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String to LocalDate
...MMM-dd");
final LocalDate dt = dtf.parseLocalDate(yourinput);
If using Java 8 or later, then refer to hertzi's answer
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Interview question: Check if one string is a rotation of other string [closed]
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if( substring(s2,concat(s1,s1))
return true
return false
end
In Java:
boolean isRotation(String s1,String s2) {
return (s1.length() == s2.length()) && ((s1+s1).indexOf(s2) != -1);
}
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How do I hotkey directly to File Search tab in Eclipse
When I use CTRL + H I end up on the Java Search tab. I would very much like a shortcut to go directly to File Search instead. Is that possible?
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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 ...