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Archive for the ‘J2ee’ Category

I would like to thank this Forum for the precious information I got from it as well as to Mikalai Zaikin as well as to Java Ranchers..

I would like to share my experience and materials which I have used for SCEA preparation..Firstly, I am having 2 yr 10 months experience. Those who are having exp less than 4 yrs ,I would suggest them to finish these certifications (SCWCD, SCBCD & SCDJWS for J2EE 5) , though it’s not mandatory, but it helps you to gain more knowledge. If you are 5 + exp, then its easy to clear this exam..Exam contains only scenario based questions and we need to select an appropriate answer. It’s quite difficult for me, to choose those answers 😥 . Don’t go for most powerful and new ones instead read the question carefully and address the requirements. For example, sometime two-tier architecture will be better than 3-tier, DAO over JPA, RMI over web services (it depends on our requirements )..
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Preparation tips & links: (for 1st round interview) –Basic stuffsss …. More to add on… All d best!!!

*) Basic flow architecture of java – Read abt JVM, why we need JRE, Where we will be using JIT, CLASSLOADER workflow..

*) We should be good in core java concepts.. I would prefer to read Kathy serria (SCJP book).. Its not mandatory to take this SCJP exam, but its better to read this book atleast once and be familiar with all the topic.. Concentrate more on Threads,Generics & Collections (especially HashMap implementation).. I would urge you to code as much as possible.. Understand HashCode concept, implement a simple HashMap (what will happen if collision occurs in HashMap) , LoadFactor, rehash ,running time complexity(O(1)) .. Please check the source code of HashMap.java

*) Annotation – how to create a simple annotation (@Retention(RetentionPolicy.RUNTIME)) (more…)

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