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How to sort an ArrayList in Java [duplicate]

... I think the answer given under the section "since java-8" here is more succinct: stackoverflow.com/a/2784576/1372202 – Jannik Dec 13 '16 at 20:31 ...
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How do I convert Long to byte[] and back in java

How do I convert a long to a byte[] and back in Java? 12 Answers 12 ...
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Static fields on a null reference in Java

static members ( static fields or static methods) in Java are associated with their respective class rather than the objects of this class. The following code attempts to access a static field on a null reference. ...
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In what order do static/instance initializer blocks in Java run?

... Have you read the Java Language Specification? Static initialization does not get run when the class is loaded. – Hot Licks Aug 9 '14 at 13:45 ...
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What does OSGi solve?

... the fly and services can come and go. Developers used to more traditional Java see this as a very problematic feature and fail to see the advantage. However, it turns out that the real world is highly dynamic and having dynamic services that can come and go makes the services a perfect match for ma...
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Get file name from URL

In Java, given a java.net.URL or a String in the form of http://www.example.com/some/path/to/a/file.xml , what is the easiest way to get the file name, minus the extension? So, in this example, I'm looking for something that returns "file" . ...
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How to convert/parse from String to char in java?

How do I parse a String value to a char type, in Java? 14 Answers 14 ...
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Is there a Java equivalent to C#'s 'yield' keyword?

I know there is no direct equivalent in Java itself, but perhaps a third party? 6 Answers ...
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Difference of Maven JAXB plugins

...com/highsource/maven-jaxb2-plugin) the maven-jaxb-plugin (https://jaxb.dev.java.net/jaxb-maven2-plugin/) the jaxb2-maven-plugin (https://github.com/mojohaus/jaxb2-maven-plugin) Based on the comments of this thread, I've always used the maven-jaxb2-plugin (i.e. plugin #1): Concerning the org....
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What does 'synchronized' mean?

...the same variables, objects and resources. This is not a trivial topic in Java, but here is a quote from Sun: synchronized methods enable a simple strategy for preventing thread interference and memory consistency errors: if an object is visible to more than one thread, all reads or w...