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Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
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Flatten an irregular list of lists
...een covered before ( here , here , here , here ), but as far as I know, all solutions, except for one, fail on a list like this:
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Getting reference to the top-most view/window in iOS application
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Usually that will give you the top view, but there's no guarantee that it's visible to the user. It could be off the screen, have an alpha of 0.0, or could be have size of 0x0 for example.
It could also be that the keyWindow ha...
log messages appearing twice with Python Logging
I'm using Python logging, and for some reason, all of my messages are appearing twice.
8 Answers
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Why should I not wrap every block in “try”-“catch”?
...f a method can throw an exception then it is reckless not to protect this call with a meaningful try block.
16 Answers
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Not equal != operator on NULL
...dicates for such situations.
This behavior is not specific to SQL Server. All standards-compliant SQL dialects work the same way.
Note: To compare if your value is not null, you use IS NOT NULL, while to compare with not null value, you use <> 'YOUR_VALUE'. I can't say if my value equals or ...
Should I prefer pointers or references in member data?
... be null. This can be an advantage, but if the code ever needs changing to allow rebinding or for the member to be null, all uses of the member need to change
unlike pointer members, references can't easily be replaced by smart pointers or iterators as refactoring might require
Whenever a reference ...
Is there a float input type in HTML5?
...>
(I'd also set min=0 if it can only be positive)
If you'd prefer to allow any number of decimal places, you can use step="any" (though for currencies, I'd recommend sticking to 0.01). In Chrome & Firefox, the stepper buttons will increment / decrement by 1 when using any. (thanks to Micha...
git - merge conflict when local is deleted but file exists in remote
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You should resolve the conflicts as you see fit. If the file really is supposed to be removed, and you will be publishing that change to origin, remove it again:
git rm path/to/file
If the file should in fact be tracked still, add it (the version in the work tree will be the version f...
How does push notification technology work on Android?
...itiated by the Google Play application. That's why Google Play must be installed on the device for making Google Cloud Messaging (GCM) (formerly Android Cloud to Device Messaging Service - C2DM) work.
When this TCP client socket receives some message, the message contains information such as the pa...