Question regarding classes taken

Hi all.
Does anyone know where I can get proof that I took a class from Sun? I had taken a course, Fundamentals of the Java Programming Language, Java SE 6 (SL-110-SE6) (or whatever its equivalent was) sometimes between 2006 and 2008 (I know, I should KNOW what year - I think it might have been in 2006 but I can't remember). I lost all paperwork associated with this course in a flood earlier this year, so I wanted to know if there were some way I could get some proof that I've taken this course. Any help would be appreciated.
-George Kulz
Senior Java Programmer
Information Services
Memorial Hospital of Rhode Island
Address: 111 Brewster Street, Pawtucket, RI 02860
Phone: (401) 729-3259
Email: [email protected]

Wouldnt your training provider have a record of that? I suppose Sun might have a record of that but I took the Sun SL-314-EE5 Web Component Development with Servlet and JSP Technology course through QA training in London and I wouldnt expect SUN to have any record of that.... Although they may do.
I dont think I have the paper certificate I was issued with at the end of the course, but as no exam is required for these courses I dont really think it matters all that much as its just evidence that you attended a 4-5 day course.
Hopefully your ability in Java should be enough that it wouldnt even be questioned. If I had to prove that I really had my degree or A-Level courses and I didnt have the certificate I would probably be more worried!

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Hi all,
I have a question regarding placing classes into packages. Actually I am writing cache feature which caches the results which were evaluated previously. Since it is a cache, I don't want to expose it outside because it is only for internal purpose. I have 10 classes related to this cache feature. All of them are used by cache manager (the manager class which manages cache) only. So I thought it would make sense if I keep all the classes into a separate package.
But the problem I have is, since the cache related classes are not exposed outside so I can't make them public. If they are not public I can't access them in the other packages of my code. I can't either make it public or private. Can someone suggest a solution for my problem?

haki2 wrote:
But the problem I have is, since the cache related classes are not exposed outside so I can't make them public. If they are not public I can't access them in the other packages of my code.Well, you shouldn't access them in your non-cache code.
As far as I understand, the only class that other code needs to access is the cache manager. That one must be public. All other classes can be package-private (a.k.a default access). This way they can access each other and the cache manager can access them, but other code can't.

Question regarding MM and FI integration

Hi Experts
I have a question regarding MM and FI integration
Is the transaction Key in OMJJ is same as OBYC transaction key?
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Hi,
We recently upgraded to Fios Quation 150Mbps/65 plan. We are not getting the advertised speeds (we only get like 5mbps upload) so verizon is sending a tech to switch the ONT connection from coax to ethernet.
I have 2 questions regarding this new setup:
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Right next to the wall where the ONT sits, theres's a basement office where we have a PC that connects to the Fios system via an Actiontect MoCa adapter (ECB2500C) which I assume derives it internet connection from the Fios Actiontec router which sits upstairs in the living room.
Again, with the Coax about to be disabled next Friday in favor of ethernet connection from the ONT, I assume this PC will be left without internet because of the lack of internet signal in the coax? Is this correct?
Question 2.5 If my above assumption is correct, since this office is right on the other side of the wall where the ONT sits outside the house, would it be possible to run an ethernet wire through the wall that connects straight from the ONT to an ethernet switch inside the office, from which I would derive a connection for this basement PC (properly firewalled of course) and then, from said switch, continue running the ethernet wire that would ultimately reach the Actiontec Fios router upstairs from which the rest of the house derives it's internet? and would this setup affect in any way the propper functioning of the cable boxes in the house?
I'd appreciate your input and any help you can provide so I can have a ballpark idea of what to tell the Fios guy to do when he comes on Friday.
Cheers.
Solved!
Go to Solution.

It's not valid to have two devices connected to the ONT, PC and VZ Router. Must be a single device. The ONT locks onto the MAC Address of the first device it sees. Since you have TV you should have the VZ router as the internet facing router.
Other options:
1. Have the VZ Router located next to the PC in the basement and then use Wireless for all other PC's.
2. Have the VZ Router located next to the PC in the basement but run one wire upstairs and connect a switch where other PCs and devices can connect via a wire.
Hope that helps.

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Hi All,
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2012 full operating system ?

Hi CyrAz,
Thank you for the reply. Now if your's and my understanding is the same, Then look at the below what happened.
I created a Alert monitor targeting a Windows Server 2012 class in my custom management pack which
is not dependent on the Windows server 2012 management pack, But how was i successfully able to create them when the dependency is not there at all, If our understanding is same, then there must be an Error thrown while creating the monitor its self right
? But how was SCOM able to create that ?
Look at the below screenshot.
I was able to create a monitor targeting Windows server 2012 Full operating system and create a alert on the custom management pack which is not at all dependent
on the Windows server 2012 Sealed MP.
Look at the dependency of the management pack where i do not have the Windows server 2012 management as my custom management is not dependent on that.
Then how come this is possible ?

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Id appreciate very much if you could comment on the questions below.
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If the condition is equal to the filter restriction, then the condition can be removed.
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Question:
a.) What do I enter here? For parameter VAR_NAME I use the variable name, but what do I use for parameter VAR_VALUE? Also the variable name?
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This makes the architecture more complex.
Thanks a lot in advance for your appreciated answers!
Kind regards, Harjan


Marc,
Some additional questions regarding locking.
I encounter that the dataset that is locked depends on the restrictions made in the 'Characteristic Restrictions'-part of the query.
Restrictions in the 'Default Values'-part are not taken into account. In that case all data records of the characteristic are locked.
Q1: Is that correct?
To give an example: Assume you restrict customer on hierarchy node in Default Values. If you want people to plan concurrently this is not possible since all customers are locked then. When customer restriction is moved to Char Restr the system only locks the specific cutomer hier node and people can plan concurrently.
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Then question regarding locking of data for functions:
Assume you use the BEx Analyzer and use the query as data_provider_filter for your planning function. You use restricted keyfigures with char Version. First column contains amount for version 1 and second column contains amount for version 2.
In the Char Restrictions you've restricted version to values '1' and '2'.
When executing the inputready query version 1 and 2 are locked. (due to the selection in Char Restr)
But when executing the planning function all versions are locked (*)
Q4: True?
Kind regards, Harjan

Questions regarding new functionalities in EhP 4 - Reporting Financials 2

Dear Forum,
in a project we would like to use some new functionalities from Reporting Financials 2 - ie. Datasource 0FI_AA_20 for Depreciation and Amortization loading to BI for following years as this can not be done by old extractor.
We are know looking for reliable information about impact and changes that are made in ERP if we switch on the functionality Reporting Financials 2 via SFW5? Will old extracors work nevertheless? Will all reports in ERP work without problems? Is there any impact on business processes? Or is this just additional functionality which will not affect current implementation?
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Thanks, regards
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Edited by: Lars Hermanns on Jun 2, 2010 10:29 AM
Edited by: Lars Hermanns on Jun 2, 2010 10:29 AM

Marc,
Some additional questions regarding locking.
I encounter that the dataset that is locked depends on the restrictions made in the 'Characteristic Restrictions'-part of the query.
Restrictions in the 'Default Values'-part are not taken into account. In that case all data records of the characteristic are locked.
Q1: Is that correct?
To give an example: Assume you restrict customer on hierarchy node in Default Values. If you want people to plan concurrently this is not possible since all customers are locked then. When customer restriction is moved to Char Restr the system only locks the specific cutomer hier node and people can plan concurrently.
Q2: What about variables use in restricted keyfigures like variable for fy/period? Is only this fy/period locked then?
Q3: We'd like to lock on a navigational attribute. The nav attr is put as a variable in the filter of the Characteristic Restrictions. Does the system then only lock this selection for the nav.attr? Or do I have to change my locking settings in RSPLSE?
Then question regarding locking of data for functions:
Assume you use the BEx Analyzer and use the query as data_provider_filter for your planning function. You use restricted keyfigures with char Version. First column contains amount for version 1 and second column contains amount for version 2.
In the Char Restrictions you've restricted version to values '1' and '2'.
When executing the inputready query version 1 and 2 are locked. (due to the selection in Char Restr)
But when executing the planning function all versions are locked (*)
Q4: True?
Kind regards, Harjan

Question regarding Inheritance.Please HELP

A question regarding Inheritance
Look at the following code:
class Tree{}
class Pine extends Tree{}
class Oak extends Tree{}
public class Forest{
public static void main(String args[]){
Tree tree = new Pine();
if( tree instanceof Pine )
System.out.println( "Pine" );
if( tree instanceof Tree )
System.out.println( "Tree" );
if( tree instanceof Oak )
System.out.println( "Oak" );
else System.out.println( "Oops" );
}If I run this,I get the output of
Pine
Oak
Oops
My question is:
How can Tree be an instance of Pine.? Instead Pine is an instance of Tree isnt it?

The "instanceof" operator checks whether an object is an instance of a class. The object you have is an instance of the class Pine because you created it with "new Pine()," and "instanceof" only confirms this fact: "yes, it's a pine."
If you changed "new Pine()" to "new Tree()" or "new Oak()" you would get different output because then the object you create is not an instance of Pine anymore.
If you wonder about the variable type, it doesn't matter, you could have written "Object tree = new Pine()" and get the same result.

Question regarding Inrefaces:Please GUIDE.

A question regarding INTERFACES.
'Each interface definition constitutes a new type.
As a result, a reference to any object instantiated from any class
that implements a given interface can be treated as the type of
the interface'.
So :
interface I{}
class A implements I{
}Now,class A is of type I.Right?
Now,if class A implements more than one interface,then what
is the actual type of A?
For example:
interface I{}
interface R{}
class B implements I,R{
}What is now B's type? I or R? or both?

>
The class (that implements the interface) actually
defines the behavior, and the interface just serves as
a contract for that behaviorYes.
- a view.Call it that if you want, but it being "a view" doesn't take away is-a-ness.
IMHO, the 'types' are the classes, which qualify for
the 'is a' relationshipAs yawmark points out, your use of "type" is not consistent with the JLS. Regardless of how you want to define type, the face it that it makes sense to say "A LinkedList is a List" and "A String is (a) Comparable" etc. Additionally, the way I've always seen the is-a relationship described, and the way that makes the most sense to me, is that "A is-a B" means "A can be used where B is expected." In this respect, superclasses and implemented interfaces are no different.
(which is what the words "extends" and "implements"
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"Foo implements Bar" in plain English doesn't suggest much to me. Maybe that Foo provides the implementation specified in Bar, and therefore can be used where a Bar is required, which is exactly what implements means in Java and which, as far as I can tell, is the core of what the is-a relationship is supposed to be about in general OO.

Question regarding ExternalizableLite

One question regarding extending ExternalizableLite
If I have a class A which extends ExternalizableLite as
class A {
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If I also make class B extends ExternalizableLite, will that help on serialize/deserialize class A? Or it not going to help at all?
Regards,
Chen

Hi Chen,
if B is an ExternalizableLite implementor, then ExternalizableHelper.writeObject() will delegate to ExternalizableHelper.writeExternalizableLite(). I.e., it will write out a byte indicating that it is an externalizable lite, then writes out the classname and then delegates to your class B's writeExternal method. The improvement is the difference between the class B writeExternal method implementation and the Java serialization of the same class.
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This allows you to spare the class name plus one byte in the serialized form of your A class.
Best regards,
Robert

Questions regarding Disk I/O

Hey there, I have some questions regarding disk i/o and I'm fairly new to Java.
I've got an organized 500MB file and a table like structure (represented by an array) that tells me sections (bytes) within the file. With this I'm currently retrieving blocks of data using the following approach:
// Assume id is just some arbitary int that represents an identifier.
String f = "/scratch/torum/collection.jdx";
int startByte = bytemap[id-1];
int endByte = bytemap[id];
try {
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 in.skipBytes(startByte);
 int position = collectionSize - in.available();
 // Keep looping until the end of the block.
 while(position <= endByte) {
 line = in.readLine();
 // some pocessing here
 String[]entry = line.split(" ");
 String docid = entry[1];
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 position = collectionSize - in.available();
 } catch(IOException e) {
 e.printStackTrace();
 }This code does EXACTLY what I want it to do but with one complication. It isn't fast enough. I see that using BufferedReader is the choice after reading:
http://java.sun.com/developer/technicalArticles/Programming/PerfTuning/
I would love to use this Class but BufferedReader doesn't have the function, "skipBytes(), which is vital to achieve what I'm trying to do. I'm also aware that I shouldn't really be using the readLine() function of the DataInputStream Class.
So could anyone suggest improvements to this code?
Thanks
null

Okay I've got some results and turns out DataInputStream is faster...
EDIT: I was wrong. RandomAccessFile becomes a bit faster according to my test code when the block size to read is large.
So I guess I could write two routines in my program, RAF for when the block size is larger than an arbitary value and FileInputStream for small blocks.
Here is the code:
public void useRandomAccess() {
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 long start = 1385592, end = 1489808;
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 int tf = Integer.parseInt(entry[2]);
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 long start = 0;
 long end = 0;
 start = System.currentTimeMillis();
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 end = System.currentTimeMillis();
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Random: 345ms
Stream: 235ms
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Question regarding Command pattern

Hi!
I have a question regarding the Command pattern:
//Invoker as defined in GOF Design Patterns
public class SomeServer {
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}The concrete command which implements the Command needs a reference to Receiver in order to execute it's operation but how is the concrete command best configured? Should I send Receiver along with the request
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thing?
Regards
/Fredrik

#!/bin/bash
DATE=$(date '+%y-%m-%d')
if find | grep -q $DATE ; then
echo "OK - Backup files found"
exit 0
else
echo "Critical - No Backups found today!"
exit 2
fi
should work too and it's a bit shorter.
Please remember to mark the thread as solved.

Few questions regarding Oracle Scorecard and strategy management.

Hi,
I have following questions regarding Oracle Scorecard and strategy management:
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2. can we keep log of KPIs, store them, keep report of feedback/action taken on that?
3. Does Scorecard and strategy management have ability to retain history on feedback and log of
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bump.

A question regarding deallocating arrays

hello. just to check if i learned arrays correct..
for example i have an array 'anArray[ ]'
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is this correct?
it's quite confusing. does it apply to multidimensional arrays? for example anArray[ ] [ ] = null???

A question regarding eclipse.
No offence meant.People are not usually offended by Eclipse.
I have added a jar file to the current project in its
build path.
This executes the concerned class file which is in
the jar file.
If I remove the jar file from the build path and run
the project,
it still executes that class file.
I tried building a clean project and running it,but
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or you have confused your problem statement.
Why don't you create a new project and add everything except that class/jar (whichever yu mean)

A question regarding Java project in ECLIPSE IDE

A question regarding eclipse.
No offence meant.
I have added a jar file to the current project in its build path.
This executes the concerned class file which is in the jar file.
If I remove the jar file from the build path and run the project,
it still executes that class file.
I tried building a clean project and running it,but still executes the jar file and the class.
Any idea why this is happening?

A question regarding eclipse.
No offence meant.People are not usually offended by Eclipse.
I have added a jar file to the current project in its
build path.
This executes the concerned class file which is in
the jar file.
If I remove the jar file from the build path and run
the project,
it still executes that class file.
I tried building a clean project and running it,but
still executes the jar file and the class.
Any idea why this is happening?You have that class file elsewhere
or you have confused your problem statement.
Why don't you create a new project and add everything except that class/jar (whichever yu mean)

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