Java
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Accessing C constants (titles) from JNI (Java Native Interface)
How do I access constants defined in C header files from the Java side (through JNI)? I have a header file C_ header. …… -
Java – using connection pooling in JPA
I have a standalone JPA (hibernate) - MySQL application My persistence XML looks like: <persistence-unit name="JPAP…… -
Java – how to add parameters to a request from a containerrequestfilter
I use Jersey spring I have Jersey filter, which implements containerrequestfilter. I need to transfer objects in my je…… -
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 …… -
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 – 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 – 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 – how to print “Hello world” Complete life cycle
I studied compiler, operating system and computer architecture in graduate school But I want to see these concepts (le…… -
Java – why is it necessary to override hashcode and equals methods of HashMap?
See English answers > what issues should be considered when overriding equals and hashcode in Java? 11 Now I've rea…… -
Java – get interceptor parameters in struts 2
I have the following action mapping <action name="theAction" ...> ... <param name="param1">one</par…… -
Java – the best way to pass objects between classes in different threads?
I have a "runnable" class "a" and I use Java unmarshallers to create new objects The maingui thread attempts to access…… -
Java – what is the best practice for socket programming – do I turn it off or leave it open every time?
I haven't found a definite answer yet I have a client / server application in Java 7 The server and client are on sepa…… -
How to connect to gromy’s JMX faster
I use the Weblogic example: http://groovy.codehaus.org/Groovy +And + JMX connects JMX to groovy The problem is that th…… -
Java – publishes formdata objects using the input type and the file NullPointerException
I'm trying jQuery Ajax publishing using input type files and normal input types with text, and using request Getparame…… -
Multithreading – restart Delphi TThread throughout the application lifecycle
I created a class derived from TThread because I wanted to do something asynchronous, but in order to avoid creating a…… -
Java – string packed loop logic
My for loop is a bit biased for my string compression I've been doing this task for the past five days. I can't figure…… -
Java – cloud endpoint collection parameters
I'm using Google App Engine cloud endpoints. I'm trying to receive a collection parameter This: public List<Pair>…… -
JavaFX – spell check text in textarea
How do I spell check the text entered by users in textarea? Can this JavaFX component be implemented? Can I use the st…… -
Java – FileUtils. Java for large files Copyfile failed
I have a simple java application that tries to copy files over Wan (from Ireland to New York) I recently modified it t…… -
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 – 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 – 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 – 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 – enables existing spring batch applications to run on multiple nodes
We have an existing spring batch application, and we hope it can run on multiple nodes The scalability documentation f…… -
Java dateformat: how to handle “ST”, “nd”, “Rd”, “th”?
How to use some dateformats to parse such strings? As far as I know, there is nothing in simpledateformat Solution Try…… -
Java – try creating with strings
I found an interesting case when I used a string to create and check its hash code In the first case, I use the copy c…… -
Java – read data files into object arrays?
I encountered a problem reading files into an array of objects I created an IF statement to divide the data rows into …… -
Click the selenium Java button
I have a button: <input type="button" onclick="onOpenSessionClick()" value="Open device access"> But when I exec…… -
Java – joda time days since the era
I have a question, @ L_ 419_ The number of days since epoch returned by 0 @ library changes according to the date I en…… -
Java – use Apache httpclient to make rest calls with data and headers
In addition to mobile applications, I also need to integrate Kii mbaas services into one of my web applications I use …… -
Java – spring 3.0: “prefix” X “of attribute” Y “associated with element type” Z “is unbound”
My application worked well until this morning, but I began to receive the following error after renaming my NetBeans 6…… -
Java – how to use Weblogic to detect connection leaks in JDBC?
Is there any way to detect the connection leakage in the project without load test I am using WebLogic Server. Is ther……