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What does the filter parameter to createScaledBitmap do?
...r painting which affects the sampling of bitmaps when they are transformed based on the value that you provide.
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How can we match a^n b^n with Java regex?
...ration.
There's a slight problem here in that this pattern is missing the "base case", i.e. the case where it can match without the self-reference. A base case is required because group 1 starts "uninitialized"; it hasn't captured anything yet (not even an empty string), so a self-reference attempt ...
Python hashable dicts
...unter for examples from the Python standard library. The other comment is based on the unfounded belief that only subclasses of MutableMapping are well defined.
– Raymond Hettinger
Mar 16 '16 at 16:04
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What does Provider in JAX-RS mean?
...number of predefined providers that will be responsible for implementing a base level of functionality (e.g for mapping to and from XML, translating the most common exceptions etc etc). You can also create your own providers as needed.
The JAX-RS specification is a good reference for reading up on ...
Detect Click into Iframe using JavaScript
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Based on Mohammed Radwan's answer I came up with the following jQuery solution. Basically what it does is keep track of what iFrame people are hovering. Then if the window blurs that most likely means the user clicked the ifr...
AngularJS: ng-repeat list is not updated when a model element is spliced from the model array
... app here (http://avinash.me/losh, source http://github.com/hardfire/losh) based on AngularJS. It is not very clean, but it might be of help.
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What is “(program)” in Chrome debugger’s profiler?
... looks like the CPU Profiler part is like so many other profilers that are based on the same concepts as gprof.
For example, self is nearly a useless number unless there is something like a bubble-sort of a big array of numbers in some code that you can edit. Highly unlikely.
Total should include ...
Flatten nested dictionaries, compressing keys
...a kind of a "functional", "one-liner" implementation. It is recursive, and based on a conditional expression and a dict comprehension.
def flatten_dict(dd, separator='_', prefix=''):
return { prefix + separator + k if prefix else k : v
for kk, vv in dd.items()
for k, v...
What algorithms compute directions from point A to point B on a map?
...ns.
Arachnid described the usage of bidirectional search and edge pruning based on hierarchical information. These speedup techniques work quite well, but the most recent algorithms outperform these techniques by all means. With current algorithms a shortest paths can be computed in considerable le...
What does Serializable mean?
...rom the state and retrieve the class. The object state can come from a database or a different jvm or from a separate component. With the help of Serialization we can retrieve the Object state.
Code Example and explanation:
First let's have a look at the Item Class:
public class Item implements...