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| ObjectAid UML Explorer, class diagram. |
Friday, February 13, 2015
ObjectAid UML Explorer for Eclipse
ObjectAid UML Explored for Eclipse is an Eclipse plugin to show the Java source code and libraries in live UML class and sequence diagrams, that automatically update as your code changes.
Monday, December 15, 2014
IntelliJ shortcuts
I'm using IDE IntelliJ for the first time. Until now, my favorite IDE is Eclipse. Why am I trying IntelliJ? Because everyone that uses it says that it is much better than Eclipse. So, I'm trying it to see for my self.
First of all, I've downloaded the IntelliJ Community Edition, and after running it and setting up my Project, I'm faced with a new challenge: so, what shortcuts should I use?
IntelliJ welcomes me with a few shortcut:
- Search Everywhere with Double Shift
- Open a file by name with Ctr + Shift + N
- Open Recent Files with Ctrl + E
- Open Naviagtion Bar with Alt + Home
- Drag and Drop file(s) here from Explorer
(I' ll adding useful shortcuts as long as I discover them)
Which IDE do you prefer? Eclipse? IntelliJ? Some other? Why?
Monday, November 24, 2014
Wiki Markup language in Atlassian Crucible
Atlassian Crucible is a collaborative peer code review tool, where you can leave comments about reviews created based on some commited code.
It allows the development teams to catch major defects, improve code architecture, and discuss desired improvements, without the need for meetings. With FishEye, it lets you view the contents of your Source Code Management (SCM) repositories in your web browser.
And, it supports integration with Jira, which is a very important thing about these collaborative tools. Integration is the key for a better handling.
The Crucible documentation, the FishEye documentation and the Jira documentation can be found at the Atlassian Documentation page.
Did you know that you can use Wiki Markup in Crucible, just like for incorporating some code block in the comments? Check out this Crucible Help page about the Wiki Markup and learn how it can be used.
Tuesday, October 7, 2014
How to create an ico file?
How to create an ico/png file?
It's very easy! Just follow these tutorial steps.
That's it! No need to download any software to make the ico file!
Tips:
If the purpose of the ico file is to be used as a favicon, export it with the 16x16 option selected.
If you want to change the icon on a folder, export it with the 32x32 option.
As an alternative, you can use the http://iconverticons.com/ online tool.
It's very easy! Just follow these tutorial steps.
- Go to http://converticon.com
- Upload your gif, jpeg or png file and press the "Export" button.
- Select the Export options, like sizes and type of the file to be exported: ico or png.
- Press the "Save As" button.
That's it! No need to download any software to make the ico file!
 |
| How to create an ico |
If the purpose of the ico file is to be used as a favicon, export it with the 16x16 option selected.
If you want to change the icon on a folder, export it with the 32x32 option.
As an alternative, you can use the http://iconverticons.com/ online tool.
Thursday, July 10, 2014
I'm an OCE JEE6 1Z0-895 Certified!
I've passed the exam for 1Z0-895 Java Platform, Enterprise Edition 6 Enterprise JavaBeans Developer Certified Expert with 83%!
My training materials were:
1. Enterprise JavaBeans 3.1 (the most recommended book, ignore JPA chapters, this is the Bible from where to learn all the exam topics, but it's incomplete concerning the deepness of needed knowledge - complete the knowledge from the EJB 3.1 specification!)
Andrew Lee Rubinger, Bill Burke
O'Reilly Media; Sixth Edition edition (September 24, 2010)
2. EJB 3 in Action (EJB 3.0, ignore JPA chapters, I don't remember what I learned from this book that I didn't learned with the O'Reilly book. Be aware that in version 3.0 there are no singletons, so this book does not mention it)
Debu Panda, Reza Rahman, Derek Lane
Manning Publications Co.; 1st Edition
3. Head First EJB (EJB 2.0, just for the basic concepts, like the EJB Roles and how to understand the "equals" between EJBs - ignore EJB 2.0 specific stuff)
Kathy Sierra, Bert Bates
O'Reilly
4. OCP JavaEE 6 EJB Developer Study Notes by Ivan A Krizsan (very complete! Read it! Learned the structure of an .ear and .jar from here and also the Exceptions tree structure for distinguishing between Application Exceptions and System Exceptions)
5. Frits Walraven OCPEJBD 6 EJB3.1 (a very good short study notes! I became aware of the "equals" questions between EJBs from here. If you know all the topics mentioned here, then you should be prepared for the exam)
6. JSR-000318 Enterprise JavaBeansTM 3.1 Final Release (The EJB 3.1 specification: it has all the needed information but it is really hard to read, but it must be read to complement the knowledge)
7. Interceptors 1.1 (The EJB 3.1 Interceptors specification: It's very quick to read!)
8. Enthuware 1Z0-895 exams (some questions are very similar to the real exam, really good software for practice! I was getting around 80% in this software and I got 83% in the real exam!)
After all this study, if you are passing in Enthuware exams, then you should pass on the real exam!
Good luck!
My training materials were:
1. Enterprise JavaBeans 3.1 (the most recommended book, ignore JPA chapters, this is the Bible from where to learn all the exam topics, but it's incomplete concerning the deepness of needed knowledge - complete the knowledge from the EJB 3.1 specification!)
Andrew Lee Rubinger, Bill Burke
O'Reilly Media; Sixth Edition edition (September 24, 2010)
2. EJB 3 in Action (EJB 3.0, ignore JPA chapters, I don't remember what I learned from this book that I didn't learned with the O'Reilly book. Be aware that in version 3.0 there are no singletons, so this book does not mention it)
Debu Panda, Reza Rahman, Derek Lane
Manning Publications Co.; 1st Edition
3. Head First EJB (EJB 2.0, just for the basic concepts, like the EJB Roles and how to understand the "equals" between EJBs - ignore EJB 2.0 specific stuff)
Kathy Sierra, Bert Bates
O'Reilly
4. OCP JavaEE 6 EJB Developer Study Notes by Ivan A Krizsan (very complete! Read it! Learned the structure of an .ear and .jar from here and also the Exceptions tree structure for distinguishing between Application Exceptions and System Exceptions)
5. Frits Walraven OCPEJBD 6 EJB3.1 (a very good short study notes! I became aware of the "equals" questions between EJBs from here. If you know all the topics mentioned here, then you should be prepared for the exam)
6. JSR-000318 Enterprise JavaBeansTM 3.1 Final Release (The EJB 3.1 specification: it has all the needed information but it is really hard to read, but it must be read to complement the knowledge)
7. Interceptors 1.1 (The EJB 3.1 Interceptors specification: It's very quick to read!)
8. Enthuware 1Z0-895 exams (some questions are very similar to the real exam, really good software for practice! I was getting around 80% in this software and I got 83% in the real exam!)
After all this study, if you are passing in Enthuware exams, then you should pass on the real exam!
Good luck!
Sunday, June 22, 2014
EJB 3.1: Transactions and Exceptions
It confuses me a bit how transactions and exceptions get together in the EJB specification.
It always depends on the transaction type (CMT or BMT), the type of the bean (Session or MDB), and the type of the exception (Application or System Exception).
The O'Reilly Enterprise JavaBeans 3.1 book summarizes this into some tables. I hope that this can help you like it has helped me about how to think about the transactions and exceptions.
For Session and Entity Beans:
For MDBs:
It always depends on the transaction type (CMT or BMT), the type of the bean (Session or MDB), and the type of the exception (Application or System Exception).
The O'Reilly Enterprise JavaBeans 3.1 book summarizes this into some tables. I hope that this can help you like it has helped me about how to think about the transactions and exceptions.
For Session and Entity Beans:
For MDBs:
Chef Programming Language
I love all these esoteric programming languages!
Chef is a programming language where your programs look like a recipe!
You can have measures like cups and tablespoons, use liquid ingredients (output as unicode characters) while dry or unspecified will output numerics, to be put on a mixing bowl (which acts like a stack) or a baking dish!
The recipe starts with a title of the dish, which is a short description of what the program does.
Next we have the ingredients, which represent the variable declarations. Next, the method, that contains the real recipe instructions, like "take ingredient from refrigerator" which means to read a numeric from an input.
Check on DangerMouse for the language specification.
Here is the "Hello World Souffle" example:
Chef is a programming language where your programs look like a recipe!
You can have measures like cups and tablespoons, use liquid ingredients (output as unicode characters) while dry or unspecified will output numerics, to be put on a mixing bowl (which acts like a stack) or a baking dish!
The recipe starts with a title of the dish, which is a short description of what the program does.
Next we have the ingredients, which represent the variable declarations. Next, the method, that contains the real recipe instructions, like "take ingredient from refrigerator" which means to read a numeric from an input.
Check on DangerMouse for the language specification.
Here is the "Hello World Souffle" example:
Hello World Souffle.
This recipe prints the immortal words "Hello world!", in a basically brute force way. It also makes a lot of food for one person.
Ingredients.
72 g haricot beans
101 eggs
108 g lard
111 cups oil
32 zucchinis
119 ml water
114 g red salmon
100 g dijon mustard
33 potatoes
Method.
Put potatoes into the mixing bowl. Put dijon mustard into the mixing bowl. Put lard into the mixing bowl. Put red salmon into the mixing bowl. Put oil into the mixing bowl. Put water into the mixing bowl. Put zucchinis into the mixing bowl. Put oil into the mixing bowl. Put lard into the mixing bowl. Put lard into the mixing bowl. Put eggs into the mixing bowl. Put haricot beans into the mixing bowl. Liquefy contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish.
Serves 1.
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