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Is it better practice to use String.format over string Concatenation in Java?
Is there a perceptible difference between using String.format and String concatenation in Java?
14 Answers
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strdup() - what does it do in C?
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Exactly what it sounds like, assuming you're used to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-)
Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effectively doing the same as the following code:
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Fastest way to tell if two files have the same contents in Unix/Linux?
...do this a for a lot of files, and in my script the diff command seems to be the performance bottleneck.
9 Answers
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How to detect when an Android app goes to the background and come back to the foreground
I am trying to write an app that does something specific when it is brought back to the foreground after some amount of time. Is there a way to detect when an app is sent to the background or brought to the foreground?
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Design Pattern for Undo Engine
...nginering application. I have one huge model class representing the entire building, which include collections of nodes, line elements, loads, etc. which are also custom classes.
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Java Immutable Collections
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Unmodifiable collections are usually read-only views (wrappers) of other collections. You can't add, remove or clear them, but the underlying collection can change.
Immutable collections can't be changed at all - they don't wrap anot...
How do you find all subclasses of a given class in Java?
How does one go about and try to find all subclasses of a given class (or all implementors of a given interface) in Java?
As of now, I have a method to do this, but I find it quite inefficient (to say the least).
The method is:
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What are some compelling use cases for dependent method types?
Dependent method types, which used to be an experimental feature before, has now been enabled by default in the trunk , and apparently this seems to have created some excitement in the Scala community.
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“std::endl” vs “\n”
Many C++ books contain example code like this...
12 Answers
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Can I save the window layout in Visual Studio 2010/2012/2013?
...gs that relate to your current window layout to a file. Uncheck everything but "General Settings" > "Window Layouts", and save the file somewhere you'll be able to find it later.
Then, you can use the "Import and Export Settings Wizard" again to import that settings file, restoring all of your t...