Recent Posts
-
How to maintain the same session ID across multiple web applications in Java
How do I maintain the same session ID for multiple web applications in the JBoss server? Solution For similar question…… -
Java – what is the memory range to refresh or publish to various threads when using volatile and synchronized?
This problem only concerns memory visibility and does not occur before and after There are four ways in Java to ensure…… -
Java – clean architecture: combined with interactors
I recently stumbled upon Uncle Bob's clean architecture. I'd like to know whether the interactors can execute other in…… -
Java – the sum of all numbers for a given positive number
Method returns that if you enter a number, assuming 345, the output should be 3 4 5 = 12 – > 1 2 = 3 What did I do …… -
Running Java programs on the back end
Hello everyone, I want to run a Java application as a back-end process It's like Tomcat server For I have developed an…… -
Java: no AWT graphics created?
Are there any libraries that can create drawings without using AWT? thank you! Solution Unless you want to implement y…… -
Java – Amazon EMR: run custom jar with input and output from S3
I'm trying to run an EMR cluster with custom jar steps The program takes input from S3 and outputs it to S3 (or at lea…… -
Java – unable to load ‘classpath resource [org / springframework / WS / client / core / webservicetemplate. Properties]
I wrote some code where I was using another web service and sending a request to the web service using the web service…… -
Can I check out the directory structure only in cvsclient in Java?
I'm using org NetBeans lib cvsclient Jar executes various CVS commands in Java classes that communicate with CVs I can…… -
Compiler construction – converts an abstract syntax tree into bytecode
I'm trying to learn how to build a simple compiler as a hobby My goal is java virtual machine I wrote a simple syntax …… -
Java – how do I know if locale is in 12 or 24 hour format?
See English answers > How do I find out why a locale uses 12 or 24 hour time in Java? 3 I found this: if (android.t…… -
javax. net. SSL, HTTPS client and close_ notify
Using javax net. Simple netty implementation of SSL HTTPS server with self signed certificate The server is started, a…… -
Java – * * busted * * how to use sun misc. Unsafe speed up byte [] lookup?
I'm trying to use unsafe to iterate memory instead of traversing the values in byte [] Use unsafe to allocate memory b…… -
Java – JSP progress bar
Is there a simple way to implement the progress bar in JSP Basically, I have a JSP page to go to the servlet that call…… -
Java – we can create runnable objects as its interfaces
I see a sample code that uses the new runnable (), which is an anonymous inner class Runnable runnable = new Runnable(…… -
Java – ideas for an alternative to ORM RDBMS?
I am currently developing proof of concept for alternative data storage The reason why I need to enhance a webapp that…… -
Java – what should I use to display game graphics?
I have a game system, but I don't know how to display it I'm making a vertical shooter game. I've written methods for …… -
Concurrency – printing to stdout results in blocked goroutine runs?
As a stupid basic threading exercise, I've been trying to implement sleeping barber problem in golang It should be eas…… -
Drools – gets the Java. DLL when the activate method is called on the taskclient lang.NullPointerException
Exception getting null pointer when calling activate method on client object This is my code @RequestMapping(value="/l…… -
Multithreading – how to avoid threading?
I've recently read a lot about how writing multithreaded applications is a great pain, and I've learned enough about t…… -
Timer error Java lang.IllegalStateException
I tried to display a tag in JRE 8, saying that everything is only 3 seconds, because I can't use datepicker in JRE 7, …… -
Java – best practices for using JFrame constructors?
In my two Java classes and the books we use in them, the GUI using code involves a lot of JFrame constructors The stan…… -
Java – duplicate classes when weaving dependencies using maven AspectJ
We are using maven AspectJ plug - in to build our web application It uses "weave dependencies" to add aspects to some …… -
Java – lambda Metafactory variable capture
Use methodhandles How do you capture variables when you manually create Lambdas such as lookup, methodhandles, methodt…… -
Java – is it possible to inherit and modify the final class of bytecode in some way?
Can I inherit the final class using bytecode operations? Solution Yes, No You can use bytecode operations to change th…… -
Java – how to declare a function parameter to accept the thrown function?
I defined a function in kotlin: fun convertExceptionToEmpty(requestFunc: () -> List<Widget>): Stream<Widge…… -
Java – using thread Sleep() limits the frame rate
I'm making dynamic wallpaper, so don't worry about physical collision I just want to keep the frame rate as smooth as …… -
Java – Maven template plug-in?
I've seen it. I can't seem to find a separate Maven plug-in. People can use it to generate Maven files I've seen sever…… -
Is there a Java alternative to prefuse being developed?
The prefuse toolkit has not been updated since 2009, and the last build began in 2007 Is there any other Java visualiz…… -
Java – any good reference for jqom?
Apache jackrabbit includes some database / archive query mechanisms called jqom Where do you start to understand what …… -
Java – Model View Presenter and composite view
I try to follow the MVP (especially passive view) pattern in Java Swing UI applications The basic design of the applic…… -
How to ensure that Java programs use UTF-8 encoding
I recently found that relying on the JVM's default encoding can lead to errors I should explicitly use specific encodi……