大约有 7,700 项符合查询结果（耗时：0.0321秒） [XML]
Is Python strongly typed?
...pe is not as expected, a language that complains is strongly typed (python/java) and one that isn't is weakly typed (javascript) Dynamically typed languages(python) are those which allow the type of a variable to change at runtime whereas statically typed languages(java) do not allow this once a v...
Best way to list files in Java, sorted by Date Modified?
...
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(...
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.
...
Learning to write a compiler [closed]
Preferred languages : C/C++, Java, and Ruby.
38 Answers
38
...
Java synchronized static methods: lock on object or class
The Java documentation says:
8 Answers
8
...
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...
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...
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...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
...tps://github.com/android/platform_frameworks_base/blob/android-4.3_r2/core/java/android/bluetooth/BluetoothDevice.java#L1037).
Now, when I receive that exception, I instantiate a fallback BluetoothSocket, similar to the source code below. As you can see, invoking the hidden method createRfcommSocke...