Comments for Nikos' Java blog

Comment on Hibernate dalam 10 menit by udin

udin — Sun, 27 Dec 2009 07:13:03 +0000

panduan dan langkah yg kurang jelas

Comment on JDBC dalam 10 menit by ucup

ucup — Sun, 27 Dec 2009 06:15:44 +0000

makasih Om…… gara” JDBC….tiap malem ga bisa tdur.. karna ga bisa” ngonect kan……….maklum msh awam thanx’s …tutorna. ..

Comment on SCJP 6 Mock exam for I/O by Nicole L.

Nicole L. — Fri, 25 Dec 2009 13:22:14 +0000

the answer of Question nr 17 is correct, because IOException should be thrown

Comment on Free SCWCD Mock Exam for JSPs by ok

ok — Tue, 22 Dec 2009 12:21:52 +0000

input.jsp only has a link of tag named a.it is not a form ,so ,can’t submit.

Comment on SCJP 6 Mock exam for I/O by Neha

Neha — Tue, 22 Dec 2009 11:58:29 +0000

ques 17 answer should be 1 it creates a file named fun.log on my computer which contains hello!

Comment on SCJP Mock exam for Collections by Azat

Azat — Sat, 19 Dec 2009 19:45:34 +0000

Thanks,

I only tried first 40. But at question 25, I tested,
answer should be “c” not “b”.

Comment on SCJP 6 Mock exam for I/O by Azat

Azat — Fri, 18 Dec 2009 11:56:01 +0000

Hello,

first of all thank you very much for a nicely prepared tests.
I have a proposal on some questions (may be it is a just typo error).

at Free SCJP Mock exam for I/O section:

Question 2:
Your answer is “b” – false,
but I tested it should be “c” – NullPointerException at second line.

Question 11:
Your answer is “c” – FileInputStream,
but it should be “d” – FileOutputStream

Thank you again for your answer in advance.
S. Azat

Comment on SCJP Mock exam for Overriding & Overloading by Anand

Anand — Thu, 17 Dec 2009 09:06:49 +0000

Very helpful in final stages of preparation.Questions cover numerous possibilities. Thanks.

Comment on SCJP 6 Mock exam for I/O by me

me — Tue, 15 Dec 2009 20:31:05 +0000

I was shocked when I got through first couple questions – shocked that I did not know such simple/basic things. Later, was much better!

Thanks. Good one.

Comment on SCJP 6 Mock exam for I/O by Tauseef Raza

Tauseef Raza — Sat, 05 Dec 2009 19:20:42 +0000

Answer of question # 1 is NullPointerException at third line…

Comment on Java-XML in 3 minutes by jimmyzhang

jimmyzhang — Wed, 02 Dec 2009 01:57:41 +0000

you may also want to check out vtd-xml, the latest and most advanced xml processing model vtd-xml

Comment on SCJP 6 Mock exam for I/O by Leandro

Leandro — Tue, 01 Dec 2009 21:47:39 +0000

47 has the same problem as 46

Comment on SCJP 6 Mock exam for I/O by Leandro

Leandro — Tue, 01 Dec 2009 21:43:37 +0000

There’s an error in question 46. The output is: A B C and the return of toString() method, eg: Child@a62fc3

Comment on SCJP Mock exam for Overriding & Overloading by principecr

principecr — Wed, 25 Nov 2009 09:36:48 +0000

Wordefull cases . Thank you

Comment on SCJP Mock exam for new Java 6 features by Nikos

Nikos — Tue, 17 Nov 2009 18:48:37 +0000

Hi lakshmi, you should not use the NetBeans IDE to run the questions for java.io.Console. You should run them from the command prompt of your operating system.

Comment on SCJP Mock exam for new Java 6 features by lakshmi

lakshmi — Fri, 13 Nov 2009 08:34:40 +0000

Hi,

Good job Niko. Nice material has given to us.

Have doubt in question no 26,27 and 28. I am using NetBeans 6.7 IDE tool. I ran it .All these 3 programs giving NullPointerException.

And the 20 was compiled successfully but doent print anything.

Last but not least, How should we give a name to question no 21 and 24?

Please let me know if anyone known about them as soon as poaaible.

Comment on SCJP 6 Mock exam for Threads by Cris

Cris — Mon, 09 Nov 2009 19:37:53 +0000

First of all – good job.

Look again at question 8 – I believe 3 methods (not 2) are static there.

Comment on SCJP 6 Mock exam for I/O by S

Mon, 09 Nov 2009 04:18:09 +0000

Thanx for the questions, keep up good work

Comment on Free SCWCD Mock Exam for EL by priya

priya — Thu, 05 Nov 2009 02:04:59 +0000

Thanks for the questions.Quite interesting.

Comment on Free SCWCD Mock Exam for Servlets by Ankit Garg

Ankit Garg — Fri, 30 Oct 2009 07:15:08 +0000

priya, the RequestDispatcher.forward method throws ServletException but the HttpServletResponse.sendRedirect doesn’t throw ServletException…

Comment on Free SCWCD Mock Exam for Servlets by Ankit Garg

Ankit Garg — Fri, 30 Oct 2009 06:20:49 +0000

Answer of question 45 also seems wrong to me…

Comment on Free SCWCD Mock Exam for Servlets by Ankit Garg

Ankit Garg — Fri, 30 Oct 2009 06:18:18 +0000

I think the answer of question 50 is wrong.

In question 62, the question would be more exact if there was a URL representing the requested servlet which performs the redirect as the path in sendRedirect is relative.

Similarly in question 63, I would recommend that you wrote that the application is deployed on a context path (whatever it may be) as the answer would be wrong if the application was deployed on root or default context path…

Comment on SCJP Mock exam for Generics by The true about the question 72??

The true about the question 72?? — Fri, 23 Oct 2009 23:55:39 +0000

Hi everyone

In question 72 the correct answer is b), i don’t know the exact reason; I supposed is a name colide because i tried to compile and the result is:

non-static class String cannot be referenced from a static context

Thanks for your time

Comment on SCJP Mock exam for Collections by Alex Serna

Alex Serna — Thu, 22 Oct 2009 14:24:34 +0000

Thank you. Excellent Job!!!

Comment on JBoss integration with JDeveloper 11g by MEDO

MEDO — Sun, 18 Oct 2009 11:27:17 +0000

please if you please
send me any VIDEO of jdeveloper 11g
Thanks yours

Comment on Wicket: Full guide for NetBeans 6.5 by dana

dana — Sat, 17 Oct 2009 18:33:57 +0000

@Vic – it should work for Netbeans, with the specifications, not in Eclipse!

Comment on Free SCWCD Mock Exam for Custom Tags by Vishwa

Vishwa — Wed, 14 Oct 2009 09:49:36 +0000

Hi ! An excellent quiz. Makes familiarizing with code very easy!

Thanks!

*qn 37: isnt it a valid TLD declaration? is optional rite?

Comment on Free SCWCD Mock Exam for Servlets by priya

priya — Thu, 10 Sep 2009 17:11:53 +0000

Hello…….

I get confused in qu.29 and qu.30. In 29 code gets fails as it require that servlet should throw ServletException then is that not needed for qu.30..
please help me…

Comment on SCJP Mock exam for Overriding & Overloading by Pranjal

Pranjal — Thu, 10 Sep 2009 12:49:37 +0000

thanks for the good & free practice material:-)

Comment on JDBC in 10 minutes by Emeric

Emeric — Tue, 08 Sep 2009 20:21:53 +0000

@Nikos
Excellent, it was just clear and complete. Thanks.
Every architect / senior developer shoud know this, without jpa / spring or apache of course. Because it helps to know how and when to use them.

Comment on Easy JDBC using Spring by Colin Sampaleanu

Colin Sampaleanu — Fri, 04 Sep 2009 16:25:28 +0000

Niko,

With respect to showing the basic usage model of JdbcTemplate, your sample is fine. However, you really should not be managing the DataSource yourself in this fashion, but rather injecting it into your DAO class. Then it can be a Spring managed object, and the user of the DAO can plug in whatever connection pool DataSource variant (e.g. Apache Commons DBCP) makes sense…

Colin

Comment on Free SCWCD Mock Exam for Custom Tags by Bindu

Bindu — Thu, 03 Sep 2009 09:00:57 +0000

Qn 68 : returning SKIP_PAGE from doStartTag()
evaluates the body?
How so?
Please explain?
And make corrections in question 52 and 53.You are defining a method with in a method in them.

Comment on Free SCWCD Mock Exam for JSPs by Bindu

Bindu — Tue, 01 Sep 2009 03:08:49 +0000

I could not understand why we get null in second page in question 46.
If the attribute is in session scope as in question 47 we don’t get null.

Comment on JDBC in 10 minutes by Spencer K

Spencer K — Mon, 31 Aug 2009 20:37:41 +0000

Spring JDBC is also quite usable even when not using the dependency injection associated with Spring.

Comment on JDBC in 10 minutes by Tony

Tony — Mon, 31 Aug 2009 20:05:44 +0000

I would highly recommend against using raw JDBC anymore. Check out Apache DBUtils and DBCP if you like staying close to JDBC. Also check out the JPA.

Comment on JDBC in 10 minutes by rip747

rip747 — Mon, 31 Aug 2009 17:43:47 +0000

i just vomited in my mouth. why would you want to write all that code when there are numerous orms for java out there?

Comment on Easy JDBC using Spring by Twitter Trackbacks for Easy JDBC using Spring « Nikos’ Java blog [nikojava.wordpress.com] on Topsy.com

Mon, 31 Aug 2009 03:24:14 +0000

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Comment on Free SCWCD Mock Exam for Servlets by Daisy

Daisy — Sun, 30 Aug 2009 10:50:27 +0000

Amit,
you mean qn 70?
Yes. When session is invalidated then the attribute removed is called.
Here attribute removed is not called when the statement: request.getSession().removeAttribute(“planet”);
is executed but when the session is invalidated.

Comment on Easy JDBC using Spring by JDBC in 10 minutes « Nikos’ Java blog

JDBC in 10 minutes « Nikos’ Java blog — Sat, 29 Aug 2009 11:56:46 +0000

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Comment on MySQL in 3 minutes by Easy JDBC using Spring « Nikos’ Java blog

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Comment on SCJP 6 Mock exam for I/O by Ashok

Ashok — Sat, 08 Aug 2009 21:01:18 +0000

Good one !! Hats off to you Niko !!

Comment on Free SCJP Mock exams by Alex

Alex — Sat, 08 Aug 2009 06:43:58 +0000

Here is another good site for scjp exam preparation: http://scjptest.com Hope it helps.

Comment on Hibernate in 10 minutes by Nuno

Nuno — Wed, 01 Jul 2009 23:52:04 +0000

I really appreciate your blog.
This is really useful and there should be more articles like this one on other subjects, ideally one single place where we could find similar summaries for other technologies.

Well done!

Comment on MySQL in 3 minutes by Tagz | "MySQL in 3 minutes « Nikos’ Java blog" | Comments

Tagz | "MySQL in 3 minutes « Nikos’ Java blog" | Comments — Sat, 16 May 2009 16:57:53 +0000

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Comment on Custom Tags Tutorial by Free SCWCD Mock exam for Custom Tags « Nikos’ Java blog

Free SCWCD Mock exam for Custom Tags « Nikos’ Java blog — Sat, 09 May 2009 17:31:09 +0000

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Comment on SCJP Mock exam for Collections by Pedro Parra

Pedro Parra — Sun, 26 Apr 2009 17:36:42 +0000

The answer for the question 25 should be c, -12 11 0 145

Comment on Hibernate in 10 minutes by maneesh kumar sinha

maneesh kumar sinha — Sat, 25 Apr 2009 18:13:37 +0000

Very nice tutorial.
One question
Can we handle auto increment (mysql) using annotation without declaring primary key as auto increment.? In other words what could be replacement /equivalent for in my entity calss

Comment on Free SCJP Mock exams by Mock Exam Link « SCJP 6 Notes

Mock Exam Link « SCJP 6 Notes — Sun, 19 Apr 2009 17:38:30 +0000

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Comment on SCJP Mock exam for Generics by unexpected compilation error with Generics : java cms

unexpected compilation error with Generics : java cms — Wed, 15 Apr 2009 04:11:19 +0000

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