Java
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Java – network quality metrics on webapp
Is there any way to indicate the current network quality of the client on the web application (some type of bar, simil…… -
Java – Maven has the same properties for each profile
I am faced with the Maven attribute of each configuration file I have two profiles, each with the same attribute 'prop…… -
Java – can I pass parameters to enum values?
Suppose I have an enumeration defined as follows: public enum Sample{ // suppose AClass.getValue() returns an int …… -
Java – can spring / JPA / Hibernate use simple JDBC compatible drivers?
We have an application that uses the spring container on the server. It uses EJB 3 entities and hibernate to persist t…… -
Java – streaming remote files into file objects
If someone knows how to stream remote files directly to file objects, it is not necessary to temporarily store files o…… -
Java – groovy classes are not collected, but there are no signs of memory leaks
I have a Java class that dynamically reloads groovy classes using a custom class loader. I see some strange behaviors.…… -
Java – how to index and search numbers in Lucene 4.1
In my 3.6 code, I add numeric fields to my index as follows: public void addNumericField(IndexField field,Integer valu…… -
Java – integration with Jersey and spring grizzly2 2.X
I have successfully added grizzly v2 1.9 integrated with Jersey and spring But I'm trying to migrate grizzly to versio…… -
Java – does the custom Lombok extension require a Lombok package?
I've been trying to add custom comments to Lombok My starting point is the source code on GitHub I added a working com…… -
JavaMail and non ASCII characters in file names
I can send attachments with non ASCII file names in JavaMail, but I can't download them I specifically get Java. Java …… -
Call directly ` clojure lang.Compiler. Compile ` to AOT compile clojure from Java
Use clojure lang.Compiler. Is it legal for compile to compile clojure from Java? Our Java application is used to pass …… -
Javacv uses ffmpeg to capture frames
I created a class to capture frames from video When a frame is captured, it is saved as a picture When the video is Wh…… -
How do I use libraries compiled for Java 7 in Java 6?
I'm developing a Java application and I need to use one called mybeans Jar This mybeans@ R_ 419_ 2267 @ contains many …… -
How to use log4j in Java step by step to configure JBoss 6 Logging in X
Hello everyone, I'm a novice of JBoss, so I'm confused when setting up logging in JBoss 6.1 I Google it and know that …… -
Java – create a jar file and run it on the raspberry PI
This is a very common problem and it is possible to mark it as a duplicate, but it cannot be solved even after reviewi…… -
Java – ColdFusion memory leak when calling CFC directly without method parameters
We had memory problems for a long time I finally found out how to copy the problem, but I don't know what caused it or…… -
How to use SVM in Weka?
I am trying to use SVM classifier in Weka When I click on the libsvm classifier and try to train the model based on so…… -
Using the dropwizard to process long requests
I have a simple dropwizard service. I want a rest API to start a long-running processing task - including CPU and I / …… -
Java – character encoding of Jasper Report PDF format
I want to use custom fonts in Jasper reports Myanmar 3 is the standard font in Myanmar When exporting a report to an H…… -
Java – sonarqube – helps create a new language plug-in
I'm creating a new plug - in for sonarqube that allows developers to perform static code analysis on esql code Using m…… -
java – JBoss 7.1. 1 failed to start because of unexpected element ‘pool’
When I add a pool element, I receive the following error message: If I delete a pool element, how it works I have chec…… -
Java – call ggplot. Java from rserve 1KB blank PNG image
See English answer > ggplot's qplot does not execute on sourcing 1 When this code is executed in the R console, a c…… -
Java – restrict digital input jtextfield
I'm working on a Sudoku solver. I'm trying to limit the number of cells users can enter and can only enter numbers. At…… -
Java – is there any way to free memory during big data processing?
I have a database for storing invoices I have to use the information in all invoices to perform complex operations for…… -
Java – why is implicit conversion effective when reflection casting throws an exception?
Assume the following codes: @SuppressWarnings("unchecked") public static <T> T implicitCaster(Class<T> cl…… -
Java – Concurrent pairing
I'm looking for a Java concurrency idiom to match a large number of elements with the highest throughput Consider that…… -
Java array syntax substitution
See English answers > What does int []... Arrays mean in Java? 8 yes public void fn(Character[]...){} amount to pub…… -
Creating CSV files using java
I will use java to create a CSV file This is part of the code: try{ FileWriter writer = new FileWriter(sFileName)…… -
Java – asynchttpclient does not have onsuccess or onfailure running
I'm trying to connect the PHP script that means asynchttpclient to my website The script performs the HTML parsing of …… -
Java – why are topic messages not listed?
I want to ask a question about ActiveMQ I entered the active MQ administration page and found that queued messages wou…… -
Java – after a period of time, let the thread go to the last
I have a thread that may get stuck and continue running Therefore, after a period of time, I want it to stop executing…… -
Create a mongodb query in Java using $or $in
I am trying to write a java code using the mongodb API to create this mongodb query: { "$or": [{"prd" : {"$in" : ["123……