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SCJD 5.0 Vs 6.0 certifications

kri shan
Ranch Hand

Joined: Apr 08, 2004
Posts: 1368
I do not see much difference between Java 5 and Java 6. I see big difference between Java 1.4 and Java 5. Java 6 collection almost same as Java 5. Java 6 major new feature is JAXB, Java Script support. Also I do not see much difference in Concurrent Threads.

Lots of confusion about dependency annotation in Java 6 and Spring 3. Java 6 supports @Inject, Spring 3 supports @Autowired + @Qualifier, @Resource.

Ganesan, Let me know your thoughts about Java 6 Vs Java 5. Is there a big difference between SCJD 5.0 and 6.0 certifications ?
Roel De Nijs
Bartender

Joined: Jul 19, 2004
Posts: 4926
    
  10

I have to disappoint you: SCJD is not like SCJP, so there is only a SCJD 6 certification, so no need for any comparison.

Don't know why you mention Spring in this discussion


SCJA, SCJP (1.4 | 5.0 | 6.0), SCJD
http://www.javaroe.be/
Ganesan Ponnusamy
EPractice Labs Support
Ranch Hand

Joined: Nov 07, 2005
Posts: 249
Hey Guys,

This is a very interesting discussion regarding OCMJD 6 certification.

There is no restriction to follow Java SE 5 or 6, however the application must be compatible with Java SE 6 and must not have any deprecated APIs.

It is better to use latest APIs in applicable places in your design and the code must be follow coding standards and guidelines recommended by Oracle. You can find some useful new features in Java SE 6 like Console class, NavigableMap, etc.

My suggestions:

#1 Code and Design Approach


Start with your design using APIs you know (any Java edition).
Slowly change the code according to latest Java SE 6 APIs.
For example instead of using comparator algorithm to fetch hashmap keys, we can use Java SE 6 NavigableMap to traverse keys in ascending or descending order.
Fine tune your code according to patterns and best practices.
For example instead of mixing controller logic in GUI components, we can use separate controller class to handle the same. This is called SoC(Separation Of Concerns).

#2 Design and Code Approach

Identify the classes and algorithms.
If possible use UML diagrams to express your design.
Apply patterns and APIs (Java classes, interfaces and methods).
Start developing the code.

The objective of this exam is to show your knwoledge in coding and how you are applying best practices (coding standards, patterns, threading, networking, etc). There are 'n' number of ways to solve a business problem but only few solutions are better than remaining.

Good luck for your exam preparation!


Ganesan Ponnusamy Java Certification | Test Generator | OCAJP | OCPJP | OCEJWSD | EJB Certification
OCEJPAD | SCJD | SCWCD | SCBCD | SCDJWS | OCMJEA | Web Services Certification | SCMAD
 
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subject: SCJD 5.0 Vs 6.0 certifications
 
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