Devoxx 2010Lukáš Křečan

2http://www.flickr.com/photos/campra/4399636954

15.11. - 19.11. - Antwerpy (Belgie)

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3http://picasaweb.google.com/JavaPolis.com/Devoxx2010#

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Důležitá čísla 1/42• 7• 8• 334-337• 28.7.2011• 5• 3 000 000 000• 20%• 20%• 30

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Parleys.com

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Agenda• Budoucnost Javy• Porovnání MVC frameworků• Performance anxiety• Emergent design• Puzzler

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Java SE: The Road Ahead Mark Reinhold

• Nové JSR 334-337• Java 7 – 28.7.2011

– JSR 203 NIO.2– JSR 292 Supporting Dynamically Typed Languages – JSR 334 Small Enhancements - Project Coin

• Java 8 – konec 2012– JSR 308 Annotations on Java Types– JSR 310 Date and Time API– JSR TBD More Small Enhancements - Project Coin– JSR 335 Lambda Expressions – JSR TBD Java Platform Module System

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Project Coin• Improved Type Inference for Generic Instance

Creation (diamond)• Multi-catch and more precise rethrow• try-with-resources statement• Strings in switch• Binary integral literals and underscores in

numeric literals• Simplified Varargs Method Invocation

13http://jazoon.com/Portals/0/Content/slides/tu_a5_0930-1030_coward_keynote.pdf

14http://jazoon.com/Portals/0/Content/slides/tu_a5_0930-1030_coward_keynote.pdf

15http://jazoon.com/Portals/0/Content/slides/tu_a5_0930-1030_coward_keynote.pdf

16http://jazoon.com/Portals/0/Content/slides/tu_a5_0930-1030_coward_keynote.pdf

17http://www.ordina.nl/~/media/Files/Onze%20dienstverlening/Technologie/Masterclass%20Brian%20Goetz%20%20Project%20Lambda.ashx

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Closing panel

http://picasaweb.google.com/JavaPolis.com/Devoxx2010#

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Backward compatibility• We should break it• If we will not do it, someone else will.• Language x Libraries

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JCP• Jigsaw will not be relevant in next few years.• Apache will never get TCK license

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http://static.raibledesigns.com/repository/presentations/Comparing_JVM_Web_Frameworks_Devoxx2010.pdf

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Comparison 1/2

http://bit.ly/jvm-frameworks-matrix

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Comparison 2/2

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42http://wiki.jvmlangsummit.com/images/1/1d/PerformanceAnxiety2010.pdf

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Demo:

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52http://nealford.com/downloads/conferences/2010/Emergent_Design(Neal_Ford).pdf

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Complexity

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Java puzzles

http://picasaweb.google.com/JavaPolis.com/Devoxx2010#5541358513258889570

72http://www.infoq.com/presentations/Java-Puzzlers

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Konec• Jděte na parleys.com• blog.krecan.net