Rikesh Desai

thanks Stephen,

have already cleared OCPJP and i scored 100% in Collections and Generics!

but nice advice though.

yep. 2.

thank you Christophe!
really appreciate your help!!!

so then, is it better to study for SCJD then?

thanks for your suggestions..

what is the pattern of this exam?
is it all objectives? just like scjp?

and what next after this?
is SCWCD or SCBCD required for doing SCJD?

Hi All,

Which book is the best to prepare for this exam?

thank you so much all!

Thanks a lot Sumit!

and is there a way to know where I went wrong?
I have no idea what were the mistakes i did.

and can we give the SCJD directly? or would we need SCWCD/SCBCD certification as a pre-requisite for that?

Raja Narasimha wrote:Hi, Why I am getting compile warning as given in the comments.public class P199_Exception26_return_Ask { public static int main(String[] args) { if (true) { //line 1 System.out.println("-- 1 --"); return 1; //line 2 } return 1; //Why this is Dead Code instead of Unreachable Code ?? } }

Because of these two lines..

thanks to all!

Hi All,

I cleared OCPJP today with 95%.
Thanks to everyone in this forum.
Special thanks to Devaka for the awesome ExamLab and Bert & Kathy for all the K&B stuff - the book and the mock exams. (Btw, i was not able to access the Bonus master exam. Some error was coming when i was trying to download it)


What happens next?
I had read somewhere that I will be receiving an email from Oracle. How many days does that take?

Is there anything else that I should be looking forward to? When do we get the certificate?

No, it still doesnt work..

got very confused with this part of generics... somebody please help!!!

got the point.
thanks guys for all the help!

hi,

I have been trying to code different flavours of generics :

import java.util.*; class A{} class B<Z extends A> extends A{} class C extends B{} public class Generics{ public <Z extends A> B<Z extends A> func(A t) { return new B(); } public static void main(String arr[]){ List <? super A> list = new ArrayList<A>(); list.add(new A()); list.add(new B()); } }

I am unable to understand why am I getting a compiler error though I have kept the signature of the generic declaration same..

Compiler error
\Practice Programs\Generics.java:7: > expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: '(' expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: <identifier> expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: invalid method declaration; return type required public <Z extends A> B<Z extends A> func(A t) ^ 4 errors Tool completed with exit code 1

Any pointers to explaining all the rules of generics would be very helpful.

overridding methods should not throw checked exceptions wider than the overridden methods.
here the exception thrown by the overridding method is the super-class of the exception thrown by the overrridden method.
this is not allowed.

hi,

I have been trying to code different flavours of generics :

import java.util.*; class A{} class B<Z extends A> extends A{} class C extends B{} public class Generics{ public <Z extends A> B<Z extends A> func(A t) { return new B(); } public static void main(String arr[]){ List <? super A> list = new ArrayList<A>(); list.add(new A()); list.add(new B()); } }

I am unable to understand why am I getting a compiler error though I have kept the signature of the generic declaration same..

Compiler error
\Practice Programs\Generics.java:7: > expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: '(' expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: <identifier> expected public <Z extends A> B<Z extends A> func(A t) ^ \Practice Programs\Generics.java:7: invalid method declaration; return type required public <Z extends A> B<Z extends A> func(A t) ^ 4 errors Tool completed with exit code 1

Any pointers to explaining all the rules of generics would be very helpful.