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How good is Java's UUID.randomUUID?

I know that randomized UUIDs have a very, very, very low probability for collision in theory, but I am wondering, in practice, how good Java's randomUUID() is in terms of not having collision? Does anybody have any experience to share? ...
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css 'pointer-events' property alternative for IE

I have a drop down navigation menu in which some of the title should not navigate to other page when clicked(these title open a drop down menu when clicked on) while others should navigate (these dont have dropdown and navigate directly).However, both types have href defined to them ...
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How to configure git push to automatically set upstream without -u?

I want git push origin to automatically set the upstream reference when I push a locally-created branch for the first time. ...
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What is the purpose of the EBP frame pointer register?

I'm a beginner in assembly language and have noticed that the x86 code emitted by compilers usually keeps the frame pointer around even in release/optimized mode when it could use the EBP register for something else. ...
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How can I handle time zones in my webapp?

... storing timestamps is simple: Store them in UTC. As for displaying them, it would make sense to take the device's timezone setting and use that as the current timezone. That said, there should be a timezone dropdown next to the "time input" box, which defaults to the device's current timezone, so ...
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How to return dictionary keys as a list in Python?

In Python 2.7 , I could get dictionary keys , values , or items as a list: 8 Answers ...
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Big-O summary for Java Collections Framework implementations? [closed]

I may be teaching a "Java crash-course" soon. While it is probably safe to assume that the audience members will know Big-O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is. ...
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Netty vs Apache MINA

They both provide roughly the same functionality. Which one should I choose to develop my high-performance TCP server? What are the pros & cons? ...
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How to add property to a class dynamically?

... a property to a class dynamically. But that's the catch: you have to add it to the class. >>> class Foo(object): ... pass ... >>> foo = Foo() >>> foo.a = 3 >>> Foo.b = property(lambda self: self.a + 1) >>> foo.b 4 A property is actually a simple...
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How can I wait for set of asynchronous callback functions?

... You haven't been very specific with your code, so I'll make up a scenario. Let's say you have 10 ajax calls and you want to accumulate the results from those 10 ajax calls and then when they have all completed you want to do something. You can do it like ...