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Best way to list files in Java, sorted by Date Modified?
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Elegant solution since Java 8:
File[] files = directory.listFiles();
Arrays.sort(files, Comparator.comparingLong(File::lastModified));
Or, if you want it in descending order, just reverse it:
File[] files = directory.listFiles();
Arrays.sort(...
Where is Maven' settings.xml located on mac os?
...17-04-04T03:39:06+08:00)
Maven home: /usr/local/Cellar/maven/3.5.0/libexec
Java version: 1.8.0_121, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre
Default locale: zh_CN, platform encoding: UTF-8
OS name: "mac os x", version: "10.11.5", arch...
What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
...count -lt 1000) { Write-Output "hello"; $count++ }}
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measure-command { $count = 0; while ($count -lt 1000) { [console]::WriteLine("hello"); $count++ }}
158ms
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Java synchronized static methods: lock on object or class
The Java documentation says:
8 Answers
8
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Picking a random element from a set
...terested in picking a random element from a
HashSet or a LinkedHashSet, in Java.
Solutions for other languages are also welcome.
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Best way to define error codes/strings in Java?
I am writing a web service in Java, and I am trying to figure out the best way to define error codes and their associated error strings . I need to have a numerical error code and an error string grouped together. Both the error code and error string will be sent to the client accessing the web ser...
Learning to write a compiler [closed]
Preferred languages : C/C++, Java, and Ruby.
38 Answers
38
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Dynamically Changing log4j log level
...logging level as well, and it worked
passed this as JVM parameter (I use Java 1.7)
Sorry this won't dynamically change the logging level, it requires a restart of the service
java -Dlogging.level=DEBUG -cp xxxxxx.jar xxxxx.java
in the log4j.properties file, I added this entry
log4j.rootLogg...
How does akka compare to Erlang? [closed]
...ss GC - Akka uses JVM GCs
Erlang has OTP - Akka integrates with the entire Java ecosystem (Apache Camel, JAX-RS,
etc etc)
Erlang does the process
scheduling for you - Akka allows you
to use many different Dispatchers
with endless configuration
opportunities
Erlang does hot code
reload - Akka can sup...
What is the idiomatic way to compose a URL or URI in Java?
How do I build a URL or a URI in Java? Is there an idiomatic way, or libraries that easily do this?
7 Answers
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