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What is the garbage collector in Java?
...he Java Virtual Machine which gets rid of objects which are not being used by a Java application anymore. It is a form of automatic memory management.
When a typical Java application is running, it is creating new objects, such as Strings and Files, but after a certain time, those objects are not u...
Java HTTPS client certificate authentication
...file containing
The client's public certificate (in this instance signed by a self-signed CA)
The client's private key
To generate it I used OpenSSL's pkcs12 command, for example;
openssl pkcs12 -export -in client.crt -inkey client.key -out client.p12 -name "Whatever"
Tip: make sure you get t...
Multiple commands in gdb separated by some sort of delimiter ';'?
...en printed a backtrace, but it doesn't.
You can accomplish the same thing by calling into the Python interpreter.
python import gdb ; print(gdb.execute("s")) ; print(gdb.execute("bt"))
It's possible to wrap this up into a dedicated command, here called "cmds", backed by a python definition.
Here...
Brew update failed: untracked working tree files would be overwritten by merge
...
you might want to do also git add . followed by git stash :P
– mkk
Feb 28 '14 at 16:30
W...
What's the _ underscore representative of in Swift References?
...
Swift gives the first parameter name in a method a local parameter name by default, and gives the second and subsequent parameter names both local and external parameter names by default.
On the other hand, functions by default don't have external parameter names.
For example, we have this foo...
Resize UIImage by keeping Aspect ratio and width
I seen in many posts for resizing the image by keeping aspect ratio. These functions uses the fixed points(Width and Height) for RECT while resizing. But in my project, I need to resize the view based on the Width alone, Height should be taken automatically based on the aspect ratio.
anyone help me ...
What are the default access modifiers in C#?
... sealed. Struct members
introduced in a struct (that is, not
inherited by that struct) cannot have
protected or protected internal
declared accessibility. (Note that a
type declared as a member of a struct
can have public, internal, or private
declared accessibility, whereas a type
d...
Why do we copy then move?
...re I answer your questions, one thing you seem to be getting wrong: taking by value in C++11 does not always mean copying. If an rvalue is passed, that will be moved (provided a viable move constructor exists) rather than being copied. And std::string does have a move constructor.
Unlike in C++03, ...
JavaScriptSerializer - JSON serialization of enum as string
...instead of JavaScriptSerializer than see answer on this question provided by OmerBakhari: JSON.net covers this use case (via the attribute [JsonConverter(typeof(StringEnumConverter))]) and many others not handled by the built in .net serializers. Here is a link comparing features and functionalitie...
Assign same value to multiple variables at once?
...ns $a = ( $b = ( $c = $d ) )
PHP passes primitive types int, string, etc. by value and objects by reference by default.
That means
$c = 1234;
$a = $b = $c;
$c = 5678;
//$a and $b = 1234; $c = 5678;
$c = new Object();
$c->property = 1234;
$a = $b = $c;
$c->property = 5678;
// $a,b,c->pro...