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No appenders could be found for logger(log4j)?
...valid.
That guide will give you some information about how to use loggers and appenders.
Just to get you going you have two simple approaches you can take.
First one is to just add this line to your main method:
BasicConfigurator.configure();
Second approach is to add this standard log4j.pro...
Why are empty strings returned in split() results?
... back the original string.
If the empty strings were not there, the first and last '/' would be missing after the join()
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Can I restore deleted files (undo a `git clean -fdx`)?
I was following the instructions on making github pages , and forgot to move down into my git sub directory. As a result, I just nuked an entire directory of documents with git clean -fdx .
Is there any way I can undo this terrible mistake?
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Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
... between getContext() , getApplicationContext() , getBaseContext() , and " this "?
8 Answers
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How do I put an 'if clause' in an SQL string?
...rder_status = 'COMPLETED'
WHERE purchaseOrder_ID = '@purchaseOrder_ID' and
not exists (SELECT *
FROM itemsOrdered WHERE purchaseOrder_ID = '@purchaseOrdered_ID' AND status = 'PENDING'
)
However, I might guess that you are looping at a higher...
git - pulling from specific branch
I have cloned a git repository to my dev server and then switched to the dev branch but now I can't do a git pull to update the branch.
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Xcode: failed to get the task for process
...bution certificate, which disallows this behavior (you wouldn't want some random fool hooking into your app after downloading it from the app store). Compile with the development certificate instead. You can change this in the building settings under code signing.
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what is reverse() in Django
...e sure what this is but it is used together with HttpResponseRedirect. How and when is this reverse() supposed to be used?
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How to change an Android app's name?
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Yes you can. By changing the android:label field in your application node in AndroidManifest.xml.
Note: If you have added a Splash Screen and added
<intent-filter>
<action android:name="android.intent.action.MAIN" />
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PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
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See REASSIGN OWNED command
Note: As @trygvis mentions in the answer below, the REASSIGN OWNED command is available since at least version 8.2, and is a much easier method.
Since you're changing the ownership for all tables, you likely want view...