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Extract digits from a string in Java
...der constructor (such as input.length()) to ensure that it won't need to reallocate. You don't need to demand a String here; CharSequence suffices. Also, you can separate the allocation of the StringBuilder from the collection of non-digits by writing a separate function that accepts a CharSequence ...
In Android, how do I set margins in dp programmatically?
...droid:layout_margin="10dp", the child is pleading the parent view group to allocate space that is 10dp bigger than its actual size. (padding="10dp", on the other hand, means the child view will make its own content 10dp smaller.)
Consequently, not all ViewGroups respect margin. The most notorious e...
Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned'
...hip of an object if you create it using a method whose name begins with “alloc”, “new”, “copy”, or “mutableCopy”.
A property named newTitle, when synthesised, yields a method called -newTitle, hence the warning/error. -newTitle is supposed to be a getter method for the newTitle pro...
Member '' cannot be accessed with an instance reference
...d some time before
its first use.
A static entity has one storage location allocated, and that is
shared by all who access that entity.
A static entity can only be accessed through its type name, not
through an instance of that type.
A static method does not have an implicit ‘this’ argument, as ...
What is the maximum length of a URL in different browsers?
...Qj/xABTEAACAAQCBAcLBgsFBwUAAAABAgADBBESIQUGMUEHEyJRYYGRFBYyVHF0lKGxs9IjNEKS0dMXMzVSYmRypMHj8GOTo7LiJENzosLh8RVTgoPD/8QAGQEBAAMBAQAAAAAAAAAAAAAAAAECAwQF/8QAJxEAAgIBAwMEAgMAAAAAAAAAAAECEQMSITEEE0EiUWGBkfAyceH/2gAMAwEAAhEDEQA/AOiaq6q0b0NGzUlMzNTySWMiUSSZaEkkrmbw17z6LxOl9HlfDBqf8wovNpHu0hvACjvPovE6X0eV8...
Clear file cache to repeat performance testing
...hnique (other than rebooting) that seems to work:
Run a few copies of MemAlloc
With each one, allocate large chunks of memory a few times
Use Process Explorer to observe the System Cache size reducing to very low levels
Quit the MemAlloc programs
It isn't selective though. Ideally I'd like to be...
Look up all descendants of a class in Ruby
...essentially a way to access anything and everything that's currently using allocated memory, so iterating over every single one of its elements to check if it is a sublass of the Animal class isn't ideal.
In the code below, the inherited Animal class method implements a callback that will add any ...
Fastest method to escape HTML tags as HTML entities?
... makes my system run out of RAM (with ~6GB free) and firefox seems to stop allocating just before it's out of memory so instead of killing the offending process, linux will sit there and let you do a hard power off.
– Luc
Jul 11 at 9:09
...
How Big can a Python List Get?
... at the end) . Pointers are 4 bytes long and store a memory address to the allocated object. They are "only" 4 bytes long because with 4 bytes you can address every element in a memory of nowadays computers.
– Antonio Ragagnin
Dec 2 '15 at 16:17
...
What is the default initialization of an array in Java?
...ava Virtual Machine is not required to zero out the underlying memory when allocating local variables (this allows efficient stack operations if needed) so to avoid random values the Java Language Specification requires local variables to be initialized.
...