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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :) – Thierry-Dimitri Roy Mar 11 '11 at 18:03 ...
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Kotlin secondary constructor

... Update: Since M11 (0.11.*) Kotlin supports secondary constructors. For now Kotlin supports only primary constructors (secondary constructors may be supported later). Most use cases for secondary constructors are solved by one of the techniques below: Technique 1. (solves your case) Define a fa...
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Sending a message to nil in Objective-C

...ize(); ++i){ System.out.println(list.get(i).toString()); } } Now, if you call that method like so: someObject.foo(NULL); you're going to probably get a NullPointerException when it tries to access list, in this case in the call to list.size(); Now, you'd probably never call someObject....
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How to set Oracle's Java as the default Java in Ubuntu?

...e a directory somewhere you like in your file system for example /usr/java now extract the files you just downloaded in that directory: $ sudo tar xvzf jdk-8u5-linux-i586.tar.gz -C /usr/java now to set your JAVA_HOME environment variable: $ JAVA_HOME=/usr/java/jdk1.8.0_05/ $ sudo update-alternat...
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How to overwrite the previous print to stdout in python?

... to the next line so your prompt won't overwrite your final output. Update Now that Python 2 is EOL, a Python 3 answer makes more sense. For Python 3.5 and earlier: for x in range(10): print('{}\r'.format(x), end="") print() In Python 3.6 and later, f-strings read better: for x in range(10): ...
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Why does datetime.datetime.utcnow() not contain timezone information?

...e like this import pytz # 3rd party: $ pip install pytz u = datetime.utcnow() u = u.replace(tzinfo=pytz.utc) #NOTE: it works only with a fixed utc offset now you can change timezones print(u.astimezone(pytz.timezone("America/New_York"))) To get the current time in a given timezone, you could...
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Get week of year in JavaScript like in PHP

...ch engine pointed you here anyways. As said above but without a class: let now = new Date(); let onejan = new Date(now.getFullYear(), 0, 1); let week = Math.ceil( (((now.getTime() - onejan.getTime()) / 86400000) + onejan.getDay() + 1) / 7 ); ...
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What would cause an algorithm to have O(log n) complexity?

My knowledge of big-O is limited, and when log terms show up in the equation it throws me off even more. 6 Answers ...
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What is a Y-combinator? [closed]

... concept from the “functional” side of things. Most programmers don't know much at all about combinators, if they've even heard about them. ...
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Get User's Current Location / Coordinates

... Step by step answer. But please update it. Its not working for now. – Dheeraj D Oct 13 '17 at 5:16 add a comment  |  ...