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London Java Community:Clojure for Java Programmers
Clojure for Java Programmers
Rich Hickey delivers an overview on the dynamic functional programming language for the Java Virtual Machine (JVM), Clojure. This talk thoroughly explains the robust concurrent nature nature of the language and its flexibility as a general purpose language.

Rich warms up by describing the fundamental concepts and moves onto the syntax and the evaluation model implemented in Clojure. He explains that Clojure was designed to be hosted on a virtual machine (either JVM or .NET) to provide very transparent inter-operability with the aid of wrapper free access (to Java). Since Clojure is compiled, it provides very fast performance and therefore is a real alternative to replace existing Java codes. The compiler is extremely extensible through the use of user definable macros to expand on the small core.

Later in the talk, Rich Hickey outlines the ease of interactivity of Clojure with Java and then explains the primary concept behind concurrency in the language with minimal effort on the programmer’s side. The architecture behind Clojure uses immutable persistent objects, meaning all references to chunks in memory are automatically indirectly controlled. Resultantly, when a change is required, a duplicate is created and operated upon to prevent the possibility of inconsistent views on the original structure.

WANT TO LEARN MORE? THEN CHECK OUT OUR EXPERT WORKSHOPS!

Tomas Petricek & Phil Trelford's Functional Programming in C# and F#

Tomas Petricek’s and Phil Trelford’s two-day Functional Programming in .NET course explains concepts that you need to write modern applications for .NET using F#, C# with LINQ as well as current and upcoming .NET technologies that arise from functional programming ideas. Learning several simple functional concepts will help you understand these technologies and use them effectively. This means that the course will make you a better programmer even if you’re not going to immediately start using F#. This course is based on experience of developing commercial applications in F# and we’ll discuss good ways of introducing F# to your daily work.. Find out more here

Typesafe's Advanced Scala

If you already have some programming experience with Scala and need to understand it's advanced features, Typesafe's Advanced Scala will show you how to unleash the full power of this scalable language.

It is intended to enable developers, who have at least 3 months programming experience with Scala and feel comfortable to use it in their applications, to fully understand various advanced features of this programming language and how to apply these to create well designed libraries or DSLs using proven practices. Find out more here

Russel Winder's Python Workshop

In this 4-day Python Workshop, you will learn both low-level details of Python as well as the idiomatic design approaches in Python. We'll start with the language basics after which we discuss various testing strategies and their rationale. Through lectures, exercises and discussions, we'll introduce Concurrency and Parallelism after which we'll learn about GUI's. We'll then explore Networking, XML processing and Persistence when developing applications with Python. On the final day of this Python course, you'll work on an example of Python DSL, we'll learn about Python extensions and extension testing and we'll finish the course with an introduction to Django, Python Web Application frameworks and how to use dynamic techniques. Find out more here

Tomas Petricek and Phil Trelford’s Advanced F# Programming

Tomas Petricek’s and Phil Trelford’s two day course will teach you how to solve real-world .NET problems in F#. Will guide you through several areas where F# can help you be more productive and solve your problems faster, with code that is efficient and easy to maintain. The examples used in this course are based on experience of developing successful commercial applications in F#. In particular, you’ll learn how to benefit from functional concepts when writing concurrent applications; how to obtain, process and visualize data and how to easily solve seemingly complex algorithmic problems. After attending the course, you’ll be able to recognize where using F# can save your time and money and you’ll know how to integrate F# components in the .NET ecosystem. Find out more here

David Pollak's Lift Basics Workshop

This Lift Basics course by David Pollak (creator of Lift) introduces Scala and Java developers to the Lift Web Framework. You will learn how to create dynamic, interactive, secure web sites using Lift. This Lift course covers creating a basic Lift project, dynamic content with Snippets, site navigation and access control via SiteMap, forms including multi-page Wizards, and creating real-time, scalable sites with Lift's Comet support. Wether you are a Scala newbie or an intermediate Java developer, David's practical hands-on style will help you understand Lift's Java and Scala API's. Upon completion of this Lift course, you will be able to create secure, dynamic Lift based sites. Find out more here

Typesafe's Fast Track to Scala

This two-day Fast Track to Scala course, designed by Martin Odersky, the creator of the Scala programming language, and Heiko Seeberger, a recognized Scala expert, will give you an excellent grounding in Scala.
    LEARN HOW TO:
  • be a competent user of Scala constructs in application code
  • know and be able to apply the functional programming style in Scala
  • know how to use the fundamental Scala tools
  • be confident to start using Scala in production applications
Find out more here

Typesafe's Fast Track to Play

This one-day course, designed by Fredrik Ekholdt, a Scala and web application expert, and Peter Hausel, one of the main Play committers, is what you need to quick start your web application development with Play 2.0. This Play 2.0 course is intended to enable you to consolidate your Scala skills and to learn about this great web framework. The course is very practical and centred around a web application that you will build from the ground up using Play 2.0. Find out more here


ABOUT RICH HICKEY
Rich Hickey, the author of Clojure and designer of Datomic, is a software developer with over 25 years of experience in various domains.
More about Rich Hickey

ABOUT THE LONDON JAVA COMMUNITY
The LJC currently has circa 2000 members. It was founded by Barry Cranford of RecWorks Ltd. The LJC is organised and run by Barry Cranford, Martijn Verburg and Ben Evans along with a committee of passionate Java enthusiasts.
More about the London Java Community
PODCAST CLOJURE FOR JAVA PROGRAMMERS
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PROGRESSIVE JAVA PODCASTS
Russ Miles: From Patterns to Code: Coding Simple Event-Driven Components for Agile Software, From Patterns to Code: Coding Simple Ev
Russ Miles : 23rd May 2013
View Podcast:  From Patterns to Code: Coding Simple Event-Driven Components for Agile Software,
Russ Miles:Fighting for Simplicity with Spring, Fighting for Simplicity with Spring
Russ Miles : 21st May 2013
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David Syer:Spring Security Javaconfig: New Kid on the @Configuration Block, Spring Security Javaconfig: New Kid on t
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 :STORM for streaming analytics at scale: a case study on cybersecurity, Streaming analytics at scale
: 16th May 2013
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Nick Zeeb:High Performance Design, High Performance Design
Nick Zeeb : 14th May 2013
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Mikhail Kirvoshein:Different Measures Of Application Performance , Measures Of Application Performance
Mikhail Kirvoshein : 14th May 2013
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Dmitry Buzdin:Writing Hybrid GWT/JavaScript Applications , Writing Hybrid GWT/JavaScript Applicatio
Dmitry Buzdin : 13th May 2013
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Yodit Stanton:Machine Learning with Storm + Redis, Machine Learning with Storm + Redis
Yodit Stanton : 7th May 2013
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Akmal  Chaudhri :Considerations for using NoSQL technology on your next IT project, Considerations for using NoSQL technolog
Akmal Chaudhri : 7th May 2013
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Bruce Durling:Cascalog for the 80% of Data Science, Cascalog for the 80% of Data Science
Bruce Durling : 7th May 2013
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Various Speakers:Lightning Talks, Lightning Talks
Various Speakers : 7th May 2013
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Hadi Hariri:Introduction to Kotlin Workshop, Intro to Kotlin Workshop
Hadi Hariri : 2nd May 2013
Podcast Coming Soon: Introduction to Kotlin Workshop,
Simon Maple:Do you really get class loaders?, Do you really get class loaders?
Simon Maple : 25th Apr 2013
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Robert Rees:Feature Releasing: Breaking the two week cycle, Feature Releasing
Robert Rees : 25th Apr 2013
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Russ Miles:Architectural Simplicity through Events: A war story of managing the challenge of integration and flexibility , Architectural Simplicity through Events
Russ Miles : 24th Apr 2013
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OTHER PROGRESSIVE JAVA EVENTS
Neo4J User Group:Discuss a little Graph Theory for the Busy Developer, Neo4J User Group
FREE EVENT: Discuss a little Graph Theory
London, Wednesday, May 29th
Jon Pither Functional Programming in the enterprise,  Functional Programming in the enterprise
FREE EVENT: In The Brain of Jon Pither
London, Monday, June 3rd
Bert Ertman Best Practices for Migrating Spring Applications to Java EE 6,  Best Practices for Migrating Spring Applications to Java EE 6
FREE EVENT: In The Brain of Bert Ertman
London, Tuesday, June 4th
The London Clojure Community:Deuce is (not yet) Emacs under Clojure, The London Clojure Community
FREE EVENT: Deuce is (not yet) Emacs under
London, Tuesday, June 4th
Luke Daley:Hans Dockter's Gradle In-Depth,  Hans Dockter's Gradle In-Depth
3 DAY COURSE. Featuring Luke Daley
London, Wednesday, June 5th
Martin Thompson:Writing Concurrent Code with Lock-Free Algorithms with Martin Thompson,  Writing Concurrent Code with Lock-Free Algorithms
3 DAY COURSE. Featuring Martin Thompson
London, Wednesday, June 5th
London Java Community:Java Development Testing, London Java Community
FREE EVENT: Java Development Testing
London, Thursday, June 6th
Peter Ledbrook:SpringSource's Groovy and Grails Workshop,  Springsource's Groovy & Grails Workshop
4 DAY COURSE. Featuring Peter Ledbrook
London, Monday, June 10th
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