Recent Posts
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Multithreading – the QApplication thread is frozen due to another qthread
In my QT application, I created a qthread, which should perform some heavy computing tasks regularly The main Q applic…… -
Is there any library that provides a smooth way to build Java format strings?
The syntax of Java format strings may become complex, for example: "|%1$-10s|%2$-10s|%3$-20s|\n" Someone has created a…… -
Java – how to use the expectedexception rule to test multiple exceptions in a test?
There are questions about the usage of JUnit's expectedexception rule: As suggested here, the JUnit expectedexception …… -
java – Deflater. Deflate and small output buffers
I saw a strange situation, using java 8u45's small output buffer and Java util. Deflater. When the deflate (byte [] B,…… -
Java generic return type is not used in parameter
In the Java library, I encountered a method that uses a generic return type, which is not used in any way in the param…… -
Does Java – akka’s event bus guarantee message order?
I want to keep the sequence of events entering the bus The problem is that if this order is guaranteed, whether on clu…… -
Java – in Hadoop map reduce, will any class see the entire key list after sorting and before partitioning?
I'm using Hadoop to analyze very uneven data distribution Some keys have thousands of values, but most have only one F…… -
Java – spring boot jsr-303 / 349 configuration
In my spring boot 1.5 In the application, I am trying to configure support for JSR - 303 / JSR - 349 authentication I …… -
How do I store and reuse key pairs in Java?
I want to generate the key pair once and reuse it public static KeyPair generateKeyPair() throws Exception { K…… -
Java implementation of intervaltree deletenode
I need an intervaltree or rangetree implementation in Java and can't find an implementation with work deletion support…… -
Java – nginx: when nginx is used as the reverse proxy, can the response header be captured in the access log?
We use nginx as a reverse proxy to control and record access to clojure (Java) web service applications We can use ngi…… -
Java – JAXB and inheritance in Collections
How do I map (through JAXB in Java 1.6) collections to XML and XML, and where class mapping{ @XmlElementWrapper(na…… -
Java – shuffling array in multithreading
I have an array of size n I want to shuffle its elements in 2 threads (or more) Each thread should use its own array p…… -
Java – design problem: Reservation System
I have to design and implement a reservation system for the hotel I have >Array list of reservation Objects > ar…… -
The difference between kotlin and Java string is separate from regex
If we have a Val TXT: kotlin String =“1; 2; 3;” And like to split it into digital arrays, we can try the following met…… -
Java – is there a way to force eclipse to automatically clean up every run?
I'm developing and using eclipse to create an APK for Android, which also has an APK with C code So file My problem is…… -
Java – unexpected results using repast Simphony
I need to use repast Simphony as a simulator to develop the Java version of the iterative prisoner's dilemma The idea …… -
Hot deploy Java ear to minimize or eliminate application downtime on the server?
I heard that this is what javarebel does, but is there any other good way to deploy the new version of ear while allow…… -
jsf-2 – javax. faces. Facesexception: unable to parse the result of navigationcase
I'm at / template / template There is a template. On XHTML XHTML file <h:head> </h:head> <h:body> …… -
What is the difference between advisor and aspect in Java – AOP?
I'm new to spring AOP Based on my understanding, I have noticed that both Advisor (such as defaultpointcutadvisor) and…… -
Creating commands for terminal applications in Java
I'm new to programming. I'm creating an application that runs only on the command line I found that I could read input…… -
Entity Framework – deferred loading, deferred loading and Eagle loading in Entity Framework
What is the difference between these three types of loading? Can anyone explain an example? Different online resources…… -
Java – name based virtual host using spring boot
I am looking for the best way to host multiple websites developed using spring boot I have a public IP that points to …… -
Java – spring, notreadablepropertyexception and GlassFish versions
I am using a web application using spring MVC It's in GlassFish 3.0 It worked well on GlassFish 3.1, but it began to b…… -
Maven enunciate plugin on Java 1.8 is now removed from the latest JDK (i.e. Java annotation processing tool)
The question is how can Java 1.8 work with Maven enunciate plugin? Use the Maven plug-in org codehaus. Enunciate versi…… -
Java instantiates a class from a string
I have the following, public interface SuperbInterface public class A implements SuperbInterface public class B extend…… -
Java – how to implement Hough transform?
How to implement Hough transform on text image? I'm looking for pseudo code (which will eventually be in Java) Here ar…… -
Dormancy – trying to understand the importance of the owner of a one to many relationship in orm
Although my question is specific to the way entity relationships are described in the play framework using hibernate, …… -
Java clipboard owner purpose?
I wrote a Java application that copies strings to the system clipboard Constructor use Clipboard.setContents(Transfera…… -
Java – maven, Jenkins – how to build projects into different test environments?
I have a java project with JUnit test, which needs to be run on different test environments (DEV, staging, etc.) throu…… -
What is the scope of Java – @ enabletransactionmanagement?
I'm trying to figure out where to put the @ enabletransactionmanagement annotation in the right place in the case of m……