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What is the difference between public, protected, package-private and private in Java?
...e MyClass and I'm doing AnotherClass extends MyClass I will have access to all protected and public methods and properties from within AnotherClass. If I do MyClass myClass = new MyClass(); in AnotherClass somewhere - let's say the constructor - I will only have access to the public methods if it is...
How do I join two SQLite tables in my Android application?
... Honestly I don't know if you can fetch with "Table.column" using getColumnIndex, You can always calculate the index manually, just debug-test it; 4. "multiple items for the second table" also depends on join type.
– leRobot
Jan 4 '16 at 15:54
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How do I write good/correct package __init__.py files
...
__all__ is very good - it helps guide import statements without automatically importing modules
http://docs.python.org/tutorial/modules.html#importing-from-a-package
using __all__ and import * is redundant, only __all__ is nee...
How do you log all events fired by an element in jQuery?
I'd like to see all the events fired by an input field as a user interacts with it. This includes stuff like:
12 Answers
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When should one use HTML entities?
... entities.
Some libraries do not play along nice with utf-8. For instance, PHP in some Linux distributions dropped full support for utf-8 in their regular expression libraries.
It is harder to limit the number of characters in a text that uses html entities, because a single entity uses many charact...
git - diff of current changes before committing
...it diff by default shows difference between your working directory and the index (staging area for the next commit).
If you have already added (staged) the changes to the staging area, git diff --staged does the job. Staging area is the data from which the next commit will be formed by git commit....
Auto-loading lib files in Rails 4
.../foo.rb:
class Foo
end
in lib/foo/bar.rb:
class Foo::Bar
end
if you really wanna do some monkey patches in file like lib/extensions.rb, you may manually require it:
in config/initializers/require.rb:
require "#{Rails.root}/lib/extensions"
P.S.
Rails 3 Autoload Modules/Classes by Bill H...
Difference between __getattr__ vs __getattribute__
... the attribute wasn't found the usual ways. It's good for implementing a fallback for missing attributes, and is probably the one of two you want.
__getattribute__ is invoked before looking at the actual attributes on the object, and so can be tricky to implement correctly. You can end up in infi...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...
Since I can't conceive any use of zipping on collections other than indexed ones (Lists) and I am a big fan of simplicity, this would be my solution:
<A,B,C> Stream<C> zipped(List<A> lista, List<B> listb, BiFunction<A,B,C> zipper){
int shortestLength = Mat...
The ViewData item that has the key 'MY KEY' is of type 'System.String' but must be of type 'IEnumera
...eal);
db.SubmitChanges();
return RedirectToAction("Index");
}
catch
{
var db = new DB();
IEnumerable<SelectListItem> basetypes = db.Basetypes.Select(
b => new SelectListItem { Value = b.basetype, Text = b...