My short presentation @ Java Tech Day Athens, Feb2008. Some basic tips, links and resources for Junior Java developers
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Javadev At Work2008
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
Thursday, February 21, 2008 2
5. a good developer...
Good education (yes...but)
Passion.Eager to learn new things and
adapt.
Thursday, February 21, 2008 3
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
10. Define passion!
There is no way you can define or specify
passion in the context of a Java
developer .
Thursday, February 21, 2008 4
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!!!
Thursday, February 21, 2008 4
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!
Thursday, February 21, 2008 5
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
Thursday, February 21, 2008 6
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
Thursday, February 21, 2008 8
19. Other useful resources
JDKSearch.com
Online Search of the JDK documentation
Thursday, February 21, 2008 9
20. Other useful resources
Parleys.com - A beJUG initiative!
Online talks from various Java
Conferences
Changes the way Java developers are
educated!
Thursday, February 21, 2008 10
21. try to use search engines!
Thursday, February 21, 2008 11
22. try to use search engines!
Thursday, February 21, 2008 11
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
Thursday, February 21, 2008 12
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
Thursday, February 21, 2008 13
25. Tools for a junior Java developer
1. IDEs
2. make build tools
3. Software Quality tools
4. Testing
5. Versioning systems
Thursday, February 21, 2008 14
26. Java IDE’s
Netbeans : www.netbeans.org
Eclipse: www.eclipse.org
IDEA IntelliJ:
www.jetbrains.com/idea/
JDeveloper
Thursday, February 21, 2008 15
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.
Thursday, February 21, 2008 17
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
Thursday, February 21, 2008 18
31. make build tools - Maven, Ivy
2. Apache Maven - ‘software project management and comprehension tool’
maven.apache.org/
3. Apache Ivy - ‘dependency manager’
Thursday, February 21, 2008 19
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
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.
Thursday, February 21, 2008 25
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/
Thursday, February 21, 2008 26
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!
Thursday, February 21, 2008 27
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!
Thursday, February 21, 2008 28