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How do I create a unique ID in Java? [duplicate]

...Adamski: this method will only create unique values as long as you don't restart the JVM, have only 1 JVM running and as long as the counter doesn't overflow. All those assumptions can easily be broken. UUID.randomUUID() is actually more reliable in those situations. – Joachim ...
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Count how many files in directory PHP

...ually adding anything to /path/to/dir would fail it, because first / means starting from root dir. If there were path/to/dir, then yes, __DIR__ . '/path/to/dir' would help (in this case you must use / after __DIR__ – Justinas Feb 22 '19 at 14:30 ...
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How to open a second activity on click of button in android app

...{ Intent intent = new Intent(FromActivity.this, ToActivity.class); startActivity(intent); } And the most important thing: don't forget to define your activity in manifest.xml <activity> android:name=".ToActivity" android:label="@string/app_name"> </acti...
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Delete everything in a MongoDB database

...lete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points for giving both a MongoDB console method and a MongoDB Ruby driver method. ...
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PHP Warning: PHP Startup: Unable to load dynamic library

...rt. For this type of error, I'd assume that php would crash right from the start. Instead I get my page, but my logger is logging this error. Weird huh? – B T Jun 10 '11 at 5:52 ...
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Java or Python for Natural Language Processing [closed]

...ML tools: Machine Learning and Natural Language Processing What are good starting points for someone interested in natural language processing? Natural language processing Natural Language Processing in Java (NLP) Is there a good natural language processing library Simple Natural Language Processi...
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Why does Git say my master branch is “already up to date” even though it is not?

...s to move however you like. The fetch command takes care of the ones that start with remotes/. It's conventional to match "yours" with "theirs" (so if they have a remotes/origin/mauve you'd name yours mauve too), but you can type in "theirs" whenever you want to name/see commits you got "from them...
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MVC (Laravel) where to add logic

...example: A short while ago, I developed something like the Google Forms. I started with a CustomFormService and ended up with CustomFormService, CustomFormRender, CustomFieldService, CustomFieldRender, CustomAnswerService and CustomAnswerRender. Why? Because it made sense to me. If you work with a t...
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How to calculate number of days between two given dates?

... from datetime import datetime start_date = datetime.strptime('8/18/2008', "%m/%d/%Y") end_date = datetime.strptime('9/26/2008', "%m/%d/%Y") print abs((end_date-start_date).days) ...
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Two divs, one fixed width, the other, the rest

... (and there is space) it is just cut off on the right (where the right div starts). How can I make the text wrap in the left div? – Guy Dec 31 '13 at 12:37 1 ...