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Why not abstract fields?
...Child constructor would be trying to use a non-existent noargs constructor and that is a compilation error (not a warning).
– Stephen C
Feb 6 '10 at 0:15
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Ruby: kind_of? vs. instance_of? vs. is_a?
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kind_of? and is_a? are synonymous.
instance_of? is different from the other two in that it only returns true if the object is an instance of that exact class, not a subclass.
Example:
"hello".is_a? Object and "hello".kind_of? Obje...
The function to show current file's full path in mini buffer
...t thing to do is to have your emacs window to always show your system-name and the full path of the buffer you're currently editing :
(setq frame-title-format
(list (format "%s %%S: %%j " (system-name))
'(buffer-file-name "%f" (dired-directory dired-directory "%b"))))
You can also d...
What is WEB-INF used for in a Java EE web application?
...he
WEB-INF directory are visible to servlet code using the getResource
and getResourceAsStream method calls on the ServletContext, and may
be exposed using the RequestDispatcher calls.
This means that WEB-INF resources are accessible to the resource loader of your Web-Application and not dir...
Favorite (G)Vim plugins/scripts? [closed]
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Nerdtree
The NERD tree allows you to explore your filesystem and to open files and
directories. It presents the filesystem to you in the form of a tree which you
manipulate with the keyboard and/or mouse. It also allows you to perform
simple filesystem operations.
The tree can be tog...
How do I delete a Discipline in EPF Composer 1.5?
I'm making a method combining Scrum with the OpenUP lifecycle and deliverables. I also want to keep the OpenUP disciplines apart from "Project Management". I can "hide" it so that it's not immediately obvious in my generated method site. But when you then navigate to the "Risk List" artefact for ex...
How to use Python to login to a webpage and retrieve cookies for later usage?
I want to download and parse webpage using python, but to access it I need a couple of cookies set. Therefore I need to login over https to the webpage first. The login moment involves sending two POST params (username, password) to /login.php. During the login request I want to retrieve the cookies...
how to mix links ( tag ) and headings ( tag ) in web standard?
...hat is the correct code to create a link with heading 1 according to web standards?
4 Answers
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What does `unsigned` in MySQL mean and when to use it?
What does "unsigned" mean in MySQL and when should I use it?
1 Answer
1
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What does scale horizontally and scale vertically mean? [duplicate]
...itecture with the database on the fourth, what does scaling horizontally and scaling vertically mean?
2 Answers
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