Deepali Verma

Hi Ranchers,

I've passed OCPJWCD 5 on 19 Aug 2013 with 97%.

I would like to thank Bryan, Kathy and Bert for the Book- Head First Servlets and JSP, Second Edition.

Thank you everyone for sharing your experience and skills in this forum.

Congratulations!!! Prajwal

Thank you for sharing your insights and approach for the preparation of OCEJWCD 6(1z0-899)

All The Best for your next exams!!!

Prajwal Shetty wrote:Congratulations Deepali

I second you on the TWO MINUTE DRILLS

Best Of Luck For Your Next Exam !!!

Thank you so much Prajwal

You scored 100% last year!!!
Cheers!!!

Thank You Divya !!

Mahtab Alam wrote:I think i understand generics very well but some questions in Devaka`s exam lab are out of my understanding.
I am having some problem with Generics ,basically the generic assignments with ? super class_name.

Hi,
Generic assignments are really confusing. But very easy after practice

In that question it was all about Return Type,
public abstract class A<K extends Number> { public abstract A<K> method1(); public abstract <K>K method4(); //public abstract K <K> method2();//Error: The type K is not generic;it cannot be parametrized with arguments <K> //public abstract <K> method3(); //Error //- The type parameter K is hiding the type K //- Return type for the method is missing

I am sharing my notes. Copy paste and try them out. "class dog extends animal"
public void adds4(List<? super dog> alist4){ alist4.add(new dog()); // *** With super dog... Adding new dog() allowed //alist4.add(new animal());/Error //alist4.add(new Object());/Error //alist4.add(new Integer(1));/Error public void adds6(List<? super animal> alist6){ alist6.add(new dog()); // Allowed *** alist6.add(new animal());//Allowed *** //alist6.add(new Object());/Error //alist6.add(new Integer(1));/Error public void adds3(List<? extends dog> alist3){ //alist3.add(new dog()); // *** Error : Extends Dog... adding new dog() not allowed //alist3.add(new animal());//Error //alist3.add(new Object());/Error //alist3.add(new Integer(1));/Error public void adds5(List<? extends animal> alist5){ //alist5.add(new dog()); // *** Error : Extends animal... Still new dog() not allowed //alist5.add(new animal());//Error //alist5.add(new Object());/Error //alist5.add(new Integer(1));/Error }

*** Adding Element allowed with SUPER only
List<> ---> Everything
List<dog> ----> dog
OR List<? super dog> ---->dog

List<> ----->Everything
List<animal> ----->dog n animal
OR List<? super animal> -----> dog n animal

You need not to mug up , type few codes it looks tricky in starting but its very simple. I have few more codes related with extends and super.

@ Waleed- Thanks !! Many Congratulation to you too !!

Thanks Paul and Koilraj

Hi Ranchers!

I've passed my OCPJP6 on 4 FEB 2013 with 98%.

Thank you Kathy and Bert for the book - SCJP Sun Certified Programmer for Java 6 Study Guide. The book covers all aspects of the exam objectives. Lastly, during the preparation, I coded extensively to test compilation, exception, code logic etc.
Thank you everyone for sharing your skills and experience in this forum.

Advice:
- Study the K&B CAREFULLY.
- If something is hard to understand, try to write MANY samples, compile and run them, then analyze the results carefully.
- Practice dump questions.

Thanks once again all of you guys.

Cheers!