Should i close reader or inputstream ?

for buffered writer classes, i know that i have to close so that it can flush the buffer.
i wonder what's the need for closing stream which is opened for reading?
thank you

Both readers and writers should be closed when you don't need the streams anymore. Maybe it doesnt seem necessary to close a stream, but its a good programming practise to do so. If you read from a file, I think it can hold a lock on the file so you can't read it from another program until your java program exits. And if it's a socket connection, you could easily use all the allowed connections (on windows at least) if you don't close them.
The buffered writer class has a flush method you can use if you want to keep the stream open.

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Hi,
Connection conn = DriverManager.getConnection (databaseUrl, userName, userPassword);
Why should we close a connection
conn.close();
Even when i give no "close command", it works !
Thank You
Edited by: ashipj on ?? ????????, ???? ?:?? ???????

My code frequently fetches data from database, so i created a class like this
public class ConnectToDatabase
/*             public ConnectToDatabase()
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Hi George ,
Is it happening with all the PDF' or any specific one?
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Launch Reader>Navigate to Help>Repair Adobe Reader Installation
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PowerPivot: MidTier process account should have 'Full Read' permission on all associated SPWebApplications.

First time install of SharePoint 2013 (with SQL Server 2014) and Health Analyzer continuously shows the error in subject line. Note that I've 'Reanalyzed' the error and attempted to 'Repair Automatically' but no luck. I've followed the instructions
on related threads for this issue but to no avail.
Verified that the service account used by the App Pool has Full Read access on the web site as below.
First verified what App Pool is being used by the PowerPivot application:
Then verified what domain account is used as the service identity for the App Pool (under Service Accounts, but I can only upload 2 images per post). The Service Account for the SharePoint Web Services System is <mydomain>\SPServices
Then checked that the domain account has Full Read on the web site
Any help of ways I can additionally troubleshoot would be greatly appreciated...

Hi Dinesh,
Please use another domain account for PowerPivot Service Application instead of SP_farm, then grant full read permission to the content web applications associated to this service application through User Policy, then run the rule and check result again.
https://social.msdn.microsoft.com/Forums/windowsapps/en-US/e864c2ff-19ce-439a-a11f-935c6b7240a4/powerpivot-midtier-process-account-should-have-full-read-permission-on-all-associated?forum=sharepointadmin (Rajat's
suggestion)
http://whitepages.unlimitedviz.com/2012/06/the-health-analyzer-and-powerpivot-for-sharepoint/
Thanks,
Daniel Yang
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you
have feedback for TechNet Subscriber Support, contact [email protected]
Daniel Yang
TechNet Community Support

Is there a certain number of times I should install Adobe Reader on a mac before it works?

Is there a certain number of times I should install Adobe Reader on a mac before it works? Cant open any Adobe certified pdf's in any applications. Keeps telling me to install Reader for the best experience.
I've tried that on three macs, no luck. Website in general is a shambles.

No, if it doesn't work the first time, doing it again isn't likely to change anything.
The usual reason for this message is that the app is not using Reader, but the PDF needs Reader. What app is putting out the message? Can you reply (NOT BY EMAIL) with a screen shot of the message?

MenuBar should not close when menuitem is selected

MenuBar should not close when menuitem is selected so that user can check multiple menu items

PopUp a List instead.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui

EntityManagerFactory - when should be close ?

Hi ,
I am using TOPLINK and getting after some time of application running an Error :
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
This is probably because I am closing EntityManagerFactory, and than calling it again with out checking (emf.isOpen())...
OK my fault, but the main question is , should I close EntityManagerFactory after done job, and than every time when I need it again opening ?
Or leave open as a private Attribute ? :
private EntityManagerFactory emf = Persistence.createEntityManagerFactory("TestModel", new java.util.HashMap<String, String>());thank you, greetings
andrzej
Edited by: andrzej76 on Aug 30, 2010 1:30 AM

Hi ,
I am using TOPLINK and getting after some time of application running an Error :
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
This is probably because I am closing EntityManagerFactory, and than calling it again with out checking (emf.isOpen())...
OK my fault, but the main question is , should I close EntityManagerFactory after done job, and than every time when I need it again opening ?
Or leave open as a private Attribute ? :
private EntityManagerFactory emf = Persistence.createEntityManagerFactory("TestModel", new java.util.HashMap<String, String>());thank you, greetings
andrzej
Edited by: andrzej76 on Aug 30, 2010 1:30 AM

Reader and InputStream

I notice it is fairly easy to create a reader for an input stream.
Reader reader = new InputStreamReader( in );However, I don't see any easy way to create an input stream from a reader.
InputStream in = new ReaderInputStream( reader );Is there an obvious reason for this that I am missing? A reason why someone would never what to do this? Or is there an adapter class that I am just missing?
As always, thanks in advance,
R.

Well, no not really. That's a very specific example (i.e. strings). Basically, I can read content from a variety of places -- the content could come as a ByteArrayInputStream, StringInputStream, FileInputStream and so on -- I won't know which. I use a reader to work with that input stream (possibly filtering it). Then I want to take this content and put it into a database as an InputStream. I can't just use the original input stream because it may have been filtered using a reader. I want to keep these as streams because, in the case that it is a FileInputStream, I don't want to have to load the entire stream into memory as a byte-array. Furthermore, the source content could be binary or text. I want to have two wrapper methods, one that took a Reader and one that took an InputStream. These would them write that data to the database, which is why I was wondering if there was an easy way to wrap a Reader with an InputStream (I already know the reverse is easy). Sounds like I need to introduce another layer of abstraction. Maybe a Content class tree that can get/set an InputStream.

Should I close my 2 oldest CCs?

Here's my rebuild since my 1/31/2011 BK7 discharge: (Card/Date Opened/CLBest Buy Rewards MC 10/14/2011 2,000
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Barclays Rewards MC 4/10/2012 3,000 (Was $5700 CL, moved $2700 to NFL)
Cap One Rewards Visa 10/1/2014 10,000
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Discover It 7/7/2015 4,000
subtotal 30100 Store Cards:Walmart/Synchrony 2/1/2013 5000
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NRB525 wrote:
AAoA, likely is not affected too much by closing the accounts, however...You have some balances still, so if the Merrick doesn't have an AF, there's no reason to close that. You've got a basic charge flow going through there. They might close or CLD it, but why speed up the uncertainty? Let it ride. It may take them 3 years to get around to doing anything. Or never. Thanks for the advice. No, I won't take any action on Merrick, only react if they do a CLD or close. Yeah, I learned the hard way with Target Redcard dont' sockdrawer, I didn't use if for almost a year and they lowered the CL from $1k to $200 and I never could get them to raise it back even with small monthly usage. So as long as Merrick is happy with $20/mo usage I'm good with that. My Merrick card never had any fees while many of the newly issued cards have an AF, so I just suspect they're not going to be happy with no fees and no 25+% APR balances from me for very long._____________________________________________________________________________Good luck with the Best Buy change, to no AF. I don't have any experience with that, but it's something you might want to start the conversation earlier, try to PC to no AF. Keeping that account open, if you are earning rewards, keeps that oldest card active and earning. Worth the effort, if you ask me. Well, there is no 'PC', other MyFico members tell me they didn't even know an AF BB card existed. I actually did call last Oct and asked to have the AF waived The rep outright lied to me, telling me "Oh, the Mastercard always has an annual fee". I think that since HSBC issued it with an AF Citi just wants to hang on to it. It does give me 2% rewards for groceries, but the rewards can only be used as certificates to lower the price of a Best Buy purchase, and I just don't shop BB as much as I used to, I'd rather get 2% cashback rewards with Barclays Rewards MC. With no AF I'd keep it, but it's no longer worth $59/yr in fees to me to have it. _______________________________________________________________________________The 0% APR may be "hurting your score" but you are saving money. If it is in your cash flow to get it paid down, fine, but with several new accounts it is unlikely you should be looking at new cards, thus scores not matter. You do want to pay it off prior to the 0% expiration however Well, it is an agessive payment schedule to pay NFL down to 30% util by the end of the year, but then I plan to "coast" with slightly more than the min payment until the 0% nears expiration and budget to PIF before expiration. The first part of the year I'm always scrimping to sock away as much as I can into my IRA as prior year contributions by April 15.

Should PreparedStatement close before continue next PreparedStatement ?

Hi guys,
For instance, I need to use PreparedStatement for several insert and update like below:
Connection conn; // got the connection
PreparedStatement pstmt = conn.prepareStatement("insert ......");
pstmt.addBatch();
pstmt.executeBatch();
*// should I do a pstmt.close() here ?????????*
pstmt = conn.prepareStatement("update......");
pstmt.addBatch();
pstmt.executeBatch();
Thanks & Regards,
Mark

kmthien wrote:
Yes, I am using apache DBCP and using the example code here :
http://www.freshblurbs.com/jakarta-commons-dbcp-tutorial#comment-544
However, In my class, I need to connect to 2 database, 1 is local and another 1 is remote.Location doesn't matter.
I don't know how to create and initialize 2 connection pooling as when I initialize 2 connection pooling, it jus treated it as 1 only.This is of course completely different from your first question. Did you google?

Should I close First Premier now or wait:

Hello good people I have a dilemma and am wondering if I should close a couple of accounts that are really serving me no purpose. These stupid First Premier cards and a Credit One card. First Premier like so many others was my first card then Credit One then another First Premier. I also have at the time 3 Capital One cards a Barclay Rewards card and a partially secured BOA card as well as some store cards. I want to close it but do not know all of the pros and cons of doing so. I am only keeping them so my overall cl will be higher especially since I do not have any prime cards or limits over $1300 yet. I want to close them but do not want to shoot myself in the foot what should I do.???

minicook wrote:
Hello good people I have a dilemma and am wondering if I should close a couple of accounts that are really serving me no purpose. These stupid First Premier cards and a Credit One card. First Premier like so many others was my first card then Credit One then another First Premier. I also have at the time 3 Capital One cards a Barclay Rewards card and a partially secured BOA card as well as some store cards. I want to close it but do not know all of the pros and cons of doing so. I am only keeping them so my overall cl will be higher especially since I do not have any prime cards or limits over $1300 yet. I want to close them but do not want to shoot myself in the foot what should I do.???I'd close them for sure. You have much better cards that aren't costing you so much money, so you don't need those cards. Their history will continue to help you for quite some time. If you still have enough credit without them, get rid of them. Utilization shouldn't be an issue. If you will end up going over 70% total utilization every month, I'd reccomend paying the card off in the middle of the month so you're not appearing maxed out. The only other thing to do would be to PIF before statement cut on all but one card and leave 1-9% unpaid until the statement is created, but you should only do that when you're applying for new credit. Overall, they aren't helping you enough to justify their cost.

Issue SLFI should open in read only or display mode

If we open an issue in CRM_DNO_MONITOR we can choose whether the issue
should be opened in change mode or read mode.
We can do this by means of >Extra > Settings and then choosing for
Display or Change in the General tab.
This way we can read issues as a default setting, this way the issue is
not locked !! Only if we want to change it we set it to change mode and
continue with the issue.
However if we do the same using DSWP or SOLMAN_ISSUE_MGMT the issue is
always opened in change mode, and results in a lot of locks in the
system. How can this be changed, is there some kind of customizing for
this or menu option.
The handling of issue does not seem to be consistent for the different
methods in handling them.
Who has the same problem with locking?
Who has a working bypass w/o manual switching from change to display?
Thanks in advance,
Peter Hendriksen

Thanks for the reply.
Anything is welcome at this point.
And yes, I did try both through PowerShell and through the Unlocker and the behavior is pretty much the same. If the item is checked in, there is no trace that it is locked, if I Check it Out (the only thing I can really do with it) it shows as "LongTerm"
but then throws the same exception
Unlocking...
Error occurred. Details:
Save Conflict
Your changes conflict with those made concurrently by another user. If you want your changes to be applied, click Back in your Web browser, refresh the page, and resubmit your changes.
   at Microsoft.SharePoint.SPFile.CheckIn(String comment, SPCheckinType checkInType, Boolean bIsMigrate, SPUser modifiedBy)
   at Microsoft.SharePoint.SPFile.CheckIn(String comment)
   at ForceSPItemUnlock.UnlockerForm.UnlockButton_Click(Object sender, EventArgs e)
The method UpdateItemCheckoutExpiration sounds insteresting though.
"The more difficult something became, the more rewardant it was in the end"
http://ftduarte.blogspot.com

I cant shut down my macprobook its showing error that safari should be close first but the safari not open

i have tried to close my macbook pro .but when i ma going to shutdown its showing me error message by saying safari need to be close but the safari is already closed its not geeting shutdown just i can make my mac in sleep mode

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Should i close reader or inputstream ?

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