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How is CountDownLatch used in Java Multithreading?
Can someone help me to understand what Java CountDownLatch is and when to use it?
12 Answers
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Setting an object to null vs Dispose()
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It's important to separate disposal from garbage collection. They are completely separate things, with one point in common which I'll come to in a minute.
Dispose, garbage collection and finalization
When you write a using statement, it's...
Should “node_modules” folder be included in the git repository
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The answer is not as easy as Alberto Zaccagni suggests. If you develop applications (especially enterprise applications), including node_modules in your git repo is a viable choice and which alternative you choose depends on your project.
Because he argued v...
You asked me to pull without telling me which branch you want to merge with
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It says bucket-4 pushes to bucket-4 just because the default when pushing a branch is to push it to one with a matching name on the remote. (Note that this is still the default, even if the local branch is tracking a remote-tracking branch and the ...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
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If you are doing something like writing HTML and Javascript in a code editor on your personal computer, and testing the output in your browser, you will probably get error messages about Cross Origin Requests. Your browser will render HTML and run Javascript, jQuery, angularJs in your browser wit...
What's the difference between commit() and apply() in SharedPreferences
...se.
apply() was added as the Android dev team noticed that almost no one took notice of the return value, so apply is faster as it is asynchronous.
http://developer.android.com/reference/android/content/SharedPreferences.Editor.html#apply()
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How to ssh to vagrant without actually running “vagrant ssh”?
I would like to reproduce the way Vagrant logs in to my VM within a shell script using an ssh command, so I create an alias to my Vagrant instance.
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How to print a debug log?
I'd like to debug some PHP code, but I guess printing a log to screen or file is fine for me.
15 Answers
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What are the best practices for SQLite on Android?
...ally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn't get corrupted.
The basic answer.
The SqliteOpenHelper object holds on t...
What does FETCH_HEAD in Git mean?
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FETCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository. git pull first invokes git fetch, in normal cases fetching a branch from the remote; FETCH_HEAD points to the tip of this branch (it stores the SHA1 of t...