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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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C/C++ Struct vs Class
... much the same; the only difference is that where access modifiers (for member variables, methods, and base classes) in classes default to private, access modifiers in structs default to public.
However, in C, a struct is just an aggregate collection of (public) data, and has no other class-like fe...
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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How to change line width in ggplot?
...dzis has the correct answer, I will expand on a few points
Aesthetics can be set or mapped within a ggplot call.
An aesthetic defined within aes(...) is mapped from the data, and a legend created.
An aesthetic may also be set to a single value, by defining it outside aes().
As far as I can tell...
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 get the seconds since epoch from the time + date output of gmtime()?
...do you do reverse gmtime() , where you put the time + date and get the number of seconds?
6 Answers
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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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