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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
...at any
time. Arrays are objects in Java, and
the way data is stored inside that
object could vary from one JVM
implementation to another.
For this reason, the notion of a
direct buffer was introduced. Direct
buffers are intended for interaction
with channels and native I/O routine...
Git authentication fails after enabling 2FA
...ny other changes I made) and git asked for my username and password. I provided both, but they were "wrong". I tried many of the solutions here: Git push requires username and password but that didn't work. In particular, when switching from https to ssh, the ssh key gives
...
Detect all Firefox versions in JS
...') > -1){
// Do Firefox-related activities
}
You may want to consider using feature-detection ala Modernizr, or a related tool, to accomplish what you need.
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What does `someObject.new` do in Java?
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It's the way to instantiate a non-static inner class from outside the containing class body, as described in the Oracle docs.
Every inner class instance is associated with an instance of its containing class. When you new an inner class from within its containing class it uses the thi...
How do I pass a variable by reference?
...assed by value, assigning a new list to it had no effect that the code outside the method could see. The the_list was a copy of the outer_list reference, and we had the_list point to a new list, but there was no way to change where outer_list pointed.
String - an immutable type
It's immutable, so ...
How to REALLY show logs of renamed files with git?
... combining and splitting files; git doesn't really care which file you consider renamed and which one you consider copied (or renamed and deleted) it just tracks the complete content of your tree.
git encourages "whole tree" thinking where as many version control systems are very file centric. This...
Can I list-initialize a vector of move-only type?
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Consider the in<T> idiom described on cpptruths (cpptruths.blogspot.com/2013/09/…). The idea is to determine lvalue/rvalue at run-time and then call move or copy-construction. in<T> will detect rvalue/lvalue even th...
What's the Android ADB shell “dumpsys” tool and what are its benefits?
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What's dumpsys and what are its benefit
dumpsys is an android tool that runs on the device and dumps interesting information about the status of system services.
Obvious benefits:
Possibility to easily get system information in a simple string representation.
Possibility to use du...
How does the const constructor actually work?
...ly initialize fields to other compile-time constants, so the
right-hand sides are limited to "compile-time constant
expressions"[1]. And it must be prefixed with "const" - otherwise you
just get a normal constructor that happens to satisfy those
requirements. That is perfectly fine, it's jus...
public friend swap member function
In the beautiful answer to the copy-and-swap-idiom there is a piece of code I need a bit of help:
2 Answers
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