Painter: Giuseppe Arcimboldo, The Potrait of Rudolf II. Arcimbold
That painting seems the reflection of modularity
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Painter: Jan van Eyck, Arnolfini Portrait
That painting could be accepted as the first selfie ever :)
Monday, December 8, 2014
Sunday, November 16, 2014
education in software engineering (I)
Before starting to teach programming to the students, coding standards should be explained at the programming related courses.
Programming looks like a brush in the painting. Patterns, designs could be changed one developer to another. In my opinion some conventions could be same in programming for each developer. When you look at the source code, the source code seems to be any poem of the E.E. Cummings, It is not a creative thinking; It could be reflection of the selfishness :)
Sample document for Java programmers:
http://www.oracle.com/technetwork/java/codeconventions-150003.pdf
Programming looks like a brush in the painting. Patterns, designs could be changed one developer to another. In my opinion some conventions could be same in programming for each developer. When you look at the source code, the source code seems to be any poem of the E.E. Cummings, It is not a creative thinking; It could be reflection of the selfishness :)
Sample document for Java programmers:
http://www.oracle.com/technetwork/java/codeconventions-150003.pdf
Wednesday, October 1, 2014
Easy ways of deployment to the Weblogic Server
Great document:
http://docs.oracle.com/cd/E23943_01/web.1111/e13702.pdf
Deployment Tools for Developers section explains the 5 ways for deployment of projects to the server automatically .
http://docs.oracle.com/cd/E23943_01/web.1111/e13702.pdf
Deployment Tools for Developers section explains the 5 ways for deployment of projects to the server automatically .
Monday, September 29, 2014
3 important things 4 everyone who wants to be a Software Engineer/Code Composer/Programmer/Coder whatever you call :)
I think not 10, 3 advices are adequate to you.
Advice 1: Read Read Read
Advice 2: Try to run code samples
Advice 3: Think how could you extend the API/LIB that you are using
Advice 1: Read Read Read
Advice 2: Try to run code samples
Advice 3: Think how could you extend the API/LIB that you are using
Once upon a time
We had software projects which could be saved into 3½-inch floppy disks.
We could copy compact discs from one to another by paying 10$ in 1999.
We could copy compact discs from one to another by paying 10$ in 1999.
Thursday, September 25, 2014
Java 8
Links:
http://cr.openjdk.java.net/~mr/se/8/java-se-8-edr-spec.html
http://ttux.net/post/java-8-new-features-release-performance-code/
Book: Java 8 Lambdas by Richard Warburton
My favorite section is Lambda-Enabled Design Patterns. It was surprise to me because I did not expect to read anything about the design patterns.
In addition:
Every code line works successfully. It is hardly seen in many books. Have you ever used the static imports? With the examples of this book, you would be :).
As everybody knows It isn't your Grandmother's Java, anymore!
Book: Java SE 8 for the Really Impatient by Cay S. Horstmann
Streams, Time API, Lambdas, Java FX and Nashorn JS Engine are explained with samples in this book.
If John Lennon would have been lived, He would have been compose a song for Java 8.
http://cr.openjdk.java.net/~mr/se/8/java-se-8-edr-spec.html
http://ttux.net/post/java-8-new-features-release-performance-code/
Book: Java 8 Lambdas by Richard Warburton
My favorite section is Lambda-Enabled Design Patterns. It was surprise to me because I did not expect to read anything about the design patterns.
In addition:
Every code line works successfully. It is hardly seen in many books. Have you ever used the static imports? With the examples of this book, you would be :).
As everybody knows It isn't your Grandmother's Java, anymore!
Book: Java SE 8 for the Really Impatient by Cay S. Horstmann
Streams, Time API, Lambdas, Java FX and Nashorn JS Engine are explained with samples in this book.
If John Lennon would have been lived, He would have been compose a song for Java 8.
Wednesday, August 6, 2014
When Your Garbage Collector tells you do not remember me ?
@7th chapter of the Java Performance (by Charlie Hunt,..)
-XX:+DisableExplicitGC and runtime results of disabling explicit garbage collection is explained.
The following link is a reference for every java developer to learn more VM options. (I think the Java Performance also should be read.)
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
-XX:+DisableExplicitGC and runtime results of disabling explicit garbage collection is explained.
The following link is a reference for every java developer to learn more VM options. (I think the Java Performance also should be read.)
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
Should configuration filenames be hardcoded?
Please imagine one standalone application which uses some xml configuration files, reads them at the startup time & runs own business rules etc.
When we want to create a new another instance for this app in the same OS
Scenario 1: If you declare file name as constant in the source code, Its imposible to run a new application with different configuration.
Scenario 2: If you declare config file name such as command line parameter or another way, It is possible to run a new application instance in the same OS.
Actually, Scenarios could be changed according to your purpose.
My note is never give configuration file names as constant/hard coded (whatsoever I think you understood me) in the source code.
When we want to create a new another instance for this app in the same OS
Scenario 1: If you declare file name as constant in the source code, Its imposible to run a new application with different configuration.
Scenario 2: If you declare config file name such as command line parameter or another way, It is possible to run a new application instance in the same OS.
Actually, Scenarios could be changed according to your purpose.
My note is never give configuration file names as constant/hard coded (whatsoever I think you understood me) in the source code.
Wednesday, July 2, 2014
Streams and Lambdas remind me this quote :)
It is impossible to disagree :)
― Bill Gates
Note: I'm wondering when he said.
“Measuring programming progress by lines of code is like measuring aircraft building progress by weight.”
― Bill Gates
Note: I'm wondering when he said.
Monday, June 2, 2014
Java Oriented Favorite Book List
Effective Java
Java Concurrency in Practice
“I sure wish I had this book ten years
ago. Some might think that I don’t need any Java books, but I need this one.”
—James Gosling, fellow
and vice president, Sun Microsystems, Inc.
Java Concurrency in Practice
Java Puzzlers
Real World Java EE Patterns
Working Effectively With Legacy Code
Refactoring: Improving the Design of Existing Code
Java Performance
Well Grounded Java Developer
Core Java and All
If you are thinking how can I learn Java the following is best one:
Too many friends of mine who are C/C++ developers started to learn the Java PL with this book ;)
what is yours?
Saturday, May 31, 2014
Tuesday, May 27, 2014
good friendship of ojdbc6 & Oracle 11g DB; so never forget to update ojdbc6.jar for java.sql.SQLData
Useful links:
Java Drivers for Oracle 11g DB
http://www.oracle.com/technetwork/database/features/jdbc/index-091264.html
Good note to the Oracle Weblogic 12 users:
http://docs.oracle.com/middleware/1212/wls/JDBCA/third_party_drivers.htm#BCFCGGFC
Java Drivers for Oracle 11g DB
http://www.oracle.com/technetwork/database/features/jdbc/index-091264.html
Good note to the Oracle Weblogic 12 users:
http://docs.oracle.com/middleware/1212/wls/JDBCA/third_party_drivers.htm#BCFCGGFC
Saturday, May 24, 2014
GUI & Framework?
When it comes to Framework for UI development, there are too many.
Frameworks can be useful or teach-full.
:) Sometimes it requires debugging in the source code and you learn what it is.
:) Sometimes developer asks this question: Why it is not working? Then asks to Google.
:) Sometimes the second search results never adequate for developer's questions and developer should read specifications etc.
Frameworks can be useful or teach-full.
:) Sometimes it requires debugging in the source code and you learn what it is.
:) Sometimes developer asks this question: Why it is not working? Then asks to Google.
:) Sometimes the second search results never adequate for developer's questions and developer should read specifications etc.
I want to "sometimes" should transform into "rarely" :) for UI development.
This opinion could be based on the reason of restarting to the GUI development after a decade :-)
This opinion could be based on the reason of restarting to the GUI development after a decade :-)
?
Wednesday, May 14, 2014
Backward Compatibility
If you are a backward compatible developer,it is possible that you can code using Oracle 9i PL\SQL {10g, 11g, 12c}or ASP - ASP.NET or Pyton, Grovy, Ruby, Spring 2.5or Spring 4.0 or JDK 1.2.1, JDK 1.4, 1.6 or so on.
This definition is my present to the SE World instead of calling such developers as Senior Developer(s) ;)
This definition is my present to the SE World instead of calling such developers as Senior Developer(s) ;)
Sunday, April 27, 2014
Good things
One of the Mozilla Sessions was about Women in Technology @FOSDEM2014, the speaker was Priyanka Nag. She shared the rates about the number of women in software industry. The Increasing rate is %11 from 2002 to 2013. (When we look at the ACM publications' increment rate for women researchers; the rate seems to be %27 in 52 years.) %11 is very interesting, because I expected to see this rate is greater than %11.
This rates are very helpful for researchers and "number of 'Women in Technology'" should be one of the research areas in sociology and psychology. In the conferences, speakers are talking about those rates but origins of the speakers are in engineering or computer science related. This sessions should be supported with anthropologists. Their opinions and studies provide big benefits for attracting girls' intention to the computer science and technology.
It is good to see the world's biggest companies support to women in technology/research, Google seems to be a pioneer :).
It is good to see the world's biggest companies support to women in technology/research, Google seems to be a pioneer :).
Big applauses are sent to the Google!
When I see this announcement, I want to share.
Author's comments in this blog are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Tuesday, April 15, 2014
Methodologies for Development by using Hibernate Framework:-)
Many different ways can be available for starting to the Hibernate.
#1 Copy Paste Developer's Approach
Search on the net & get code samples.
#2 Asking
Asking friends who are already know the Hibernate. Learn what it is. Go to Way#1
#3 Ask Google
Search on the Google. According to result, start with the videos and continue with books,blogs, pdf, ppts, forums...
#4 hibernate.org
Go to web site, learn what the library supports then go to #3
What is your favorite?
Tuesday, April 1, 2014
Sometimes :P
Sometimes; you assume it is friday, but it is wednesday.Sometimes; you assume it is wednesday, but it is friday.
Sometimes; Deadline of task ends on Monday(Soft Friday), not Friday.
Sometimes; You deploy new application to the local web server and it couldn't be deployed; you read framework's book etc etc; so ; reason of problem is because of wrong folder's name, not framework.
Lastly,
If you work abroad, most of the mistakes happened because of Country's national character set.
update:
Sometimes happiness is seeing "build successfully" words on the console :-) at the beginning of tomorrow
What is yours?
Sunday, March 23, 2014
PrimeFaces CookBook
This is the first book as I know about PrimeFaces Framework. As I saw on the web site of PrimeFaces; two new books were added to the PrimeFaces Family. :-)
I bought this book from the following link:
http://www.packtpub.com/primefaces-leading-jsf-component-suite-cookbook/book
The book starts with a very general information about Ajax and an important links for Primefaces. The authors also give their recommendations about forgetting things when preparing xhtml file content and CSS to the reader.
However this book gives you many useful samples for some of the framework's components, all of the components of this framework can be seen on the web site of the PrimeFaces.
I want to list an important web sites for developing web apps with using PrimeFaces.
http://docs.oracle.com/javaee/6/api/javax/faces/component/UIComponent.html
https://github.com/ova2/primefaces-cookbook
http://code.google.com/p/primefaces/wiki/PrimeFacesLocales
I feel that;
If this framework combined and merged with the Ibatis or similiar data mapping framework; ColdFusion developers seem to be familiar with this framework very quickly:-).
My Suggestion to universe :
It is nice to have that Netbeans or Eclipse IDE support(s) component visualization such as Drag-Drop Components to the xhtml file.
I bought this book from the following link:
http://www.packtpub.com/primefaces-leading-jsf-component-suite-cookbook/book
The book starts with a very general information about Ajax and an important links for Primefaces. The authors also give their recommendations about forgetting things when preparing xhtml file content and CSS to the reader.
However this book gives you many useful samples for some of the framework's components, all of the components of this framework can be seen on the web site of the PrimeFaces.
I want to list an important web sites for developing web apps with using PrimeFaces.
http://docs.oracle.com/javaee/6/api/javax/faces/component/UIComponent.html
https://github.com/ova2/primefaces-cookbook
http://code.google.com/p/primefaces/wiki/PrimeFacesLocales
I feel that;
If this framework combined and merged with the Ibatis or similiar data mapping framework; ColdFusion developers seem to be familiar with this framework very quickly:-).
My Suggestion to universe :
It is nice to have that Netbeans or Eclipse IDE support(s) component visualization such as Drag-Drop Components to the xhtml file.
Wednesday, March 12, 2014
Unbearable Lightness of Using ThreadSafe Objects
Being psychologically @ThreadSafe annotation may "look and feel safe" Effect at the first sight for any Java code.
If your threads use same variables for accessing/modifing purpose and you miss this issue, your threads can be confused :-).
Sometimes; you trust in web servers' architecture for writing thread safe applications. It's a good way unless your application contains cached objects that might be used by your app's transactions .
If your threads use same variables for accessing/modifing purpose and you miss this issue, your threads can be confused :-).
Sometimes; you trust in web servers' architecture for writing thread safe applications. It's a good way unless your application contains cached objects that might be used by your app's transactions .
Sunday, February 23, 2014
For Sunday Reading
10 years ago, we prefered writing our new applications in Java instead of C++/C, because it is platform independent, easy to code, no need for writing destructor (thanks to GC), libraries and performance results were very close to C++.
But today, everthing changed :) in many aspects.
Reading the following article made a flashback effect on me:
http://stevewedig.com/2014/02/17/why-and-how-i-write-java/
I'm wondering 10 years later, why we will use Java?
:-)
Image source:
Saturday, February 22, 2014
101 Design Ingredients to Solve Big Tech Problems
Until the section 5, you read 101 good ingredients and their illustrations. Each of them starts with a quote and I think, after reading each item, check it's drawing. But I think you couldn't because Drawings are at the left side of the page. Unconsciously, I started with checking cartoons for each ingredient.
Mentioned design ingredients not only valid for tech problems. From the education to social sciences, in every area, many recommendations and Author's comments could be very helpful.
Author(Eewei Chen) has complied with the own rules and keeps this book simple and very helpful.
My last note not completely related with this book, I want to share:
I don't understand why CTRL and FN keys are interchanged for some new laptops.
There is a confliction with Ingredients 2: Understand customer needs.
I think this rule is omitted for the Lxxxxx's laptops.
Friday, February 21, 2014
Java & Art & History
HISTORY
OF ART & REFLECTIONS ON HISTORY OF JAVA
After the course on Art History:
"I would rather excel others in the knowledge of what is excellent than in the extent of my powers and dominion." Alexander the Great
ART
|
Java
|
Gives messages on the sly.
|
GIVE messages via JSRs/BOOKS/BLOG/EVENTS/MAILGROUPS
|
Next year never be like present
|
Next year never be like present
|
One Trend triggers the others
|
One Vote triggers the others
|
Sources:
http://en.wikipedia.org/wiki/Gothic_art
http://en.wikipedia.org/wiki/Write_once,_run_anywhere
The Da Vinci Machine Project
a multi-language renaissance
for the Java™ Virtual Machine architecture
http://openjdk.java.net/projects/mlvm/
Modular Art - Modular Java :)
Author's comments in this blog are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Thursday, February 13, 2014
Raspberry PI without monitor
If you have wireless modem(idle) , you can install your intranet at your home.
Without using display-monitor, you can connect your raspberry by using remote connection.
Monday, February 10, 2014
The Well-Grounded Java Developer: Vital techniques of Java 7 and polyglot programming
Up-to-date Development and Java 7 enhancements are mentioned in friendly style by Ben Evans and Martijn Verburg.
Book starts with the Project Coin and it's scope. The summary sections're (at the end of the each chapter) added very good value to all chapters.
You could read exhaustive explanations of NIO.2 and DoI.
Topic, as always, must come to Modern Concurrency: The Synchronized keyword is explained truly and deeply :). After Java 5, the concurrency in Java was started to be more useful and easy for managing threads. Authors give suggestions for migration from the earlier versions of Java 5.
If you have not any idea about JVM langs, you could start to read about general concepts of Groovy, Scala and Clojure at the second half of this book.
Summary
When you read this book, you see and discover most of the stars in the Java and Java- Oriented-Development Galaxy.
Author's comments in this blog are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Sunday, February 9, 2014
JVM Web Frameworks with statistics
Last week, VirtualJUG online seminar was about JVM Web Frameworks.
When you watch to the following links, you can see how web frameworks' trends are changed in two years.
2012
http://www.slideshare.net/mraible/comparing-jvm-web-frameworks-spring-io-2012
2014
http://www.youtube.com/watch?v=ygW8fJVlDxQ
When you watch to the following links, you can see how web frameworks' trends are changed in two years.
2012
http://www.slideshare.net/mraible/comparing-jvm-web-frameworks-spring-io-2012
2014
http://www.youtube.com/watch?v=ygW8fJVlDxQ
Friday, February 7, 2014
Monday, February 3, 2014
Fosdem 2014 as I saw it
Fosdem2014 was very excellent good organization.
Saturday
I was @ %85 percent Java and %15 Mozilla Sessions.
My labels as follow:
Keep Calm and wait for Java 9
Enjoy with Charming Java 8
Simulator & Developers!
Deoptimization
Shenandoah: http://rkennke.wordpress.com/.
Java Intrinsic
Polyformic Intrincis
jogamp.org
Sunday
%20 IoT and %80 NoSQL Day for me. I expected to join Js also but room was full.
No slogan for sunday only keywords :-)
Couchbase
Cassandra
Michael Laing's session was extremely wonderful. I hope the video publishment will exist for this session.
Saturday
I was @ %85 percent Java and %15 Mozilla Sessions.
My labels as follow:
Keep Calm and wait for Java 9
Enjoy with Charming Java 8
Simulator & Developers!
Deoptimization
Shenandoah: http://rkennke.wordpress.com/.
Java Intrinsic
Polyformic Intrincis
jogamp.org
Sunday
%20 IoT and %80 NoSQL Day for me. I expected to join Js also but room was full.
No slogan for sunday only keywords :-)
Couchbase
Cassandra
Michael Laing's session was extremely wonderful. I hope the video publishment will exist for this session.
Thursday, January 23, 2014
ORACLE_HOME OC4J and ORACLE_HOME users
My dear OC4J Server for WinOS needs two environment variables:ORACLE_HOME and JAVA_HOME.
For instance:
C:\oc4j_extended_101350 for ORACLE_HOME
C:\javas\jdk1.6.0_23 for JAVA_HOME
When you make this setting, the other programs which use ORACLE_HOME could not be initialized.
After doing installation/configuration for the Environment Variables, never forget what you did :-).
For instance:
C:\oc4j_extended_101350 for ORACLE_HOME
C:\javas\jdk1.6.0_23 for JAVA_HOME
When you make this setting, the other programs which use ORACLE_HOME could not be initialized.
After doing installation/configuration for the Environment Variables, never forget what you did :-).
Tuesday, January 21, 2014
Wednesday, January 15, 2014
Suprisingly well :)
If you're dealing with Java and related Oracle products;
If you're interested in Mr. Gosling's score card for Netbeans, Java, Solaris ... :) , you can read in the link below:
http://www.javaworld.com/article/2087444/open-source-tools/james-gosling-grades-oracles-handling-of-suns-technology.html?source=IFWNLE_ifw_java_2014-01-14#tk.rss_all
I also wonder his opinion about Java FX. I really want asking to him, one day :-)
If you're interested in Mr. Gosling's score card for Netbeans, Java, Solaris ... :) , you can read in the link below:
http://www.javaworld.com/article/2087444/open-source-tools/james-gosling-grades-oracles-handling-of-suns-technology.html?source=IFWNLE_ifw_java_2014-01-14#tk.rss_all
I also wonder his opinion about Java FX. I really want asking to him, one day :-)
Wednesday, January 8, 2014
[Pretty in Radio] Jupiter Broadcasting
A good example of "Social effects of technical world to the voice streams" as follow:
http://www.jupiterbroadcasting.com/1030/jblive/
http://www.jupiterbroadcasting.com/1030/jblive/
Thursday, January 2, 2014
Quotes :)
2014 comes with the quotes, Debuging is always indispensable :-)
"Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it?"
"Before software can be reusable it first has to be usable"
- Ralph Johnson
Edsger Dijkstra