language by software craftsmen and women utilizing higher orders of reasoning to their code.
Le slide deck de l'Université que nous avons donnée avec Rémi Forax à Devoxx France 2019.
Comme promis, Java sort sa version majeure tous les 6 mois. Le train passe et amène son lot de nouveautés. Parmi elles, certaines sont sorties : une nouvelle syntaxe pour les clauses switch et l'instruction de byte code CONSTANT_DYNAMIC. D'autres sont en chantier, plus ou moins avancé : une nouvelle façon d'écrire des méthodes de façon condensée, un instanceof 'intelligent', des constantes évaluées au moment où elles sont utilisées. Les projets progressent. Loom, et son nouveau modèle de programmation concurrente que l'ont peut tester avec Jetty. Amber, qui introduit les data types et des nouvelles syntaxes. Valhalla, dont les value types donnent leurs premiers résultats. S'il est difficile de prévoir une date de sortie pour ces nouveautés, on sait en revanche qu'une fois prêtes elles sortiront en moins de 6 mois. De tout ceci nous parlerons donc au futur et en public, avec des démonstrations de code, des slides, du code, de la joie et de la bonne humeur !
The document discusses Scala reflection, which provides a unified API to access information about a program at both compile-time and runtime. This API allows programs to inspect their structure, types, and symbols using trees, mirrors, and universes. It facilitates tasks like runtime compilation, reifying types, and writing macros. The current implementation is available in Scala 2.10 M3, with runtime reflection improved for the upcoming M4 release.
Scala is a multi-paradigm programming language that runs on the Java Virtual Machine. It is intended to be both object-oriented and functional. Scala is compatible with Java and allows Java code to interoperate with Scala code. Some key features of Scala include type inference, lazy evaluation, treating methods as variables, and support for both object-oriented and functional programming paradigms.
Scala is a modern programming language created by Martin Odersky that provides static typing and supports both object-oriented and functional programming paradigms. It compiles to Java bytecode and runs on the Java Virtual Machine (JVM), allowing it to interoperate with Java. Many consider Scala to be a better alternative to Java due to its concise and expressive syntax. Scala sees widespread use in production systems and has growing job opportunities for developers with Scala skills.
Scala is a programming language that mixes object oriented and functional programming in a powerful and flexible way. While it can not be considered as a mainstream language, it has seen a growing adoption trend.An important ingredient for this diffusion is its complete interoperability with Java and the fact that it runs on a solid platform such as the JVM.
It is currently the 4th most loved programming language and the 2nd top paying technology of 2016 (StackOverflow Developers Survey).
These slides have been used for a 4h seminar at the University of Cagliari the 17th of December 2016
Watch video (in Hebrew): http://parleys.com/play/53f7a9cce4b06208c7b7ca1e
Type classes are a fundamental feature of Scala, which allows you to layer new functionality on top of existing types externally, i.e. without modifying or recompiling existing code. When combined with implicits, this is a truly remarkable tool that enables many of the advanced features offered by the Scala library ecosystem. In this talk we'll go back to basics: how type classes are defined and encoded, and cover several prominent use cases.
A talk given at the Underscore meetup on 19 August, 2014.
This document provides an introduction to JavaScript web development. It covers key concepts like AJAX architecture, unobtrusive JavaScript, CSS, and how they interact. JavaScript allows dynamic interaction and filtering of HTML content. The document demonstrates JavaScript features like variables, arrays, objects, JSON, loops, functions, and more. It also discusses advantages of CSS for layout and separation of concerns from HTML.
This document provides an overview of the Scala programming language. Some key points:
- Scala runs on the Java Virtual Machine and was created by Martin Odersky at EPFL.
- It has been around since 2003 and the current stable release is 2.7.7. Release 2.8 beta 1 is due out soon.
- Scala combines object-oriented and functional programming. It has features like pattern matching, actors, XML literals, and more that differ from Java. Everything in Scala is an object.
This document summarizes a talk given about Nokia's migration to Scala for its Places API. The key points are:
1) Nokia migrated its Places API codebase to Scala to take advantage of Scala's features like its powerful type system, immutable data structures, and functional programming capabilities.
2) The migration was done gradually over time while continuing to develop new features. They discovered many benefits of Scala along the way like improved test readability and JSON parsing capabilities.
3) Nokia uses Scala features like case classes, options, and functions to model data and add type safety to its codebase. This uncovered bugs that would have been hard to find in Java.
The document provides an overview of the Scala programming language. It begins with an agenda that outlines topics like differences between Java and Scala, Scala data types, variables, classes, functions, closures, exception handling and collections. It then discusses specific aspects of Scala like verbosity reduction compared to Java, functional programming influences, object-oriented features, interoperability with Java and compilation to Java bytecode. Examples are provided to illustrate Scala concepts like functions, classes, recursion, higher-order functions and exception handling. The document aims to explain Scala and reasons for differences from Java.
This document provides an agenda and overview for a Spark workshop covering Spark basics and streaming. The agenda includes sections on Scala, Spark, Spark SQL, and Spark Streaming. It discusses Scala concepts like vals, vars, defs, classes, objects, and pattern matching. It also covers Spark RDDs, transformations, actions, sources, and the spark-shell. Finally, it briefly introduces Spark concepts like broadcast variables, accumulators, and spark-submit.
This document provides an introduction to the Scala programming language. It discusses what Scala is, how to get started, basic concepts like mutability and functions, and Scala features like classes, traits, pattern matching, and collections. Scala combines object-oriented and functional programming. It runs on the Java Virtual Machine and is compatible with Java. The document provides code examples to demonstrate Scala concepts and features.
This document summarizes some of the key differences between Scala and Java syntax. It covers topics like type definitions, variables, methods, classes, traits, collections, exceptions, control flow, and packages. Overall, the document shows that Scala code is more concise and expressive than equivalent Java code for many common programming constructs.
This document provides an introduction to functional programming concepts and the Scala programming language. It begins with a brief history of object-oriented programming and why it became popular. It then discusses why functional programming has gained popularity in recent years due to its ability to handle parallel, reactive and distributed systems through immutable data and avoidance of mutable state. The document introduces functional programming concepts like immutable data, first-class functions and purity. It provides an example of functional-style programming in Scala. Finally, it outlines topics that will be covered about practical functional programming in Scala, including collections, functions, pattern matching and lazy evaluation.
Scala collections api expressivity and brevity upgrade from javaIndicThreads
Session presented at the 6th IndicThreads.com Conference on Java held in Pune, India on 2-3 Dec. 2011.
http://Java.IndicThreads.com
The document summarizes key topics from a session on functional programming in Scala, including:
- Von Neumann architecture and bottlenecks that FP aims to address
- History of FP languages and the lambda calculus foundation
- Introduction of Scala as a language that is object-oriented, functionally, statically typed and runs on the JVM
- Examples of Scala syntax like comments, variables, classes, functions, pattern matching and more
- Discussion of functional concepts in Scala like purity, recursion, and use of traits
Slides for my recent presentation at the CASE meetup, May 21st. Discusses functional programming features in Scala. Goes from basic FP features like higher-order functions all the way through to monads.
In functional programming, words from Category Theory are thrown around, but how useful are they really?
This session looks at applications of monoids specifically and how using their algebraic properties offers a solid foundation of reasoning in many types of business domains and reduces developer error as computational context complexity increases.
This will provide a tiny peak at Category Theory's practical uses in software development and modeling. Code examples will be in Haskell and Scala, but monoids could be constructed in almost any language by software craftsmen and women utilizing higher orders of reasoning to their code.
Le slide deck de l'Université que nous avons donnée avec Rémi Forax à Devoxx France 2019.
Comme promis, Java sort sa version majeure tous les 6 mois. Le train passe et amène son lot de nouveautés. Parmi elles, certaines sont sorties : une nouvelle syntaxe pour les clauses switch et l'instruction de byte code CONSTANT_DYNAMIC. D'autres sont en chantier, plus ou moins avancé : une nouvelle façon d'écrire des méthodes de façon condensée, un instanceof 'intelligent', des constantes évaluées au moment où elles sont utilisées. Les projets progressent. Loom, et son nouveau modèle de programmation concurrente que l'ont peut tester avec Jetty. Amber, qui introduit les data types et des nouvelles syntaxes. Valhalla, dont les value types donnent leurs premiers résultats. S'il est difficile de prévoir une date de sortie pour ces nouveautés, on sait en revanche qu'une fois prêtes elles sortiront en moins de 6 mois. De tout ceci nous parlerons donc au futur et en public, avec des démonstrations de code, des slides, du code, de la joie et de la bonne humeur !
The document discusses Scala reflection, which provides a unified API to access information about a program at both compile-time and runtime. This API allows programs to inspect their structure, types, and symbols using trees, mirrors, and universes. It facilitates tasks like runtime compilation, reifying types, and writing macros. The current implementation is available in Scala 2.10 M3, with runtime reflection improved for the upcoming M4 release.
Scala is a multi-paradigm programming language that runs on the Java Virtual Machine. It is intended to be both object-oriented and functional. Scala is compatible with Java and allows Java code to interoperate with Scala code. Some key features of Scala include type inference, lazy evaluation, treating methods as variables, and support for both object-oriented and functional programming paradigms.
An Introduction to core ideas, characteristics and benefits of functional programming and their implementation within the so called ‘object – functional’ language Scala.
Leaving the widely known concepts of object oriented programming aside, the focus is directed on how to leverage Scala in order to perform the following topics (extract):
* Functions and Function types
* Lambdas and Closures
* Currying and partial Argument Application
* Algebraic datatypes and Pattern matching
* Higher Order Functions
* Composition and Combinators
This document summarizes Mario Gleichmann's presentation on functional Scala to a Java user group in Frankfurt. It discusses functional programming concepts like functions as first-class values, higher-order functions, currying, partial application, and function composition using combinators. It provides examples of extracting prime numbers from a list and managing database resources functionally. The document concludes with an example problem of counting even words in a sentence.
This document provides an overview of pattern matching in Scala. It begins by comparing Scala's match expression to switch statements in other languages. Match expressions allow matching against a broader range of types, including alternate patterns using pipes (|). Variables can be bound in matches using the "x @ pattern" syntax. Matches can also be made on type and include guards for fine-grained selection. Case classes enable easy pattern matching on constructor arguments. Sealed hierarchies allow exhaustive matching. Custom extractors can be defined to perform matching via the "unapply" method. Examples show matching IP addresses and summing components using custom octet extraction.
What's new with Scala 2.10.0? A brief look at the past, and a detailed look at what's coming down the pipeline.
Note: at the time this presentation was created, Scala 2.10.0 had not been released yet. The final version will probably differ in some ways.
Last update: September 20th
This document provides an introduction and overview of pattern matching in Scala. It begins with examples of simple pattern matching on integers and strings to demonstrate the basic syntax. It then discusses more complex patterns for matching types, tuples, lists, case classes, and nested patterns. Additional topics covered include guards, regular expressions, exhaustive matching, stable identifiers, and exception handling. Pattern matching allows decomposing complex data structures to extract constituent parts, serving as the inverse of construction.
This document provides an introduction to the Scala programming language. It begins with a brief history of Scala and overview of its core concepts like vals, classes, objects, traits, and functions. It also covers intermediate concepts like pattern matching, Option, XML and Futures. The document discusses Scala's support for functional and object-oriented programming and how it compiles to Java bytecode. It provides examples of using Scala's collections and control structures and describes features like classes, objects, traits and case classes.
Scala Programming for Semantic Web Developers ESWC Semdev2015Jean-Paul Calbimonte
Scalable and Reactive Programming for Semantic Web Developers discusses using Scala for semantic web development. Key points include:
- Scala allows for more concise RDF code compared to Java through features like type inference and implicit parameters.
- The actor model and futures in Scala enable asynchronous and reactive programming for RDF streams and SPARQL queries.
- OWL API reasoning with ontologies can be done more clearly in Scala through implicit classes that simplify common operations.
Scala for Java Developers (Silicon Valley Code Camp 13)Ramnivas Laddad
My presentation at Silicon Valley Code Camp 13 (http://www.siliconvalley-codecamp.com/Session/2013/scala-for-java-developers). The target audience is Java developers who wants to get started with Scala.
This presentation is based on Joakim\’s experiences from moving from Java to Scala http://www.scala-lang.org/node/960#Joak We will explore how to move from Java to Scala and why. We\’ll look at things that you will run into sooner rather than later such as Scala\’s collection APIs, Options and higher order functions and special syntax. You will leave this presentation with good foundation to use Scala in practice; perhaps even in your current Java project and ideally with an appetite to learn more.
Short (45 min) version of my 'Pragmatic Real-World Scala' talk. Discussing patterns and idioms discovered during 1.5 years of building a production system for finance; portfolio management and simulation.
Develop realtime web with Scala and XitrumNgoc Dao
This document discusses a talk given by Ngoc Dao on developing realtime and distributed web applications with Scala and Xitrum. The talk covers:
1) An overview of Scala, including its functional features, object-oriented features, tools like SBT and REPL, and how to get started.
2) Using Scala for web development with the Xitrum framework, including routing, responding to requests, internationalization, and metrics.
3) Using Scala for concurrency with futures, actors, and Akka FSM.
4) Building realtime web applications with websockets, Socket.IO and SockJS.
5) Distributed systems with Akka remoting
This document discusses asynchronous I/O in Java and Scala using the Play Framework. It describes how LinkedIn uses a service-oriented architecture with hundreds of services making requests to each other. It then covers how Play supports non-blocking I/O using asynchronous code, promises, and futures to allow parallel requests without blocking threads. Key points covered include using map and flatMap to transform promises and futures, handling errors and timeouts, and the benefits of non-blocking I/O for scalability.
This speaker is a serial language enthusiast who has programmed in many languages for both work and personal projects. For their work at Twitter, they were looking to move away from primarily using Ruby due to performance and cultural issues it presented for building large systems. They settled on adopting Scala at Twitter as it met their personal criteria of being fast, functional, expressive, statically typed, concurrent, and beautiful to work with.
The document summarizes Martin Odersky's talk at Scala Days 2016 about the road ahead for Scala. The key points are:
1. Scala is maturing with improvements to tools like IDEs and build tools in 2015, while 2016 sees increased activity with the Scala Center, Scala 2.12 release, and rethinking Scala libraries.
2. The Scala Center was formed to undertake projects benefiting the Scala community with support from various companies.
3. Scala 2.12 focuses on optimizing for Java 8 and includes many new features. Future releases will focus on improving Scala libraries and modularization.
4. The DOT calculus provides a formal
Functional Database Strategies at Scala BayJason Swartz
As developers using a functional programming language, we embrace immutable collections and pure functions in our code. However, we often have separate rules for how we work with our persistent collections in databases. In this talk we'll look at why & how to take a more functional approach to persistence with databases, from managing the connections, using immutable table rows, and considering event-source persistence
City Tracks add a metaphor to exercise, an extra motivation, a rewarding stimulus so that walking and jogging be more than just that.
Run in the Formula 1 circuits, jog in the most appealing cities in the world, walk for a cause. This Rexona app will lead you to DO:MORE.
This document provides an introduction to Scala for Java developers. It discusses that Scala is a hybrid object-oriented and functional language that runs on the JVM and interoperates well with Java. It highlights several features of Scala that allow for more concise code compared to Java, such as type inference, expressions instead of statements, higher-order functions, and case classes.
The Scala programming language has been gaining momentum recently as an alternative (and some might say successor) to Java on the JVM. This talk will start with an introduction to basic Scala syntax and concepts, then delve into some of Scala's more interesting and unique features. At the end we'll show a brief example of how Scala is used by the Lift web framework to simplify dynamic web apps.
BCS SPA 2010 - An Introduction to Scala for Java DevelopersMiles Sabin
This document provides an introduction to Scala for Java developers. It outlines how Scala cleans up Java syntax by making semi-colons optional, using == for equals and eq for reference equality, and allowing periods to be omitted. It also describes how Scala goes beyond Java by supporting features like case classes, pattern matching, named and default arguments, and mixin composition with traits. The document provides examples of using these features and explains how Scala seamlessly interoperates with Java.
An Introduction to Scala for Java DevelopersMiles Sabin
The document provides an introduction to Scala for Java developers. It outlines key features of Scala including cleaning up Java syntax, going beyond Java with features like case classes, traits, and pattern matching, and its functional focus including support for higher-order functions, the Option type, and for comprehensions. The document also briefly discusses the Scala IDE for Eclipse.
A Brief Introduction to Scala for Java DevelopersMiles Sabin
Scala is a programming language that blends object-oriented and functional programming styles. It is designed to interoperate with Java code and runs on the Java Virtual Machine. Some key features of Scala include case classes, pattern matching, traits for mixing functionality, and immutable data structures. Scala code compiles to Java bytecode, allowing seamless use of Java libraries and tools.
Miles Sabin Introduction To Scala For Java DevelopersSkills Matter
Scala is a programming language that blends object-oriented and functional programming styles. It is designed to interoperate with Java code and runs on the Java Virtual Machine. Some key features of Scala include case classes, pattern matching, traits for mixing behavior, and immutable data structures. Scala code compiles to Java bytecode, allowing seamless use of Java libraries and tools.
This document provides an introduction to the Scala programming language. It begins with an overview of Scala's motivation and history. It then covers the basics of Scala including simple data structures, loops, objects, types and generics. More advanced topics such as traits, mixins, implicit conversions and sealed classes are also discussed. The document concludes with references for further reading.
I used these slides for a Scala workshop that I gave. They are based on these: http://www.scala-lang.org/node/4454. Thanks to Alf Kristian Støyle and Fredrik Vraalsen for sharing!
This presentation was presented at OSS camp in New Delhi. It deals with the basics of Scala language and how we can use it to build scalable Applications
This document discusses Scala in the wild, focusing on its use at Novell in building Pulse, a next-gen communications platform. It highlights some of the challenges of using Scala in an enterprise setting, including the need for actor recovery mechanisms and better Java interoperability. It also notes tendencies of Java developers new to Scala to write Java-style code in Scala and fail to leverage advanced Scala features. The document proposes adopting conventions to help Scala developers write more idiomatic and effective Scala code.
The document is a slide presentation on Scala that provides an introduction to the language in 90 minutes or less. It covers Scala basics like being object oriented and functional, static typing, compilation to JVM bytecode, and interoperability with Java. It also discusses Scala tools, its use in open source projects and industry, recommended books, and jobs involving Scala. Code examples are provided to demonstrate Hello World programs, variables, methods, conditionals, sequences, and closures in Scala.
The workshop aims to introduce Scala > 2.10 and was held at Clueda AG .
It gives an introduction to Scala also explaining widely used language features like case classes, patten matching, futures and string interpolation.
This document provides an overview of the Scala programming language. Scala was designed to be scalable by unifying object-oriented and functional programming. It runs on the Java Virtual Machine and interoperates with Java libraries. Scala code is more concise than Java due to features like type inference, immutable data structures, and support for functional programming patterns. Popular frameworks developed using Scala include Apache Spark, Kafka, and Akka. Scala sees widespread use in domains like big data, web development, and scientific computing.
This document provides an introduction to Scala by covering basic topics like packages, imports, classes, traits, control structures, and functions. It demonstrates Scala code for defining classes with fields, methods, and constructors. It shows how to use case classes, traits for composition, and for-comprehensions for iterating over collections. The document aims to highlight Scala's hybrid object-oriented and functional approach through code examples.
Scala is a multi-paradigm programming language that runs on the JVM and combines object-oriented and functional programming. It is statically typed but has type inference for concise syntax. Scala is fully interoperable with Java and was created by Martin Odersky in 2003. Key features include classes, objects, traits, immutability by default, case classes, functional collections, and optional values to avoid null pointers.
Scala is a multi-paradigm programming language that runs on the JVM. It combines object-oriented and functional programming concepts. SBT is the build tool used for Scala projects and allows for incremental compilation. Scala has a uniform approach to collections that emphasizes immutability and uses higher-order
This document discusses several lessons about Android development that are not typically covered in school. It covers architectural changes in Android over time, security best practices, techniques for logging user activity and crash reports, strategies for building hybrid mobile-web applications, considerations for creating mobile SDKs, and approaches for testing Android apps on multiple device configurations.
Design Patterns for Tablets and SmartphonesMichael Galpin
This is a talk I gave at AnDevCon. It talks about ways to take advantage of features introduced in Android 3.0 to create more modular and better looking apps.
This document discusses various techniques for working with multimedia in Android applications, including detecting device capabilities, loading images from local storage and remote URLs, playing audio files from assets and raw resources, and improving performance through caching and asynchronous loading. It provides code examples for checking if a device has a front-facing camera, loading images while avoiding out of memory errors, playing audio files from assets, and using an AsyncTask to load images asynchronously to avoid blocking the UI. It also discusses potential memory leak issues and strategies for building an image cache.
That’s My App - Running in Your Background - Draining Your BatteryMichael Galpin
You have seen the ads where Android based devices like to brag about how awesome their multitasking is and now even the iPhone claims to have multitasking. Unfortunately it’s pseudo-multitasking borrowed from Android, but fear not. Android has “real” multitasking as well. It’s easy to do, but even easier to screw up. In this talk you’ll learn how to do it right, and how to do it without killing a phone’s battery. We’ll discuss the dreaded “P” word (polling), as well as alternatives such as Android’s cloud to device messaging and persistent connections.
Are the smartphone wars wearing your out? When asked to choose between Objective-C and Java do you answer “None of the Above”? Do you think app stores are so 1995? Then there is good news for you and it’s called the mobile web. This isn’t about trying to port iFart to the browser, and it’s definitely not about tweaking an existing website so it doesn’t look awful on your mom’s iPhone. It is about writing full featured, engaging applications on the web. This talk is all about how to create killer web apps using HTML5, CSS3, as well as some other not-so-standard technologies available on a wide variety of popular smartphones. We’re talking about multi-threaded, high performance apps that can track your movement or even take pictures of whatever you think is interesting.
Persistent Data Structures And Managed ReferencesMichael Galpin
This document provides an overview of Clojure's approach to managing state and identity in a functional programming paradigm. It discusses how Clojure uses immutable persistent data structures and managed references like refs, agents, and atoms to allow for mutable state while avoiding problems with concurrency. Clojure separates identity from value and coordinates state changes through reference types that transition states atomically in a consistent way without requiring user locking.
RIAs Done Right: Grails, Flex, and EXT GWTMichael Galpin
The document discusses how Rich Internet Applications (RIAs) can be done effectively by leveraging modern web technologies like Ajax and RESTful web services. It advocates for building RIAs using a client-server architecture with thick clients that rely on RESTful APIs and lightweight markup from servers, as this allows for improved performance, mobility, and a better user experience compared to traditional web applications. It also provides examples of implementing RIAs using technologies like GWT, Flex, and RESTful web services.
This document discusses the history and evolution of Eclipse usage at eBay over multiple versions. It describes how eBay transitioned from Perl and C++ to fully using Java for its architecture. It then discusses how Eclipse was customized through plugins, wizards, and editors to improve developer productivity for tasks like managing dependencies, working with data access layers, and service-oriented architecture. Key individuals who helped advance Eclipse usage at eBay are also recognized.
This document discusses the history and evolution of the architecture at eBay. It describes how the company started with AuctionWeb in 1995 using Perl and then moved to C++ and Java. It discusses the challenges of rapid growth and how the architecture became overly complex with everything coded in Java. It then outlines how they addressed this by generating code, advanced editors, visual explorers and components/wizards to improve developer productivity and manage complexity.
Neural representations have shown the potential to accelerate ray casting in a conventional ray-tracing-based rendering pipeline. We introduce a novel approach called Locally-Subdivided Neural Intersection Function (LSNIF) that replaces bottom-level BVHs used as traditional geometric representations with a neural network. Our method introduces a sparse hash grid encoding scheme incorporating geometry voxelization, a scene-agnostic training data collection, and a tailored loss function. It enables the network to output not only visibility but also hit-point information and material indices. LSNIF can be trained offline for a single object, allowing us to use LSNIF as a replacement for its corresponding BVH. With these designs, the network can handle hit-point queries from any arbitrary viewpoint, supporting all types of rays in the rendering pipeline. We demonstrate that LSNIF can render a variety of scenes, including real-world scenes designed for other path tracers, while achieving a memory footprint reduction of up to 106.2x compared to a compressed BVH.
https://arxiv.org/abs/2504.21627
Domino IQ – What to Expect, First Steps and Use Casespanagenda
Webinar Recording: https://www.panagenda.com/webinars/domino-iq-what-to-expect-first-steps-and-use-cases/
HCL Domino iQ Server – From Ideas Portal to implemented Feature. Discover what it is, what it isn’t, and explore the opportunities and challenges it presents.
Key Takeaways
- What are Large Language Models (LLMs) and how do they relate to Domino iQ
- Essential prerequisites for deploying Domino iQ Server
- Step-by-step instructions on setting up your Domino iQ Server
- Share and discuss thoughts and ideas to maximize the potential of Domino iQ
National Fuels Treatments Initiative: Building a Seamless Map of Hazardous Fu...Safe Software
The National Fuels Treatments Initiative (NFT) is transforming wildfire mitigation by creating a standardized map of nationwide fuels treatment locations across all land ownerships in the United States. While existing state and federal systems capture this data in diverse formats, NFT bridges these gaps, delivering the first truly integrated national view. This dataset will be used to measure the implementation of the National Cohesive Wildland Strategy and demonstrate the positive impact of collective investments in hazardous fuels reduction nationwide. In Phase 1, we developed an ETL pipeline template in FME Form, leveraging a schema-agnostic workflow with dynamic feature handling intended for fast roll-out and light maintenance. This was key as the initiative scaled from a few to over fifty contributors nationwide. By directly pulling from agency data stores, oftentimes ArcGIS Feature Services, NFT preserves existing structures, minimizing preparation needs. External mapping tables ensure consistent attribute and domain alignment, while robust change detection processes keep data current and actionable. Now in Phase 2, we’re migrating pipelines to FME Flow to take advantage of advanced scheduling, monitoring dashboards, and automated notifications to streamline operations. Join us to explore how this initiative exemplifies the power of technology, blending FME, ArcGIS Online, and AWS to solve a national business problem with a scalable, automated solution.
מכונות CNC קידוח אנכיות הן הבחירה הנכונה והטובה ביותר לקידוח ארונות וארגזים לייצור רהיטים. החלק נוסע לאורך ציר ה-x באמצעות ציר דיגיטלי מדויק, ותפוס ע"י צבת מכנית, כך שאין צורך לבצע setup (התאמות) לגדלים שונים של חלקים.
Mastering AI Workflows with FME - Peak of Data & AI 2025Safe Software
Harness the full potential of AI with FME: From creating high-quality training data to optimizing models and utilizing results, FME supports every step of your AI workflow. Seamlessly integrate a wide range of models, including those for data enhancement, forecasting, image and object recognition, and large language models. Customize AI models to meet your exact needs with FME’s powerful tools for training, optimization, and seamless integration
GIS and FME: The Foundation to Improve the Locate Process of UtilitiesSafe Software
Locate requests is an important activity for utility companies to prevent people who are digging from damaging underground assets. At Energir, locates were historically treated by our internal field technicians. It’s a very intensive and time-sensitive task during the summer season and it has a significant financial and environmental cost. Since locate requests tend to increase from year to year, it became clear that improvements were needed to keep delivering a quality service to requestors and keeping Energir’s assets safe. This presentation will explain how transformative projects done in the past years allowed to start sending locate plans to requestors without the intervention of field technicians. The analysis of the GIS data through FME workbenchs allows to filter some locate request types and process them semi-automatically. However, the experience gained so far shows that this process is limited by the fact that Energir’s is missing precise information about the spatial accuracy. Future plans are to precisely locate most of Energir’s gas network and FME will again be a huge help to integrate all the data that will be produced.
Improving Developer Productivity With DORA, SPACE, and DevExJustin Reock
Ready to measure and improve developer productivity in your organization?
Join Justin Reock, Deputy CTO at DX, for an interactive session where you'll learn actionable strategies to measure and increase engineering performance.
Leave this session equipped with a comprehensive understanding of developer productivity and a roadmap to create a high-performing engineering team in your company.
Your startup on AWS - How to architect and maintain a Lean and Mean account J...angelo60207
Prevent infrastructure costs from becoming a significant line item on your startup’s budget! Serial entrepreneur and software architect Angelo Mandato will share his experience with AWS Activate (startup credits from AWS) and knowledge on how to architect a lean and mean AWS account ideal for budget minded and bootstrapped startups. In this session you will learn how to manage a production ready AWS account capable of scaling as your startup grows for less than $100/month before credits. We will discuss AWS Budgets, Cost Explorer, architect priorities, and the importance of having flexible, optimized Infrastructure as Code. We will wrap everything up discussing opportunities where to save with AWS services such as S3, EC2, Load Balancers, Lambda Functions, RDS, and many others.
Jira Administration Training – Day 1 : IntroductionRavi Teja
This presentation covers the basics of Jira for beginners. Learn how Jira works, its key features, project types, issue types, and user roles. Perfect for anyone new to Jira or preparing for Jira Admin roles.
MCP vs A2A vs ACP: Choosing the Right Protocol | BluebashBluebash
Understand the differences between MCP vs A2A vs ACP agent communication protocols and how they impact AI agent interactions. Get expert insights to choose the right protocol for your system. To learn more, click here: https://www.bluebash.co/blog/mcp-vs-a2a-vs-acp-agent-communication-protocols/
Domino IQ – Was Sie erwartet, erste Schritte und Anwendungsfällepanagenda
Webinar Recording: https://www.panagenda.com/webinars/domino-iq-was-sie-erwartet-erste-schritte-und-anwendungsfalle/
HCL Domino iQ Server – Vom Ideenportal zur implementierten Funktion. Entdecken Sie, was es ist, was es nicht ist, und erkunden Sie die Chancen und Herausforderungen, die es bietet.
Wichtige Erkenntnisse
- Was sind Large Language Models (LLMs) und wie stehen sie im Zusammenhang mit Domino iQ
- Wesentliche Voraussetzungen für die Bereitstellung des Domino iQ Servers
- Schritt-für-Schritt-Anleitung zur Einrichtung Ihres Domino iQ Servers
- Teilen und diskutieren Sie Gedanken und Ideen, um das Potenzial von Domino iQ zu maximieren
Scaling GenAI Inference From Prototype to Production: Real-World Lessons in S...Anish Kumar
Presented by: Anish Kumar
LinkedIn: https://www.linkedin.com/in/anishkumar/
This lightning talk dives into real-world GenAI projects that scaled from prototype to production using Databricks’ fully managed tools. Facing cost and time constraints, we leveraged four key Databricks features—Workflows, Model Serving, Serverless Compute, and Notebooks—to build an AI inference pipeline processing millions of documents (text and audiobooks).
This approach enables rapid experimentation, easy tuning of GenAI prompts and compute settings, seamless data iteration and efficient quality testing—allowing Data Scientists and Engineers to collaborate effectively. Learn how to design modular, parameterized notebooks that run concurrently, manage dependencies and accelerate AI-driven insights.
Whether you're optimizing AI inference, automating complex data workflows or architecting next-gen serverless AI systems, this session delivers actionable strategies to maximize performance while keeping costs low.
If You Use Databricks, You Definitely Need FMESafe Software
DataBricks makes it easy to use Apache Spark. It provides a platform with the potential to analyze and process huge volumes of data. Sounds awesome. The sales brochure reads as if it is a can-do-all data integration platform. Does it replace our beloved FME platform or does it provide opportunities for FME to shine? Challenge accepted