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CSS Classes & SubClasses
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I don't really use subclasses myself......can anyone give me a reason where this would be necessary?
– patricksweeney
Feb 18 '09 at 4:12
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Create a GUID in Java
...erate many millions of such values in your app and still sleep well. Using one of the other variants further reduces the possibility of collisions even closer to zero because of using "space and time", [1] MAC address or name, and [2] current date-time, as constraints.
– Basil ...
Creating an R dataframe row-by-row
I would like to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list...
Android Spinner : Avoid onItemSelected calls during initialization
... I tried this solution with my same problem, but this woks only one, eg: when I have 2 items on dropdown, it woks when I select any spinner item 1st time, when I try 2nd time its not working properly
– Waseem
Dec 7 '18 at 8:22
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What is a “static” function in C?
...e variable". This is Smalltalk terminology. This means that there is only one copy of a static data member shared by all objects of a class, while each object has its own copy of a non-static data member. So a static data member is essentially a global variable, that is a member of a class.
Non-s...
Bash tool to get nth line from a file
...o, universal syntax :). It is NOT less effective, because redirection are done with shell when forking itself, so... it is only a preference... (and yes, it is one character longer) :)
– jm666
May 27 '13 at 16:11
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EF Code First “Invalid column name 'Discriminator'” but no inheritance
...othing special about it. I have many tables in my database similar to that one, but for some reason, this table ended up with a "Discriminator" column on the EF Proxy Class.
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What exactly does a jar file contain?
...However, I got curious to what each class contained and when I try to open one of the classes in the jar file, it tells me that I need a source file.
A jar file is basically a zip file containing .class files and potentially other resources (and metadata about the jar itself). It's hard to compare...
Regular expression to match DNS hostname or IP Address?
Does anyone have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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Rolling median algorithm in C
...en perform a binary search to insert the new value and remove the existing one at each iteration.
12 Answers
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