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How do I pass data between Activities in Android application?
... using setData and what is difference between theses two approaches? Which one is better?
– Hosein Aqajani
Jul 18 '16 at 13:04
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What is the performance cost of having a virtual method in a C++ class?
Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer.
...
Are string.Equals() and == operator really same? [duplicate]
... apparent contradictions that appear in the question are caused because in one case the Equals function is called on a string object, and in the other case the == operator is called on the System.Object type. string and object implement equality differently from each other (value vs. reference respe...
OS X: equivalent of Linux's wget
... will also need to install Xcode and the Command Line Tools. Virtually anyone who uses the command line in OSX will want to install these things anyway.
If you can't or don't want to use homebrew, you could also:
Install wget manually:
curl -# "http://ftp.gnu.org/gnu/wget/wget-1.17.1.tar.xz" -o ...
Why does Java switch on contiguous ints appear to run faster with added cases?
...ying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but not the fastest possible, see Update 2 below) to get the multiplied value is to switch on the exponent :
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What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
...Lite databases in an app I'm working on. I've not run into issues yet but one of the early steps from this tutorial is linking the SQLite3 framework. The tutorial calls for libsqlite3.0.dylib but I noticed another one libsqlite3.dylib. Is the latter just a symlink to the latest v3 library like ...
C default arguments
... the rules on how compound initializers set defaults for the exact rules.
One thing that won't work: f(0), because we can't distinguish between a missing value and
zero. In my experience, this is something to watch out for, but can be taken care of as
the need arises---half the time your default re...
Location of my.cnf file on macOS
...nd depends on which installer you used to install mysql. Homebrew puts it one place, the dmg installer puts it another
– slashdottir
Dec 3 '18 at 23:08
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Create a list from two object lists with linq
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This can easily be done by using the Linq extension method Union. For example:
var mergedList = list1.Union(list2).ToList();
This will return a List in which the two lists are merged and doubles are removed. If you don't specify a comparer in...
How can I make PHP display the error instead of giving me 500 Internal Server Error [duplicate]
...ff; about 100 lines below my
display_errors = on;
So remember the last one counts!
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