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Different between parseInt() and valueOf() in java?

...ger.valueOf(Integer.parseInt("123")) Now, if what you want is the object and not the primitive, then using valueOf(String) may be more attractive than making a new object out of parseInt(String) because the former is consistently present across Integer, Long, Double, etc. ...
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PHP Function with Optional Parameters

... an array" suggestion - take a look at Walf's answer to a similar question and the more in-depth example in the same thread – DJDave Mar 16 '16 at 13:07 ...
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How to set focus on input field?

...s on a predefined <input> inside this Modal. Define a directive and have it $watch a property/trigger so it knows when to focus the element: Name: <input type="text" focus-me="shouldBeOpen"> app.directive('focusMe', ['$timeout', '$parse', function ($timeout, $parse) { retur...
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int a[] = {1,2,}; Weird comma allowed. Any particular reason?

... It makes it easier to generate source code, and also to write code which can be easily extended at a later date. Consider what's required to add an extra entry to: int a[] = { 1, 2, 3 }; ... you have to add the comma to the existing line and add a new line....
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Django: Get list of model fields?

....AutoField: id>, <django.db.models.fields.DateField: created>... and Organisation._meta.get_fields() (<ManyToOneRel: crm.activity>, <django.db.models.fields.AutoField: id>, <django.db.models.fields.DateField: created>... 2) From instance from posts.model import BlogPost ...
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Create folder with batch but only if it doesn't already exist

... exist. Note that this existence test will return true only if VTS exists and is a directory. If it is not there, or is there as a file, the mkdir command will run, and should cause an error. You might want to check for whether VTS exists as a file as well. ...
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Python, compute list difference

...vation is important Roman Bodnarchuk may have a better approach. For speed and pure set-like behavior this one seems better. – Bryan P Feb 13 '15 at 23:01 8 ...
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Dump Mongo Collection into JSON format

...) which can dump a collection. This utility uses the native libmongoclient and is likely the fastest method. mongoexport -d <database> -c <collection_name> Also helpful: -o: write the output to file, otherwise standard output is used (docs) --jsonArray: generates a valid json docume...
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I need to pop up and trash away a “middle” commit in my master branch. How can I do it?

... the history is not rewritten, you maintain a clear record of the mistake, and other repos will accept the push. Here's a good way to erase: git rebase -i <commit>^ That takes you to the commit just before the one you want to remove. The interactive editor will show you a list of all the comm...
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Validate a username and password against Active Directory?

How can I validate a username and password against Active Directory? I simply want to check if a username and password are correct. ...