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What are the benefits of Java's types erasure?
...plain about type erasure, which is the only thing Java got right, while ignoring all the things it got wrong.
I get huge benefits (e.g. parametricity) and nil cost (alleged cost is a limit of imagination).
new T is a broken program. It is isomorphic to the claim "all propositions are true." I am no...
Using the “animated circle” in an ImageView while loading stuff
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>
<ProgressBar
style="@style/GenericProgressIndicator"/>
</RelativeLayout>
With this style
<style name="GenericProgressBackground" parent="android:Theme">
<item name="android:layout_width">fill_parent</item>
<item name="android:lay...
Beyond Stack Sampling: C++ Profilers
The date is 12/02/10. The days before Christmas are dripping away and I've pretty much hit a major road block as a windows programmer. I've been using AQTime, I've tried sleepy, shiny, and very sleepy, and as we speak, VTune is installing. I've tried to use the VS2008 profiler, and it's been posi...
Why is nginx responding to any domain name?
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The first server block in the nginx config is the default for all requests that hit the server for which there is no specific server block.
So in your config, assuming your real domain is REAL.COM, when a user types that in, it will resolve to your server, and since there is no serv...
JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti
I am getting the following error when trying to get a JSON request and process it:
14 Answers
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How to make a class JSON serializable
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Do you have an idea about the expected output? For example, will this do?
>>> f = FileItem("/foo/bar")
>>> magic(f)
'{"fname": "/foo/bar"}'
In that case you can merely call json.dumps(f.__dict__).
If you want more customized output then you will hav...
The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
Difference between byte vs Byte data types in C# [duplicate]
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The byte keyword is an alias for the System.Byte data type.
They represent the same data type, so the resulting code is identical. There are only some differences in usage:
You can use byte even if the System namespace is not included....
Converting between java.time.LocalDateTime and java.util.Date
Java 8 has a completely new API for date and time. One of the most useful classes in this API is LocalDateTime , for holding a timezone-independent date-with-time value.
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Time complexity of Euclid's Algorithm
...lty deciding what the time complexity of Euclid's greatest common denominator algorithm is. This algorithm in pseudo-code is:
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