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What is the difference between a symbolic link and a hard link?
Recently I was asked this during a job interview. I was honest and said I knew how a symbolic link behaves and how to create one, but do not understand the use of a hard link and how it differs from a symbolic one.
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How to mock a final class with mockito
...f these types. As this works differently to our current mechanism and this one has different limitations and as we want to gather experience and user feedback, this feature had to be explicitly activated to be available ; it can be done via the mockito extension mechanism by creating the file src/te...
Multiple arguments vs. options object
... had to look up the function to figure out what parameters it takes
If someone ever tries to strangle you while screaming "ARRRRRG!"
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Why are static variables considered evil?
...t given a choice between two otherwise equally valid designs, the testable one is superior. Being testable certainly doesn't equate to being well designed, but I've rarely come across untestable good designs, and I think they're sufficiently rare that I have no problem in making testability a genera...
What is Java String interning?
...ist of names where 'john' appears 1000 times, by interning you ensure only one 'john' is actually allocated memory.
This can be useful to reduce memory requirements of your program. But be aware that the cache is maintained by JVM in permanent memory pool which is usually limited in size compared t...
Can I create a One-Time-Use Function in a Script or Stored Procedure?
In SQL Server 2005, is there a concept of a one-time-use, or local function declared inside of a SQL script or Stored Procedure? I'd like to abstract away some complexity in a script I'm writing, but it would require being able to declare a function.
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Classes residing in App_Code is not accessible
...d to allow this? I have made it work in previous projects, but not in this one, somehow.
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What does “&” at the end of a linux command mean?
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In addition, you can use the "&" sign to run many processes through one (1) ssh connections in order to to keep minimum number of terminals. For example, I have one process that listens for messages in order to extract files, the second process listens for messages in order to upload files: ...
Get timezone from DateTime
Does the .Net DateTime contain information about time zone where it was created?
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What happens to global and static variables in a shared library when it is dynamically linked?
...nless you use some inter-process communication library or extensions).
The One Definition Rule (ODR) still applies, meaning that you can only have one definition of the global variable visible at link-time (static or dynamic linking).
So, the key issue here is really visibility.
In all cases, sta...