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Hidden Features of Java
...e per-thread state.
Since JDK 1.5 Java has had extremely well implemented and robust concurrency tools beyond just locks, they live in java.util.concurrent and a specifically interesting example is the java.util.concurrent.atomic subpackage that contains thread-safe primitives that implement the co...
What Makes a Good Unit Test? [closed]
I'm sure most of you are writing lots of automated tests and that you also have run into some common pitfalls when unit testing.
...
How to sort an array in Bash
...set IFS
Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @sorontar has pointed out that care is re...
Test method is inconclusive: Test wasn't run. Error?
I have a test class and below I have posted a sample test from the test class
49 Answers
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Comparing date part only without comparing time in JavaScript
...
I'm still learning JavaScript, and the only way that I've found which works for me to compare two dates without the time is to use the setHours method of the Date object and set the hours, minutes, seconds and milliseconds to zero. Then compare the two dat...
Is it possible to use Visual Studio on macOS?
...hich also now supports debugging. Thus, if you install Visual Studio Code and .NET Core on a Mac in OS X you can quite freely edit and compile and run and debug and share your code with Visual Studio 2017 on a PC.
– DavidMWilliams
Feb 2 '17 at 5:16
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Why is volatile needed in C?
...ther thread running that also uses the variable; or when there's a signal handler that might change the value of the variable.
Let's say you have a little piece of hardware that is mapped into RAM somewhere and that has two addresses: a command port and a data port:
typedef struct
{
int command;...
How do I push a local repo to Bitbucket using SourceTree without creating a repo on bitbucket first?
Is there a way to import my local git repos to SourceTree and push them to my Bitbucket account, having new repos identical to my local repos be created on my account? Or do I have to make a repo online first and push to that? Github has a way to publish your local repos directly from it's client, a...
How can I make a horizontal ListView in Android? [duplicate]
Like many things in Android, you wouldn't think this would be such a hard problem but ohhh, by golly, would you be wrong. And, like many things in Android, the API doesn't even provide a reasonably extensible starting point. I'll be damned if I'm going to roll my own ListView, when all I want is t...
django unit tests without a db
... db? I want to test business logic which doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations.
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