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PHP Warning: PHP Startup: Unable to load dynamic library
...try to load that extension.
Either correct the path to the file or comment out the corresponding line.
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Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...s have the same effect (thanks to Robert Siemer’s answer for pointing it out).
The practical difference comes when using a local branch named differently:
git checkout -b mybranch origin/abranch will create mybranch and track origin/abranch
git checkout --track origin/abranch will only create...
Real World Example of the Strategy Pattern
I've been reading about the OCP principal and how to use the strategy pattern to accomplish this.
17 Answers
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How to get Locale from its String representation in Java?
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String str = "en-US";
Locale locale = LocaleUtils.toLocale(str);
System.out.println(locale.toString());
You can also use locale constructors.
// Construct a locale from a language code.(eg: en)
new Locale(String language)
// Construct a locale from language and country.(eg: en and US)
new Local...
Token Authentication vs. Cookies
... maintain a session with the stateless client, knowing mostly everything about the app's state, but stored in the server. In this scenario at no moment does the client hold state, which is not how Ember.js works.
In Ember.js things are different. Ember.js makes the programmer's job easier because it...
Capture Video of Android's Screen
... is giving me response like screenrecord: not found adb is out dated why?
– Poison
Jan 29 '14 at 9:25
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What is the difference between a deep copy and a shallow copy?
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@RoyiNamir You probably already figured this out during the last 7 years, but for anybody else wondering about this: "shallow copy copies the value type bit by bit" is correct, but it's a bit confusing. If you have a Customer object which "has" an Address object, copyin...
Why are quaternions used for rotations?
...eeded, but a compressed matrix is more difficult to deal with, so you lose out on performance. It's all about trade-offs in memory and performance.
– Peter Alexander
Jan 18 '12 at 23:50
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Is null check needed before calling instanceof?
...is
not null and the reference could be
cast to the ReferenceType
without raising a ClassCastException.
Otherwise the result is false."
So if the operand is null, the result is false.
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Java serialization: readObject() vs. readResolve()
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Josh Bloch talks about the conditions under which this breaks in effective Java 2nd ed. Item 77. He mentions about this in this talk he gave in Google IO couple of years back (some times towards the end of the talk): youtube.com/watch?v=pi_I7oD...