better career with java

@ankarajug #javaizmirde

(Better)Career in Java

Mert ÇALIŞKANMarch 2013


AnkaraJUG

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first event @ November 2012...

Founding Fathers: Barış BAL Çağatay ÇİVİCİ Mert ÇALIŞKAN

http://bit.ly/ankarajugKAYIT




Mert ÇALIŞKAN

Open Source Software Advocate, Founder, Implementor

Member of Apache Software Foundation and OpenLogic ExpertCommunity

Author of PrimeFaces Cookbook from PacktPub

10+ years of experience w/ Java

Coder @ T2.com.tr

tr.linkedin.com/in/mertcaliskan


To JAVA? or NOT..? :)Come to the Dark Side..!


Agenda

History of Java

Versions of Java.. SE, EE and the others..

Java Web Frameworks

Better career w/ Java

Q & A


YOU KNOW THIS TRANS-ATLANTIC?


• RMS Titanic sank in North Atlantic Oceanon 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...!


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.


James Gosling... was the FATHER of Java

Larry Ellison... is the new BOSS

Age: 69

Age: 58$$$ makes you look

younger..!


History of JAVAJava Language Project started in June 1991

(James Gosling and his fellas)

First named as: OAK

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.

The Duke


Editions of JAVAJava Card: application on smart cards

Micro Edition (ME): mobile phones + set-top boxes

Standard Edition (SE): Cool Software Platform

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

The Duke


CHRONOLOGY OF JAVA SEJDK 1.0

January 23, 1996

JDK 1.1 February 19, 1997

Introducing Abstract Window Toolkit

J2SE 1.2 December 8, 1998Swing was on Board

J2SE 1.3 May 8, 2000HotSpot JVM and JNDI

J2SE 1.5 September 30,

2004

New Cool Features on LanguageGenerics, AutoBoxing, var-args & etc...

J2SE 1.4 February 6, 2002

reg-ex, Java Web Startembedded XML parser


CHRONOLOGY OF JAVA SE

Java SE 6December 11, 2006

Java SE 7July 28, 2011

Java SE 8Summer, 2013

Best is yet to come..!lambda expressions... streaming..filtering..

closures...

Dynamic lang. support like Groovy

String in switch (finally!)

Renamed to Java SE instead of J2SE from now on.Support for running scripting lang. like Rhino.


Enterprise JAVA

Java EE = Java Enterprise Edition

Extends Java SE

javax.faces.* UI + JSF Related Stuffjavax.servlet.* Handling HTTP invocations

javax.enterprise.inject.* CDI, Like Spring dependency Inj.javax.ejb.* EJB Stuff

javax.validation.* Bean Validationjavax.persistence.* Persistencyjavax.transaction.* Stuff for transactions

javax.jms.* Messaging Stuff


CHRONOLOGY OF JAVA EE

Java EE 5May 11, 2006

Java EE 6December 10, 2009

J2EE 1.2December 12, 1999

J2EE 1.3 Sept. 12, 2001

J2EE 1.4 Nov. 11, 2003

Servlet 2.2 Servlet 2.3 Servlet 2.4

JSPEJBJMSJTAJAASJSFEL

JAX-WSJAX-RSJAX-BJPAJSTL

any manymore...

Servlet 2.5

Servlet 3.0


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.


Java Frameworks..

JSF

WebWork

Struts

Spring MVC

Tapestry

Spring Guice

Hibernate iBatis

Toplink KODO

EclipseLink

Model/Persistence Layer

picoContainer

Controller/Dep.Inj.

HiveMind

XWork

Apache CXF

Spring WS

IntegrationApache Axis2

UI

IDE

Eclipse IntelliJ IDEA

JDeveloper

Wicket GWT

NetBEANS

Cocoon

ZK

Echo3 Vaadin


One framework to rule them ALL...

Spring


Java Frameworks..Spring

Spring SecuritySpring Web Flow

Spring Web ServicesSpring Dynamic Modules

Spring IntegrationSpring Batch

Spring Batch AdminSpring.NET

Spring AMQPSpring AMQP.NETSpring GemFire

Spring GemFire for .NETSpring LDAPSpring Social

Spring for AndroidSpring IDE

Spring BlazeDS IntegrationSpringSource Bundlor

Spring RooSpring Python

SpringSource OSGi Test StubsSpring Security Kerberos

ExtensionSpringSource dm ServerSpringSource dm KernelSpringSource dm Server

SamplesSpring Data Commons

Spring DataSpring Data JDBCSpring Data JPASpring Data RedisSpring Data SolrSpring Mobile

Spring Data MongoDBSpring Data Neo4j

Spring GemfireSpring Data Hadoop

Spring Social FacebookSpring Social LinkedIn

Spring Social TwitterSpring.NET CodeConfigSpring.NET REST Client

Spring.NET SocialSpring.NET Social DropboxSpring.NET Social LinkedInSpring.NET Social Twitter

Spring.NET Visual Studio 2010 Extension

Spring Social YammerSpring Shell

Spring Data GemFireSpring Migration AnalyzerSpring Integration SplunkSpring Integration PrintSpring Security SAML


Java Frameworks..Spring

Spring SecuritySpring Web Flow

Spring Web ServicesSpring Dynamic Modules

Spring IntegrationSpring Batch

Spring Batch AdminSpring.NET

Spring AMQPSpring AMQP.NETSpring GemFire

Spring GemFire for .NETSpring LDAPSpring Social

Spring for AndroidSpring IDE

Spring BlazeDS IntegrationSpringSource Bundlor

Spring RooSpring Python

SpringSource OSGi Test StubsSpring Security Kerberos

ExtensionSpringSource dm ServerSpringSource dm KernelSpringSource dm Server

SamplesSpring Data Commons

Spring DataSpring Data JDBCSpring Data JPASpring Data RedisSpring Data SolrSpring Mobile

Spring Data MongoDBSpring Data Neo4j

Spring GemfireSpring Data Hadoop

Spring Social FacebookSpring Social LinkedIn

Spring Social TwitterSpring.NET CodeConfigSpring.NET REST Client

Spring.NET SocialSpring.NET Social DropboxSpring.NET Social LinkedInSpring.NET Social Twitter

Spring.NET Visual Studio 2010 Extension

Spring Social YammerSpring Shell

Spring Data GemFireSpring Migration AnalyzerSpring Integration SplunkSpring Integration PrintSpring Security SAML

53


Head Start...!

DEMOhttps://github.com/mulderbaba/testinfected

JPA

PrimeFaces

HibernateSpring

CXF Hamcrest

jUnit

Mockito

AppFuse

http://appfuse.org/display/APF/AppFuse+QuickStart

is a full-stack framework for building webapp on the JVM.






Open Source LicensesAcademic Free License 3.0 (AFL-3.0)Affero GNU Public License: See "GNU Affero General Public License 3.0 (AGPL-3.0)"Adaptive Public License (APL-1.0)Apache License 2.0 (Apache-2.0)Apple Public Source License (APSL-2.0)Artistic license 2.0 (Artistic-2.0)Attribution Assurance Licenses (AAL)BSD 3-Clause "New" or "Revised" License (BSD-3-Clause)BSD 2-Clause "Simplified" or "FreeBSD" License (BSD-2-Clause)Boost Software License (BSL-1.0)Computer Associates Trusted Open Source License 1.1 (CATOSL-1.1)Common Development and Distribution License 1.0 (CDDL-1.0)Common Public Attribution License 1.0 (CPAL-1.0)CUA Office Public License Version 1.0 (CUA-OPL-1.0)EU DataGrid Software License (EUDatagrid)Eclipse Public License 1.0 (EPL-1.0)Educational Community License, Version 2.0 (ECL-2.0)Eiffel Forum License V2.0 (EFL-2.0)Entessa Public License (Entessa)European Union Public License, Version 1.1 (EUPL-1.1) (links to every language's version on their site)Fair License (Fair)Frameworx License (Frameworx-1.0)GNU Affero General Public License v3 (AGPL-3.0)GNU General Public License version 2.0 (GPL-2.0)GNU General Public License version 3.0 (GPL-3.0)GNU Library or "Lesser" General Public License version 2.1 (LGPL-2.1)GNU Library or "Lesser" General Public License version 3.0 (LGPL-3.0)Historical Permission Notice and Disclaimer (HPND)IBM Public License 1.0 (IPL-1.0)IPA Font License (IPA)ISC License (ISC)LaTeX Project Public License 1.3c (LPPL-1.3c)Lucent Public License Version 1.02 (LPL-1.02)

MirOS Licence (MirOS)Microsoft Public License (MS-PL)Microsoft Reciprocal License (MS-RL)MIT license (MIT)Motosoto License (Motosoto)Mozilla Public License 2.0 (MPL-2.0)Multics License (Multics)NASA Open Source Agreement 1.3 (NASA-1.3)NTP License (NTP)Naumen Public License (Naumen)Nethack General Public License (NGPL)Nokia Open Source License (Nokia)Non-Profit Open Software License 3.0 (NPOSL-3.0)OCLC Research Public License 2.0 (OCLC-2.0)Open Font License 1.1 (OFL-1.1)Open Group Test Suite License (OGTSL)Open Software License 3.0 (OSL-3.0)PHP License 3.0 (PHP-3.0)The PostgreSQL License (PostgreSQL)Python License (Python-2.0) (overall Python license)CNRI Python license (CNRI-Python) (CNRI portion of Python License)Q Public License (QPL-1.0)RealNetworks Public Source License V1.0 (RPSL-1.0)Reciprocal Public License 1.5 (RPL-1.5)Ricoh Source Code Public License (RSCPL)Simple Public License 2.0 (SimPL-2.0)Sleepycat License (Sleepycat)Sun Public License 1.0 (SPL-1.0)Sybase Open Watcom Public License 1.0 (Watcom-1.0)University of Illinois/NCSA Open Source License (NCSA)Vovida Software License v. 1.0 (VSL-1.0)W3C License (W3C)wxWindows Library License (WXwindows)X.Net License (Xnet)Zope Public License 2.0 (ZPL-2.0)zlib/libpng license (Zlib)

Question here is:But how do they license these frameworks?

How can I use them in a free way?

Open Source Initiative


Open Source LicensesAcademic Free License 3.0 (AFL-3.0)Affero GNU Public License: See "GNU Affero General Public License 3.0 (AGPL-3.0)"Adaptive Public License (APL-1.0)Apache License 2.0 (Apache-2.0)Apple Public Source License (APSL-2.0)Artistic license 2.0 (Artistic-2.0)Attribution Assurance Licenses (AAL)BSD 3-Clause "New" or "Revised" License (BSD-3-Clause)BSD 2-Clause "Simplified" or "FreeBSD" License (BSD-2-Clause)Boost Software License (BSL-1.0)Computer Associates Trusted Open Source License 1.1 (CATOSL-1.1)Common Development and Distribution License 1.0 (CDDL-1.0)Common Public Attribution License 1.0 (CPAL-1.0)CUA Office Public License Version 1.0 (CUA-OPL-1.0)EU DataGrid Software License (EUDatagrid)Eclipse Public License 1.0 (EPL-1.0)Educational Community License, Version 2.0 (ECL-2.0)Eiffel Forum License V2.0 (EFL-2.0)Entessa Public License (Entessa)European Union Public License, Version 1.1 (EUPL-1.1) (links to every language's version on their site)Fair License (Fair)Frameworx License (Frameworx-1.0)GNU Affero General Public License v3 (AGPL-3.0)GNU General Public License version 2.0 (GPL-2.0)GNU General Public License version 3.0 (GPL-3.0)GNU Library or "Lesser" General Public License version 2.1 (LGPL-2.1)GNU Library or "Lesser" General Public License version 3.0 (LGPL-3.0)Historical Permission Notice and Disclaimer (HPND)IBM Public License 1.0 (IPL-1.0)IPA Font License (IPA)ISC License (ISC)LaTeX Project Public License 1.3c (LPPL-1.3c)Lucent Public License Version 1.02 (LPL-1.02)

MirOS Licence (MirOS)Microsoft Public License (MS-PL)Microsoft Reciprocal License (MS-RL)MIT license (MIT)Motosoto License (Motosoto)Mozilla Public License 2.0 (MPL-2.0)Multics License (Multics)NASA Open Source Agreement 1.3 (NASA-1.3)NTP License (NTP)Naumen Public License (Naumen)Nethack General Public License (NGPL)Nokia Open Source License (Nokia)Non-Profit Open Software License 3.0 (NPOSL-3.0)OCLC Research Public License 2.0 (OCLC-2.0)Open Font License 1.1 (OFL-1.1)Open Group Test Suite License (OGTSL)Open Software License 3.0 (OSL-3.0)PHP License 3.0 (PHP-3.0)The PostgreSQL License (PostgreSQL)Python License (Python-2.0) (overall Python license)CNRI Python license (CNRI-Python) (CNRI portion of Python License)Q Public License (QPL-1.0)RealNetworks Public Source License V1.0 (RPSL-1.0)Reciprocal Public License 1.5 (RPL-1.5)Ricoh Source Code Public License (RSCPL)Simple Public License 2.0 (SimPL-2.0)Sleepycat License (Sleepycat)Sun Public License 1.0 (SPL-1.0)Sybase Open Watcom Public License 1.0 (Watcom-1.0)University of Illinois/NCSA Open Source License (NCSA)Vovida Software License v. 1.0 (VSL-1.0)W3C License (W3C)wxWindows Library License (WXwindows)X.Net License (Xnet)Zope Public License 2.0 (ZPL-2.0)zlib/libpng license (Zlib)

Question here is:But how do they license these frameworks?

How can I use them in a free way?

Open Source Initiative

69


Must Read Books...


The Java Magazine...

http://www.oracle.com/technetwork/java/javamagazine/

bi-monthly since 2011..!!!For Free..!!!






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.

Google Summer of Code

http://bit.ly/GSOC2013

http://www.google-melange.com/gsoc/homepage/google/gsoc2013

http://www.google-melange.com/gsoc/homepage/google/gsoc2013


Resume Preparation

People skim resumes... So makeit 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 short1 to 3 sentences, 1 to 3 pages at most


Where can I work on Java?

X XXXX

XX

XX

X

XX

XX

X

X

Currently 18 technoparks located in Turkey...

X


Career in JAVAParticipate 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 ProgrammerJava EE6 Web Component Developer

Java EE6 Enterprise JavaBeans DeveloperJava EE6 Java Persistence API Developer

Java EE6 Web Services DeveloperJava EE 6 Enterprise Architect


Will it Compile???

int €i = 1;YUP...! Literals can start with letter, connecting character like "_", and

currency character.


Will it Compile???

float f = 320.0;Nope..won't compile, this one's double by default.


Will it Compile???

float f = 320.0;Nope..won't compile, this one's double by

default.


Will it Compile???

Nope... you cannot assign int to char and char is between 0-65535, so you will

get gibberish output.

char c = -80;


Can you extend String???

public final class String implements java.io.Serializable, java.lang.Comparable<java.lang.String>, java.lang.CharSequence {........}


Can you extend String???public final class String implements java.io.Serializable, java.lang.Comparable<java.lang.String>, java.lang.CharSequence {........}


Communication

CreativityProfessionalism

Experience

For better career...

Knowledge


Communication


Experience


Knowledge

If you know Java then dive into the frameworks.. If you know all of them go through scripting languages...

Know you stuff very well...

Know broad... Know deep...


Communication


Experience


Knowledge

Stay Current... Use your knowledge...

Practice... Practice... Practice...


Communication


Experience


Knowledge

Be Open-Minded...

Listen to people’s thoughts.. They’re more valuable than you think.. You CANNOT know

everything..!


Communication


Experience


Knowledge

Reject the status quo...

Don’t be a rebellion but don’t kill the rebellion inside you...


Communication


Experience


Knowledge

Take and accept the responsibility...

Make it all in a classy way...


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..!


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.


JUST DO IT




E0F

better career with java

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