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How to convert an Array to a Set in Java
I would like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like:
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What is the C# equivalent to Java's isInstance()?
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The equivalent of Java’s obj.getClass().isInstance(otherObj) in C# is as follows:
bool result = obj.GetType().IsAssignableFrom(otherObj.GetType());
Note that while both Java and C# work on the runtime type object (Java java.lang.Class ≣...
Differences between Oracle JDK and OpenJDK
...ly by Oracle only.
OpenJDK and Oracle JDK are implementations of the same Java specification passed the TCK (Java Technology Certification Kit).
Most of the vendors of JDK are written on top of OpenJDK by doing a few tweaks to [mostly to replace licensed proprietary parts / replace with more high-...
Java: Equivalent of Python's range(int, int)?
Does Java have an equivalent to Python's range(int, int) method?
13 Answers
13
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What browsers support HTML5 WebSocket API?
...nformance tests.
Server side
It depends on which language you use.
In Java/Java EE:
Jetty 7.0 supports it (very easy to use) V 7.5 supports RFC6455 - Jetty 9.1 supports javax.websocket / JSR 356)
GlassFish 3.0 (very low level and sometimes complex), Glassfish 3.1 has new refactored Websocket ...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
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EDIT: Now that Java 8 has been released, if you can use that, do so! java.time is even cleaner than Joda Time, in my view. However, if you're stuck pre-Java-8, read on...
Max asked for the pros and cons of using Joda...
Pros:
It works, ...
Android SDK manager won't open
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Make sure your java\bin directory is in your path statement before the windows\system32 directory.
The SDK Manager uses java and it was finding the one in the system32 folder.
In a CMD window, you can run 'where java'.
Don't forget to re...
Why doesn't Java allow overriding of static methods?
...s so the concept is not applicable.
There were two considerations driving Java's design that impacted this. One was a concern with performance: there had been a lot of criticism of Smalltalk about it being too slow (garbage collection and polymorphic calls being part of that) and Java's creators we...
File to byte[] in Java
How do I convert a java.io.File to a byte[] ?
25 Answers
25
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为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...发原生组件实现不了的、更加强大的功能。一般拓展采用java/kotlin语言进行开发，由于拓展开发相当于直接使用安卓原生开发语言开发安卓相关功能，因此理论上拓展可以实现任何的安卓功能。注意：java/kotlin写出来的拓展只能...