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How to get a index value from foreach loop in jstl
...rror: loop is not defined ` and +1 for your effort
– Java Questions
Sep 16 '13 at 10:46
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Should I always use a parallel stream when possible?
With Java 8 and lambdas it's easy to iterate over collections as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream:
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
...you're a Scala developer, then Akka should be a no-brainer. However Akka's Java bindings are not very Java-ish and require casting due to Scala's type system.
Also in Java people don't typically make immutable objects which I recommend you do for messaging. Consequently its very easy in Java to ac...
How to convert / cast long to String?
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Nice, but note that java.util.Objects is only available since Java 7.
– Guillaume Husta
Jul 23 '14 at 9:12
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Any reason to prefer getClass() over instanceof when generating .equals()?
...iskov substitution principle, and can lead to very surprising behavior. In Java, it's particularly important because most of the collections (HashTable, etc.) are based on the equals method. If you put a member of the super class in a hash table as the key and then look it up using a subclass instan...
Is there a way to get the source code from an APK file?
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Simple way: use online tool http://www.javadecompilers.com/apk, upload apk and get source code.
Procedure for decoding .apk files, step-by-step method:
Step 1:
Make a new folder and copy over the .apk file that you want to decode.
Now rename the extension of th...
What does the red exclamation point icon in Eclipse mean?
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According to the documentation:
Decorates Java projects and working
sets that contain build path errors
In practice, I've found that a "build path error" may be caused by any number of reasons, depending on what plugins are active. Check the "Problems" view for ...
Android Archive Library (aar) vs standard jar
... as the standard build system for Android apps. Well, coming from standard Java development I usually depend on jar files in order to build my project. However it seems that Android has also aar packages, which are the equivalent to the dll files in a Windows OS, as mentioned here :
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Java JUnit: The method X is ambiguous for type Y
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Post as a guest
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IntelliJ IDEA with Junit 4.7 “!!! JUnit version 3.8 or later expected:”
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my module is a java library module, so changing JRE to 1.8 java solved the issue.
Or, you can also do it globally via Module Settings > SDK Location > JDK, specifying Oracle's JDK 8 instead of Android SDK's copy.
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