Java
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The right way to use varhandle in Java 9?
I spent a lot of time investigating some new features of Java 9, but I didn't find any useful and practical examples C…… -
Java – access jar resources
I have a jar file and resources (mainly configuration cache, log, etc.) that I want to distribute I have a problem wit…… -
Java – spring welcome file list mapped correctly
I know that in spring, I must define the welcome file, which should be outside the WEB-INF folder, so I define it as f…… -
Java swing – running on EDT
I have a few questions about swing and use EDT to update the GUI I've just started reading this, so I'm a new beginner…… -
RSA encryption in Java: cross platform issues?
situation I am using RSA encryption in Java I am loading the data on HTC saphire (32b) developer's mobile phone with A…… -
Java – can Maven generate exe files and Mac OS X applications?
Let's say you created a java desktop application with jars and some dependencies and possible license text files I kno…… -
MediaPlayer. Java. In the displaying () method lang.IllegalStateException
public static MediaPlayer mp=null; public static MediaPlayer mp=null; public static void playGeneric(int name,final Im…… -
Use “this” and method (in Java)
What about using the "this" method in Java? Are there selective or mandatory situations? The only thing I encountered …… -
Does Java – Maven dependency plugin use the same other types of artifact resolution as other mavens?
If I use the Maven dependency plugin, I cannot use the version range In addition, it seems that the version of a defin…… -
Java EE – compare openejb with GlassFish
Can we replace GlassFish with Tomcat / openejb for lighter applications? What are the limitations of openejb instead o…… -
Java – notificationlistenerservice: NullPointerException on getactivenotifications
According to this tutorial, I try to implement notificationlistenerservice in my application: http://www.kpbird.com/20…… -
How to call C from Java?
I want to call a C method from Java I read about JNI, but I didn't get how to get all the library files. I should keep…… -
Java – Reference “this” when calling the super constructor?
I have a Class A and write a subclass B. only one constructor is parameterized B must call this super constructor of A…… -
java 7 uuid bug？
I believe I may have found a UUID multithreading error in Oracle java7 update 5. I wonder if anyone can confirm it wit…… -
Java – how do I get a subclass recorder?
I have a subclass and a superclass In superclasses, I have a way to record something When I create an instance of a su…… -
Java – JPS cannot connect to remote jstatd
I'm using jstatd to query a remote JVM using JPS so that I can eventually monitor it using visual VM I use jstatd to r…… -
Java – create a command console
I have an unusual question: how to use swing to create a "command console"? What I want is the console where the user …… -
Java – default timeout for httpcomponent client
I can't find any documents on the default httpparams of httpclient 4.1? What is the default socket timeout when I do a…… -
Java – type A has defined an error
I tried to search for a solution, but I found that I didn't know how to apply it in this case Please help me correct m…… -
Java – use add () in the fragmenttransaction addToBackStack(),add(). Detach() and replace() What’s the difference between addtobackstack()?
In the FragmentTransaction project on Android docs, the method replace () is described, which is the same as calling t…… -
Java – how do I map spring MVC controllers to URIs with and without trailing slashes?
I have a spring controller with several requestmappings with different URIs My servlet is "UI" The servlet's base URI …… -
Bring components on JPanel to the front end (Java)
In VB, you can use zorder Before you ask, no, I didn't use the layout manager in this case If you have two components …… -
Switch scenes in JavaFX
I have a problem closing the current scene and opening another scene when selecting MenuItem My main stage codes are a…… -
The best way to merge and remove duplicates from multiple lists in Java
I have a situation where I will receive 2 ArrayList < widget > I need to be able to merge all lists and delete a…… -
Java – Apache wink and Apache CXF jax-rs implementation
Why does Apache have two implementations of jax-rs? CXF seems to be a huge bundle, including Jax WS and Jax rs. blinki…… -
Java – use JNA to link to a custom DLL
How to access customization using JNA lib / . DLL function? thank you. Solution Example (from Wikipedia): import com.s…… -
Sparksql and explode on dataframe in Java
Is there a simple way to use array column explosion on sparksql dataframe? It's relatively simple in Scala, but this f…… -
Java – added = = confused behavior
There is already an answer to this question: > integer wrapper objects share the same instances only within the val…… -
Java – continue to develop plug-ins
There is an Eclipse Plug-in managed by maven, which contains the following configurations: <project xmlns="http://m…… -
Java – sqlitedatabase multi thread locking mode
I use this class to manage connections to the underlying SQLite database public class BasicDataSource { protected…… -
Java – string decoding UTF-8
How do I decode a UTF-8 string on Android? I tried to use this command, but output the same input: URLDecoder.decode("…… -
Java – transaction. In hibernate What is commit()?
transaction. What does commit () do? Account account = new Account(); account.setId(100); account = (Account) session.……