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The difference between Classes, Objects, and Instances
...he set of values that is the type Y.
So that's what the term "instance" really means: it describes a relationship not a thing.
The type system of the Java programming language supports two kinds of types, primitive types and reference types. The reference types are further divided into the classe...
How do I determine whether an array contains a particular value in Java?
...h FindBugs will tell you is very naughty. Do not modify statics and do not allow other code to do so also. At an absolute minimum, the field should be private:
private static final String[] VALUES = new String[] {"AB","BC","CD","AE"};
(Note, you can actually drop the new String[]; bit.)
Reference a...
How do I use regex in a SQLite query?
I'd like to use a regular expression in sqlite, but I don't know how.
17 Answers
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What uses are there for “placement new”?
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Placement new allows you to construct an object in memory that's already allocated.
You may want to do this for optimization when you need to construct multiple instances of an object, and it is faster not to re-allocate memory each time y...
Vim Insert Mode on Mac OS X
..., or perhaps Insert is mapped elsewhere (use inoremap instead of imap to fix this).
– smathy
Sep 5 '16 at 16:48
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What is an SDL renderer?
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SDL_Window
SDL_Window is the struct that holds all info about the Window itself: size, position, full screen, borders etc.
SDL_Renderer
SDL_Renderer is a struct that handles all rendering. It is tied to a SDL_Window so it can only render within that SDL_Window. It als...
Disable vertical scroll bar on div overflow: auto
Is it possible to allow only a horizontal scroll bar when using overflow:auto (or scroll)?
8 Answers
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Rails: Using greater than/less than with a where statement
I'm trying to find all Users with an id greater than 200, but I'm having some trouble with the specific syntax.
9 Answers
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Git push error '[remote rejected] master -> master (branch is currently checked out)'
... remote repository folder:
git config --bool core.bare true
Then delete all the files except .git in that folder. And then you will be able to perform git push to the remote repository without any errors.
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What exactly do “u” and “r” string flags do, and what are raw string literals?
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There's not really any "raw string"; there are raw string literals, which are exactly the string literals marked by an 'r' before the opening quote.
A "raw string literal" is a slightly different syntax for a string literal, in which a ba...