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Grasping the Node JS alternative to multithreading
... of another core for the thread pool, for example if you do a non-blocking file system read this is likely implemented by telling a thread from the thread pool to perform a read and set a callback when it's done which means that the read could be happening on a different thread/core while the main n...
Custom toast on Android: a simple example
...oid onClick(View v) {
// Find custom toast example layout file
View layoutValue = LayoutInflater.from(MainActivity.this).inflate(R.layout.android_custom_toast_example, null);
// Creating the Toast object
Toast toast = new Toast(getAppl...
How to wrap async function calls into a sync function in Node.js or Javascript?
...ctual data:
var output = getData();
Under the hood data is saved in a file so you implemented getData using Node.js built-in fs.readFileSync . It's obvious both getData and fs.readFileSync are sync functions. One day you were told to switch the underlying data source to a repo such as Mo...
Change MySQL default character set to UTF-8 in my.cnf?
...:
Remove that directive and you should be good.
Then your configuration file ('/etc/my.cnf' for example) should look like that:
[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
Restart MySQL.
For making sure, your MySQL is UTF-8, run the foll...
Spring @PostConstruct vs. init-method attribute
...avax package. Both are the same. using init-method we need to added in xml file.If you use @postconstruct adding in xml is not required. Check out the below article .
http://answersz.com/spring-postconstruct-and-predestroy/
...
git: Apply changes introduced by commit in one repo to another repo
...t for me, thanks. Since the second repo was also local, just had to use a file URI when adding it as a remote.
– palimpsestor
Mar 5 '15 at 6:13
2
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How does a Java HashMap handle different objects with the same hash code?
... the details, lookup the source code of HashMap, which you can find in the file src.zip in your JDK installation directory.
– Jesper
Jul 2 '14 at 7:04
2
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Overriding Binding in Guice
...odule, with its own RoboGuice module definition in the AndroidManifest.xml file.
The setup looks like this. In the Library Module there are these definitions:
AndroidManifest.xml:
<application android:allowBackup="true">
<activity android:name="com.example.SomeActivity/>
&l...
String concatenation: concat() vs “+” operator
...
I haven't decompiled the class to see the internals or run it through profiler yet, but I suspect a += b spends much of the time creating new objects of StringBuilder and then converting them back to String.
share
...
Returning from a finally block in Java
...ppened in all the preceeding code. Principally this is closing / releasing file pointers, database connections etc., though I could see it being stretched to say adding in bespoke auditing.
Anything that affects the return of the function should lie in the try{} block. Even if you had a method whe...