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What is the difference between Strategy design pattern and State design pattern?
...ing different things based on the
state, while leaving the caller relieved from the burden of
accommodating every possible state. So for example you might have a
getStatus() method that will return different statuses based on the
state of the object, but the caller of the method doesn't have to be
c...
Android: Scale a Drawable or background image?
...
There is an easy way to do this from the drawable:
your_drawable.xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:drawable="@color/bg_color"/>
<...
Use Mockito to mock some methods but not others
... implementation is called for all methods except the few I need to control from the test.
– bigh_29
Dec 3 '15 at 21:17
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Is it possible only to declare a variable without assigning any value in Python?
...
It's a little difficult to tell if that's really the right style to use from such a short code example, but it is a more "Pythonic" way to work.
EDIT: below is comment by JFS (posted here to show the code)
Unrelated to the OP's question but the above code can be rewritten as:
for item in sequ...
How do I change tab size in Vim?
...mbering that this inserts spaces not tabs. For tabs remove the "expandtab" from ~/.vimrc file
– Paiusco
Jul 27 at 14:34
...
Check if a variable is a string in JavaScript
...isplays "string"
alert(typeof stringObject) // displays "object"
Example from this webpage. (Example was slightly modified though).
This won't work as expected in the case of strings created with new String(), but this is seldom used and recommended against[1][2]. See the other answers for how to...
QString to char* conversion
...ng str = my_qstring.toStdString();
const char* p = str.c_str();
It's far from optimal, but will do the work.
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Java Singleton and Synchronization
...classic” singleton that works in a multithreaded environment (starting from Java 1.5) you should use this one.
public class Singleton {
private static volatile Singleton instance = null;
private Singleton() {
}
public static Singleton getInstance() {
if (instance == null) {
s...
JavaFX Application Icon
...ceAsStream("/images/comparison.png")));
and if you are directly using it from your package which is not a good practice use this
stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("comparison.png")));
and if you have a folder structure and you have your icon inside t...
PHP code is not being executed, instead code shows on the page
...may sound silly, but you never know. An easy way to check is to run php -v from a command line and see if returns version information or any errors.
Make sure that the PHP module is listed and uncommented inside of your Apache's httpd.conf This should be something like LoadModule php5_module "c:/php...