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List all environment variables from the command line
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Java Regex Capturing Groups
...ut:
group 1: This order was placed for QT
group 2: 3000
group 3: ! OK?
More info on Java Pattern here.
Finally, the capturing groups are delimited by round brackets, and provide a very useful way to use back-references (amongst other things), once your Pattern is matched to the input.
In Jav...
How to check if an object is nullable?
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Isn't it silly that a tiny favicon requires yet another HTTP request? How can I put the favicon into
...ve not been able to handle favicons in .svg format.
That's not the case anymore.
See: https://caniuse.com/#feat=link-icon-svg
1) Choose SVG as the Favicon format
Right now, in June 2020, these browsers can handle SVG Favicons:
Chrome
Firefox
Edge
Opera
Chrome for Android
KaiOS Browser
Note that t...
Dilemma: when to use Fragments vs Activities:
... you feel comfortable with Fragments, you can watch all their videos. Even more they are mandatory material.
Can you right now look at your UI and figure out if you need an Activity or a Fragment? Did you get a new perspective? I think you did.
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Disable validation of HTML5 form elements
...o use the new HTML5 form types, for example <input type="url" /> ( more info about the types here ).
11 Answers
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Add support library to Android Studio project
...his tool.
I'd suggest referring to @skyfishjy's answer, as it seems to be more updated than this one.
The below is not updated
Although android studio is based on IntelliJ IDEA, at the same time it relies on gradle to build your apk. As of 0.2.3, these two doesn't play nicely in term of configu...
Is nested function a good approach when required by only one function? [closed]
...y the concept -- in actual use what do_it() does would presumably be a bit more complicated than what can be handled by some arithmetic in a single return statement.
– martineau
Sep 2 '14 at 13:07
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Big-O for Eight Year Olds? [duplicate]
I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...