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How to free memory in Java?
... free memory in Java, similar to C's free() function? Or is setting the object to null and relying on GC the only option?
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...login for a forum, and need to hash the password client side in javascript before sending it on to the server. I'm having trouble figuring out which SHA-256 implementation I can actually trust. I was expecting there to be some kind of authoritative script that everyone used, but I'm finding loads of...
How can I create tests in Android Studio?
Just downloaded Android Studio which is based off of the Intellij Idea.
12 Answers
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Programmatically fire button click event?
Is there a way to programmatically fire a button click event? I have a button placed there in an UIView, and in a particular scenario i want to click the button via code, not manually as a user. Is it possible in iOS development? Please provide your suggestions and guide me how to do that.
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What to add for the update portion in ConcurrentDictionary AddOrUpdate
...sing Dictionary to use ConcurrentDictionary. I have reviewed some examples but I am still having trouble implementing the AddOrUpdate function. This is the original code:
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How to avoid having class data shared among instances?
What I want is this behavior:
7 Answers
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How do I determine whether my calculation of pi is accurate?
...t gives the digits of pi sequentially. I tried the Taylor series method, but it proved to converge extremely slowly (when I compared my result with the online values after some time). Anyway, I am trying better algorithms.
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Are there any disadvantages to always using nvarchar(MAX)?
... than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level)
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How to add “active” class to Html.ActionLink in ASP.NET MVC
I'm trying to add an"active" class to my bootstrap navbar in MVC, but the following doesn't show the active class when written like this:
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How to limit the maximum value of a numeric field in a Django model?
Django has various numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a ...