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How to close Android application?
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Android has a mechanism in place to close an application safely per its documentation. In the last Activity that is exited (usually the main Activity that first came up when the application started) just place a couple of lines in the onDestroy() method. The call to System.runFinalizersOnExit(t...
Naming convention - underscore in C++ and C# variables
It's common to see a _var variable name in a class field. What does the underscore mean? Is there a reference for all these special naming conventions?
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How can I center an absolutely positioned element in a div?
...o place a div (with position:absolute; ) element in the center of my window. But I am having problems doing so, because the width is unknown .
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How do I install Maven with Yum?
... to learn much about either yum or maven. I've inherited this code and I don't want to spend more time than I have to in this environment.
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create a trusted self-signed SSL cert for localhost (for use with Express/Node)
...his working, it's insane. Note to my future self, here is what you need to do:
I'm working on Windows 10, with Chrome 65. Firefox is behaving nicely - just confirm localhost as a security exception and it will work. Chrome doesn't:
Step 1. in your backend, create a folder called security. we will...
Jump into interface implementation in Eclipse IDE
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Here's what I do:
In the interface, move the cursor to the method name. Press F4. => Type Hierarchy view appears
In the lower part of the view, the method should already be selected. In its toolbar, click "Lock view and show members i...
How to shrink the .git folder
... will perform garbage collection in your repository and prune old objects. do you have a lot of binary files (archives, images, executables) which change often? those usually lead to huge .git folders (remember, git stores snapshots for each revision and binary files compress badly)
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return, return None, and no return at all?
...son given is a human. If it's not a human, we return None since the person doesn't have a mother (let's suppose it's not an animal or something).
def get_mother(person):
if is_human(person):
return person.mother
else:
return None
Using return
This is used for the same rea...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...seems to be the way to go, but I've yet to see a good reference example. I don't need any kind of locks, since the array (actually a matrix) will be read-only. Now, due to its size, I'd like to avoid a copy. It sounds like the correct method is to create the only copy of the array as a sharedme...
How to style SVG with external CSS?
...SVG file is included inline in the HTML:
https://developer.mozilla.org/en/docs/SVG_In_HTML_Introduction
<html>
<body>
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 56.69 56.69">
<g>
&...