Better Career with Java
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The document discusses Java career opportunities and provides an overview of Java. It summarizes: 1) The history of Java including its founding by James Gosling at Sun Microsystems in 1991 and later acquisition by Oracle. 2) The different editions of Java including Java SE, Java EE, Java ME, and others. 3) Popular Java web frameworks like Spring, Struts, JSF, and others and the features they provide. 4) How having skills in Java frameworks can enhance one's career, and how Java remains a strong career option due to its popularity and widespread use.
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Better Career with Java
- 1. (Better) Career in Java Mert ÇALIŞKAN March 2013 @ankarajug #javaizmirde
- 2. AnkaraJUG first event @ November 2012... Founding Fathers: Barış BAL Çağatay ÇİVİCİ Mert ÇALIŞKAN http://bit.ly/ankarajugKAYIT ankarajug.blogspot.com facebook.com/ankarajug twitter.com/ankarajug @ankarajug #javaizmirde
- 3. Mert ÇALIŞKAN 10+ years of experience w/ Java Coder @ T2.com.tr Open Source Software Advocate, Founder, Implementor Member of Apache Software Foundation and OpenLogic Expert Community Author of PrimeFaces Cookbook from PacktPub tr.linkedin.com/in/mertcaliskan @ankarajug #javaizmirde
- 4. To JAVA? or NOT..? :) Come to the Dark Side..! @ankarajug #javaizmirde
- 5. Agenda History of Java Versions of Java.. SE, EE and the others.. Java Web Frameworks Better career w/ Java Q&A @ankarajug #javaizmirde
- 6. YOU KNOW THIS TRANS-ATLANTIC? @ankarajug #javaizmirde
- 7. • RMS Titanic sank in North Atlantic Ocean on 15 April, 1912 on maiden voyage So Eventually Everything Dies...! Tragic analogy, ok :) • You, Me, All of Us... • Companies, Technologies... • Key point is: You should avoid not making it like Titanic, which sunk in 2hrs and 40 minutes...! @ankarajug #javaizmirde
- 8. Where it all began... Founded February 24, 1982 Sold to Oracle January 27, 2010 for $7.4 billion..! Sun was mainly selling Hardware, but they also working on computer software like Java, MySQL and NFS.. Founded in 1977 by Larry Ellison and a couple of clever guys, their motivation is to compete with IBM’s System R, which was a relational database. @ankarajug #javaizmirde
- 9. James Gosling... was the FATHER of Java Age: 69 Age: 58 $$$ makes you look younger..! Larry Ellison... is the new BOSS @ankarajug #javaizmirde
- 10. History of JAVA Java Language Project started in June 1991 (James Gosling and his fellas) First named as: OAK The Duke Running byteCode on Java Virtual Machine WORA (Write Once, Run Anywhere) First started with applets in the WEB world With the dawn of Java Enterprise Edition, Servlets made their way to rule the world. @ankarajug #javaizmirde
- 11. Editions of JAVA Java Card: application on smart cards Micro Edition (ME): mobile phones + set-top boxes Standard Edition (SE): Cool Software Platform The Duke Enterprise Edition (EE): Oracle’s Enterprise Computing Platform Java DB: Oracle’s supported version of Apache Derby. JavaFX: Aim was RIA (looks dead for me) Personal Java: (discontinued) Java edition for mobile and embedded systems based on Java 1.1.8 @ankarajug #javaizmirde
- 12. CHRONOLOGY OF JAVA SE JDK 1.0 JDK 1.1 Introducing January 23, February 19, 1997 Abstract Window Toolkit 1996 J2SE 1.2 Swing was on Board December 8, 1998 J2SE 1.3 HotSpot JVM and JNDI May 8, 2000 reg-ex, Java Web Start J2SE 1.4 embedded XML parser February 6, 2002 J2SE 1.5 New Cool Features on Language September 30, 2004 Generics, AutoBoxing, var-args & etc... @ankarajug #javaizmirde
- 13. CHRONOLOGY OF JAVA SE Renamed to Java SE instead of Java SE 6 J2SE from now on. December 11, 2006 Support for running scripting lang. like Rhino. Dynamic lang. support like Java SE 7 Groovy July 28, 2011 String in switch (finally!) Best is yet to come..! lambda expressions... Java SE 8 streaming..filtering.. Summer, 2013 closures... @ankarajug #javaizmirde
- 14. Enterprise JAVA Java EE = Java Enterprise Edition Extends Java SE javax.faces.* UI + JSF Related Stuff javax.servlet.* Handling HTTP invocations javax.enterprise.inject.* CDI, Like Spring dependency javax.ejb.* Inj. EJB Stuff javax.validation.* Bean Validation javax.persistence.* Persistency javax.transaction.* Stuff for transactions javax.jms.* Messaging Stuff @ankarajug #javaizmirde
- 15. CHRONOLOGY OF JAVA EE J2EE 1.2 J2EE 1.3 J2EE 1.4 December 12, 1999 Sept. 12, 2001 Nov. 11, 2003 Servlet 2.2 Servlet 2.3 Servlet 2.4 JSP JAX-WS Java EE 5 Servlet 2.5 EJB JAX-RS May 11, 2006 JMS JAX-B JTA JPA JAAS JSTL Java EE 6 JSF any many December 10, 2009 Servlet 3.0 EL more... @ankarajug #javaizmirde
- 16. Java Frameworks.. Ok you get to know the language in 4 years... But you DEFINITELY NEED to learn the frameworks. Java is mostly about frameworks (lots of open source ones). I think you ask yourselves now.. Which one should we go with? They differ in context, if you want do WEB, here is a list what you can find around. @ankarajug #javaizmirde
- 17. Java Frameworks.. UI Controller/Dep.Inj. JSF Struts Spring Guice HiveMind Spring MVC WebWork ZK picoContainer XWork Wicket Tapestry GWT Model/Persistence Layer Echo3 Cocoon Vaadin Hibernate iBatis Integration Toplink KODO Apache CXF Apache Axis2 IDE EclipseLink Eclipse IntelliJ Spring WS IDEA JDeveloper NetBEANS @ankarajug #javaizmirde
- 18. One framework to rule them ALL... Spring @ankarajug #javaizmirde
- 19. Java Frameworks.. Spring Spring Security SpringSource OSGi Test Stubs Spring Web Flow Spring Security Kerberos Spring Web Services Extension Spring Social Twitter Spring Dynamic Modules SpringSource dm Server Spring.NET CodeConfig Spring Integration SpringSource dm Kernel Spring.NET REST Client Spring Batch SpringSource dm Server Spring.NET Social Spring Batch Admin Samples Spring.NET Social Dropbox Spring.NET Spring Data Commons Spring.NET Social LinkedIn Spring AMQP Spring Data Spring.NET Social Twitter Spring AMQP.NET Spring Data JDBC Spring.NET Visual Studio 2010 Spring GemFire Spring Data JPA Extension Spring GemFire for .NET Spring Data Redis Spring Social Yammer Spring LDAP Spring Data Solr Spring Shell Spring Social Spring Mobile Spring Data GemFire Spring for Android Spring Data MongoDB Spring Migration Analyzer Spring IDE Spring Data Neo4j Spring Integration Splunk Spring BlazeDS Integration Spring Gemfire Spring Integration Print SpringSource Bundlor Spring Data Hadoop Spring Security SAML Spring Roo Spring Social Facebook Spring Python Spring Social LinkedIn @ankarajug #javaizmirde
- 20. Java Frameworks.. Spring Spring Security SpringSource OSGi Test Stubs Spring Web Flow Spring Security Kerberos Spring Web Services Extension Spring Social Twitter Spring Dynamic Modules SpringSource dm Server Spring.NET CodeConfig Spring Integration SpringSource dm Kernel Spring.NET REST Client Spring Batch SpringSource dm Server Spring.NET Social 53 Spring Batch Admin Samples Spring.NET Social Dropbox Spring.NET Spring Data Commons Spring.NET Social LinkedIn Spring AMQP Spring Data Spring.NET Social Twitter Spring AMQP.NET Spring Data JDBC Spring.NET Visual Studio 2010 Spring GemFire Spring Data JPA Extension Spring GemFire for .NET Spring Data Redis Spring Social Yammer Spring LDAP Spring Data Solr Spring Shell Spring Social Spring Mobile Spring Data GemFire Spring for Android Spring Data MongoDB Spring Migration Analyzer Spring IDE Spring Data Neo4j Spring Integration Splunk Spring BlazeDS Integration Spring Gemfire Spring Integration Print SpringSource Bundlor Spring Data Hadoop Spring Security SAML Spring Roo Spring Social Facebook Spring Python Spring Social LinkedIn @ankarajug #javaizmirde
- 21. Head Start...! PrimeFaces CXF Hamcrest Mockito Spring JPA Hibernate jUnit DEMO https://github.com/mulderbaba/testinfected AppFuse is a full-stack framework for building webapp on the JVM. http://appfuse.org/display/APF/AppFuse+QuickStart @ankarajug #javaizmirde
- 22. Open Source Licenses Question here is: But how do they license these frameworks? How can I use them in a free way? Open Source Initiative @ankarajug #javaizmirde
- 23. Open Source Licenses Academic Free License 3.0 (AFL-3.0) MirOS Licence (MirOS) Affero GNU Public License: See "GNU Affero General Public License Microsoft Public License (MS-PL) 3.0 (AGPL-3.0)" Microsoft Reciprocal License (MS-RL) Question here is: Adaptive Public License (APL-1.0) Apache License 2.0 (Apache-2.0) Apple Public Source License (APSL-2.0) MIT license (MIT) Motosoto License (Motosoto) Mozilla Public License 2.0 (MPL-2.0) But how do they license these frameworks? Artistic license 2.0 (Artistic-2.0) Attribution Assurance Licenses (AAL) BSD 3-Clause "New" or "Revised" License (BSD-3-Clause) Multics License (Multics) NASA Open Source Agreement 1.3 (NASA-1.3) NTP License (NTP) How can I use them in a free way? BSD 2-Clause "Simplified" or "FreeBSD" License (BSD-2-Clause) Naumen Public License (Naumen) Boost Software License (BSL-1.0) Nethack General Public License (NGPL) Computer Associates Trusted Open Source License 1.1 (CATOSL-1.1) Nokia Open Source License (Nokia) Common Development and Distribution License 1.0 (CDDL-1.0) Non-Profit Open Software License 3.0 (NPOSL-3.0) Common Public Attribution License 1.0 (CPAL-1.0) OCLC Research Public License 2.0 (OCLC-2.0) CUA Office Public License Version 1.0 (CUA-OPL-1.0) Open Font License 1.1 (OFL-1.1) EU DataGrid Software License (EUDatagrid) Open Group Test Suite License (OGTSL) Eclipse Public License 1.0 (EPL-1.0) Open Software License 3.0 (OSL-3.0) Educational Community License, Version 2.0 (ECL-2.0) PHP License 3.0 (PHP-3.0) Eiffel Forum License V2.0 (EFL-2.0) The PostgreSQL License (PostgreSQL) Entessa Public License (Entessa) Python License (Python-2.0) (overall Python license) European Union Public License, Version 1.1 (EUPL-1.1) (links to every CNRI Python license (CNRI-Python) (CNRI portion of Python License) language's version on their site) Q Public License (QPL-1.0) Fair License (Fair) RealNetworks Public Source License V1.0 (RPSL-1.0) Frameworx License (Frameworx-1.0) Reciprocal Public License 1.5 (RPL-1.5) GNU Affero General Public License v3 (AGPL-3.0) Ricoh Source Code Public License (RSCPL) GNU General Public License version 2.0 (GPL-2.0) Simple Public License 2.0 (SimPL-2.0) GNU General Public License version 3.0 (GPL-3.0) Sleepycat License (Sleepycat) GNU Library or "Lesser" General Public License version 2.1 (LGPL-2.1) Sun Public License 1.0 (SPL-1.0) GNU Library or "Lesser" General Public License version 3.0 Sybase Open Watcom Public License 1.0 (Watcom-1.0) (LGPL-3.0) University of Illinois/NCSA Open Source License (NCSA) Historical Permission Notice and Disclaimer (HPND) Vovida Software License v. 1.0 (VSL-1.0) IBM Public License 1.0 (IPL-1.0) W3C License (W3C) IPA Font License (IPA) ISC License (ISC) Open Source Initiative wxWindows Library License (WXwindows) X.Net License (Xnet) LaTeX Project Public License 1.3c (LPPL-1.3c) Zope Public License 2.0 (ZPL-2.0) Lucent Public License Version 1.02 (LPL-1.02) zlib/libpng license (Zlib) @ankarajug #javaizmirde
- 24. Open Source Licenses Academic Free License 3.0 (AFL-3.0) MirOS Licence (MirOS) Affero GNU Public License: See "GNU Affero General Public License Microsoft Public License (MS-PL) 3.0 (AGPL-3.0)" Microsoft Reciprocal License (MS-RL) Question here is: Adaptive Public License (APL-1.0) Apache License 2.0 (Apache-2.0) Apple Public Source License (APSL-2.0) MIT license (MIT) Motosoto License (Motosoto) Mozilla Public License 2.0 (MPL-2.0) But how do they license these frameworks? Artistic license 2.0 (Artistic-2.0) Attribution Assurance Licenses (AAL) BSD 3-Clause "New" or "Revised" License (BSD-3-Clause) Multics License (Multics) NASA Open Source Agreement 1.3 (NASA-1.3) NTP License (NTP) How can I use them in a free way? BSD 2-Clause "Simplified" or "FreeBSD" License (BSD-2-Clause) Naumen Public License (Naumen) Boost Software License (BSL-1.0) Nethack General Public License (NGPL) 69 Computer Associates Trusted Open Source License 1.1 (CATOSL-1.1) Nokia Open Source License (Nokia) Common Development and Distribution License 1.0 (CDDL-1.0) Non-Profit Open Software License 3.0 (NPOSL-3.0) Common Public Attribution License 1.0 (CPAL-1.0) OCLC Research Public License 2.0 (OCLC-2.0) CUA Office Public License Version 1.0 (CUA-OPL-1.0) Open Font License 1.1 (OFL-1.1) EU DataGrid Software License (EUDatagrid) Open Group Test Suite License (OGTSL) Eclipse Public License 1.0 (EPL-1.0) Open Software License 3.0 (OSL-3.0) Educational Community License, Version 2.0 (ECL-2.0) PHP License 3.0 (PHP-3.0) Eiffel Forum License V2.0 (EFL-2.0) The PostgreSQL License (PostgreSQL) Entessa Public License (Entessa) Python License (Python-2.0) (overall Python license) European Union Public License, Version 1.1 (EUPL-1.1) (links to every CNRI Python license (CNRI-Python) (CNRI portion of Python License) language's version on their site) Q Public License (QPL-1.0) Fair License (Fair) RealNetworks Public Source License V1.0 (RPSL-1.0) Frameworx License (Frameworx-1.0) Reciprocal Public License 1.5 (RPL-1.5) GNU Affero General Public License v3 (AGPL-3.0) Ricoh Source Code Public License (RSCPL) GNU General Public License version 2.0 (GPL-2.0) Simple Public License 2.0 (SimPL-2.0) GNU General Public License version 3.0 (GPL-3.0) Sleepycat License (Sleepycat) GNU Library or "Lesser" General Public License version 2.1 (LGPL-2.1) Sun Public License 1.0 (SPL-1.0) GNU Library or "Lesser" General Public License version 3.0 Sybase Open Watcom Public License 1.0 (Watcom-1.0) (LGPL-3.0) University of Illinois/NCSA Open Source License (NCSA) Historical Permission Notice and Disclaimer (HPND) Vovida Software License v. 1.0 (VSL-1.0) IBM Public License 1.0 (IPL-1.0) W3C License (W3C) IPA Font License (IPA) ISC License (ISC) Open Source Initiative wxWindows Library License (WXwindows) X.Net License (Xnet) LaTeX Project Public License 1.3c (LPPL-1.3c) Zope Public License 2.0 (ZPL-2.0) Lucent Public License Version 1.02 (LPL-1.02) zlib/libpng license (Zlib) @ankarajug #javaizmirde
- 25. Must Read Books... @ankarajug #javaizmirde
- 26. Must Read Books... @ankarajug #javaizmirde
- 27. Must Read Books... @ankarajug #javaizmirde
- 28. Must Read Books... @ankarajug #javaizmirde
- 29. Must Read Books... @ankarajug #javaizmirde
- 30. The Java Magazine... http://www.oracle.com/technetwork/java/ javamagazine/ bi-monthly since 2011..!!! For Free..!!! @ankarajug #javaizmirde
- 31. Google Summer of Code For the love of code since 2005... around 6000 students meet 3000 mentors of OSS from over 100 countries... Mutual benefits : you get ~5000$, you can use the stuff for summer internship and google gets the OSS support. http://bit.ly/GSOC2013 @ankarajug #javaizmirde
- 32. Resume Preparation People skim resumes... So make it to the point as much as possible It’s not what you know. It’s what you’ve done with what you know... Keep it short 1 to 3 sentences, 1 to 3 pages at most @ankarajug #javaizmirde
- 33. Where can I work on Java? X X X X XX X X X X X X X X XX Currently 18 technoparks located in Turkey... @ankarajug #javaizmirde
- 34. Career in JAVA Participate in Open Source Be a Contributor / or better: be a Committer Learn the Language from inside out... Oracle Certifications are one way to go... Java SE 7 Programmer Java EE6 Web Component Developer Java EE6 Enterprise JavaBeans Developer Java EE6 Java Persistence API Developer Java EE6 Web Services Developer Java EE 6 Enterprise Architect @ankarajug #javaizmirde
- 35. Will it Compile??? int €i = 1; YUP...! Literals can start with letter, connecting character like "_", and currency character. @ankarajug #javaizmirde
- 36. Will it Compile??? int €i = 1; YUP...! Literals can start with letter, connecting character like "_", and currency character. @ankarajug #javaizmirde
- 37. Will it Compile??? float f this one's double by Nope..won't compile, = 320.0; default. @ankarajug #javaizmirde
- 38. Will it Compile??? float f = 320.0; Nope..won't compile, this one's double by default. @ankarajug #javaizmirde
- 39. Will it Compile??? char c = -80; Nope... you cannot assign int to char and char is between 0-65535, so you will get gibberish output. @ankarajug #javaizmirde
- 40. Will it Compile??? char c = -80; Nope... you cannot assign int to char and char is between 0-65535, so you will get gibberish output. @ankarajug #javaizmirde
- 41. public final class String implements java.io.Serializable, java.lang.Comparable<java.lang.String>, Can you extend String??? java.lang.CharSequence { .... .... } @ankarajug #javaizmirde
- 42. Can you extend String??? public final class String implements java.io.Serializable, java.lang.Comparable<java.lang.String>, java.lang.CharSequence { .... .... } @ankarajug #javaizmirde
- 43. For better career... Experience Communication Knowledge Professionalism Creativity @ankarajug #javaizmirde
- 44. For better career... Know broad... Know deep... Experience Communication Knowledge Professionalism Creativity If you know Java then dive into the frameworks.. If you know all of them go through scripting languages... Know you stuff very well... @ankarajug #javaizmirde
- 45. For better career... Stay Current... Use your knowledge... Experience Communication Knowledge Professionalism Creativity Practice... Practice... Practice... @ankarajug #javaizmirde
- 46. For better career... Be Open-Minded... Experience Communication Knowledge Professionalism Creativity Listen to people’s thoughts.. They’re more valuable than you think.. You CANNOT know everything..! @ankarajug #javaizmirde
- 47. For better career... Reject the status quo... Experience Communication Knowledge Professionalism Creativity Don’t be a rebellion but don’t kill the rebellion inside you... @ankarajug #javaizmirde
- 48. For better career... Take and accept the responsibility... Experience Communication Knowledge Professionalism Creativity Make it all in a classy way... @ankarajug #javaizmirde
- 49. To sum up on career... You are the one that will be building your OWN career. Work for your employer and work for yourself also... Take the time to build your skills: your knowledge, your communication skills, your experience. And don’t kill the child inside you, make it creative as always... Act Professional, because you have to be a ONE..! @ankarajug #javaizmirde
- 50. To sum up... JAVA is still HOT TOPIC... Read Read Read... Participate...Be Active...Be a part of JAVA :) Oracle is investing on Java so best is yet to come. Take a leap, dive into Java, build your career on it. @ankarajug #javaizmirde
- 51. JUST DO IT @ankarajug #javaizmirde
- 52. E0F @ankarajug #javaizmirde @ankarajug #javaizmirde