My short presentation @ Java Tech Day Athens, Feb2008. Some basic tips, links and resources for Junior Java developers

1. A developer at work
tips and tricks for junior developers
by P.Apostolopoulos
jhug.gr Administrator
javapapo@mac.com
Thursday, February 21, 2008 1

2. Intro!
This small presentation aims the junior
developers.
Senior developers please stay..and
relax!
Junior developers please check out the
links
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3. a good developer...
Thursday, February 21, 2008 3

4. a good developer...
Good education (yes...but)
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5. a good developer...
Good education (yes...but)
Passion.Eager to learn new things and
adapt.
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6. a good developer...
Good education (yes...but)
Passion.Eager to learn new things and
adapt.
Hard work!
Thursday, February 21, 2008 3

7. a good developer...
Good education (yes...but)
Passion.Eager to learn new things and
adapt.
Hard work!
.... knows how to use a search engine!!
Thursday, February 21, 2008 3

8. a good developer...
Good education (yes...but)
Passion.Eager to learn new things and
adapt.
Hard work!
.... knows how to use a search engine!!
Thursday, February 21, 2008 3

9. Define passion!
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10. Define passion!
There is no way you can define or specify
passion in the context of a Java
developer .
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11. Define passion!
There is no way you can define or specify
passion in the context of a Java
developer .
The force is strong in you.....
Thursday, February 21, 2008 4

12. Define passion!
There is no way you can define or specify
passion in the context of a Java
developer .
The force is strong in you.....
Tip for managers: Always try to
encourage junior developers!!!
Thursday, February 21, 2008 4

13. Define passion!
There is no way you can define or specify
passion in the context of a Java
developer .
The force is strong in you.....
Tip for managers: Always try to
encourage junior developers!!!
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14. Learn new things
stay up to date
The Java ecosystem evolves
Read Books - buy books(tip for
managers)!
Read Java related news sites
Try to get involved - Java User
Groups!
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15. My top 5 Java related publishers
Sun Press : http://www.sun.com/books/
OReilly : www.oreilly.com/pub/topic/java
Manning :www.manning.com/catalog/java/
Addison Wesley (Safari) : www.safari.awprofessional.com/
browse?category=itbooks.prog.java
Deitel : www.deitel.com
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16. My favorite Java news site
java.dzone.com (the digg of developers!)
java.net
javalobby.com
theserverside.com
www.infoq.com
sdnshare.sun.com/
snippets.dzone.com/tag/java
javaworld.com
Thursday, February 21, 2008 7

17. My favorite Java news site
java.dzone.com (the digg of developers!)
java.net
javalobby.com
theserverside.com
www.infoq.com
sdnshare.sun.com/
snippets.dzone.com/tag/java
javaworld.com
Thursday, February 21, 2008 7

18. Other useful resources
The Java tutorial - MUST READ!!!
java.sun.com/docs/books/tutorial
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19. Other useful resources
JDKSearch.com
Online Search of the JDK documentation
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20. Other useful resources
Parleys.com - A beJUG initiative!
Online talks from various Java
Conferences
Changes the way Java developers are
educated!
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21. try to use search engines!
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22. try to use search engines!
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23. Make use of various e-services
Forums
forum.java.sun.com/index.jspa
Blogs (even the father of Java is a blogger!)
blogs.sun.com
www.jroller.com
Social Bookmarking Sites
del.icio.us
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24. Make use of various e-services
Tutorial sites
www.javapassion.com
www.roseindia.net
www.jguru.com
courses.coreservlets.com
javaboutique.internet.com/tutorials/
NewsLetters
developers.sun.com/newsletters
www.javaspecialists.eu
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25. Tools for a junior Java developer
1. IDEs
2. make build tools
3. Software Quality tools
4. Testing
5. Versioning systems
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26. Java IDE’s
Netbeans : www.netbeans.org
Eclipse: www.eclipse.org
IDEA IntelliJ:
www.jetbrains.com/idea/
JDeveloper
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27. Why i love
Simplicity
Excellent for junior Java developers.
Out of the box support for many J2EE
technologies.
Introduced a new era on Swing GUI
building with Matisse GUI Builder.
Thursday, February 21, 2008 16

28. Why i love
Simplicity
Excellent for junior Java developers.
Out of the box support for many J2EE
technologies.
Introduced a new era on Swing GUI
building with Matisse GUI Builder.
Thursday, February 21, 2008 16

29. Make - Build tools in Java
Every junior developer must be familiar with
the basics of make tools.
Usually junior developers are not introduced
to such tools early in their career.
That is bad...proper and efficient building,
packaging or dependency management of a
Java Application is something that needs time
to master.
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30. make build tools -
1. Apache Ant - ant.apache.org/
Recommended Books:
Java Development with Ant - www.manning.com/hatcher/
Ant The Definite Guide -www.oreilly.com/catalog/anttdg2/index.html
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31. make build tools - Maven, Ivy
2. Apache Maven - ‘software project management and comprehension tool’
maven.apache.org/
3. Apache Ivy - ‘dependency manager’
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32. Software Quality Tools
Some developers still ignore SQE tools
Some developers still ignore that such
tools are integrated to their IDE via
plugins.
SQE Tools...increases the quality of your
code base.
Makes your life and your manager’s life
easier.
Thursday, February 21, 2008 20

33. Software Quality Tools
FindBugs - findbugs.sourceforge.net/
PMD - pmd.sourceforge.net/
CheckStyle - checkstyle.sourceforge.net/
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34. Software Quality Tools
Do you want them integrated with your
IDE(e.g Netbeans)? no..prob!
SQE project - sqe.dev.java.net/
Or you may check my simple guide for
Netbeans 6.0
http://urlb.org/lgm2
Thursday, February 21, 2008 22

35. You should Unit test!!!
Still lots of development teams ignore
unit testing during their development
life-cycle.
Even senior developers sometimes are
not familiar with the basics of unit
testing!!!
That is bad...bad...bad...bad...bad!!!
Thursday, February 21, 2008 23

36. Unit Testing for beginners
JUnit -www.junit.org/
Book : JUnit in Action -/www.manning.com/massol/
Test NG - testng.org/doc/
JUnit knowledge is considered
mandatory for everyone!
Encourage developers to unit test!!!
Thursday, February 21, 2008 24

37. What about Versioning Systems
The most common problem with junior
developers - proper use!
There still even ‘senior’ developers who
cannot properly update- merge their
code with the repository.
Proper use and knowledge of your
versioning system saves time.
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38. What about Versioning Systems
Try to focus on the versioning system you
are using - learn its potential!
CVS - www.nongnu.org/cvs/
SVN - subversion.tigris.org/
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39. think before you shoot!
Think twice before you commit!
Update before you commit!
Don’t commit 10 minutes before you
leave work - very very bad!
Make one batch commit (lots of files)
not 10000 single commits!
Committing just to prove you did
something DOES not help!
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40. one last thing to remember!
Everybody makes mistakes - everyday
That is ok, no harm done
Unless it is the day before a release!!!!
Thank you for your time!
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