Java
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Java – ooobeans dead What choice do I have?
Recently, I started exploring the office bean library. In other words, I tried to run a simple OOo bean example First,…… -
Java – instance level access control in Apache Shiro
I found a flexible security framework Apache Shiro I successfully realized authentication and authorization with Shiro…… -
How to get SOAP messages when using the client generated by axis 1.4 wsdl2java
This can be a simple problem for anyone with moderate expertise in Web services using Apache axis I have a web service…… -
Creating too many threads in Java
I use threads in my java application to get data in parallel (using network calls) I have a method (not in the thread …… -
JavaFX stopwatch timer
This is a simple stopwatch class for JavaFX. Set the style of the label object as needed package aaa; import java.tex…… -
Java – eclipse, jar export wrapper SVN file
How can I prevent this from happening? It is captured when I create the jar Files in the SVN folder Uncheck at the pro…… -
How to convert mouse position to character position in jeditorpane in Java Swing
I'm trying to solve a problem. I need to find a position in a text in jeditor pane according to the position of clicki…… -
Java – listchangelistener waspermutated block
The Javadoc of listchangelistener provides a template for handling changes But I don't know how to deal with permutati…… -
Does mixing SIMD instructions and multithreading reduce performance?
I am interested in doing a project on face recognition (using SIMD instruction set) But in the first semester of this …… -
Java – completable future usability and unit testing
I was learning java 8 completable future and finally got this All fists, what do you think of this line of code? I nee…… -
Java – args4j: how do I manually sort options in usage?
In args4j, I define the following options: @Option(name="-host",usage="host to connect") @Option(name="-port",usage="p…… -
Java – add image to jar
I want to set the icon to my JFrame I do the following: Image icon = Toolkit.getDefaultToolkit().getImage("src/images/…… -
Java 8 streams – collect potentially null values
I have the following code: private static <T> Map<String,?> getDifference(final T a,final T b,final Map<…… -
Java – why doesn’t the acquire () method in semaphores have to be synchronized?
I'm using java to enter semaphores and reading this article http://docs.oracle.com/javase/1.5.0/docs/api/java/util/con…… -
Error parsing string to date in Java
Yes, another Java date post:) My question: Simple standard code to test whether the insertion date is in the form of r…… -
How to use index for O (1) random access sort set
You need a string collection, in which the inserted elements need to be sorted or non repeated, and can be retrieved b…… -
Java – communication between two jpanels
I have this "main" panel (let's call it AAA) and borderlayout, as well as two panels (BBB and CCC): public class AAA e…… -
Java – why does my compiled class have its method local variables renamed?
I have a kitchen Jar file I need to modify one of its classes I decompile it with JD Then I modified toster Java file …… -
Java – can nested threads throw exceptions for parent threads?
I have a controller class and a monitor worker thread public class ControllerA { public void ControllerA(){ …… -
Java print string c equivalent
See English answer > java reflection: how to get the name of a variable? 7 #define printVar(var) cout<<#var&l…… -
Java – there is a faster method, and then StringBuilder can connect strings in up to 9-10 steps?
I have this code to connect some array elements: StringBuilder sb = new StringBuilder(); private RatedMessage joinMess…… -
Set java system properties without putting values on the command line
I have some java code that depends on the system attribute super secret. password. I need to set this property when ru…… -
If there is no body, won’t the while loops in Java check their conditions?
In this example, I have a simple JFrame that contains a JButton. JFrame bound with actionlistener The acitonlistener s…… -
Assembly – atomic Int64 on ARM cortex M3_ t
Since my compiler still doesn't support C 11 and STD:: Atomic, I have to implement it manually through ldrex STREX pai…… -
Java Network: Improvised socket / InputStream
I'm implementing an event - oriented layer on a java socket. I wonder if there is a way to determine whether there is …… -
Java – add additional path to exec Maven plugin
I want to add an extra classpath for exec Maven plugin <plugin> <groupId>org.codehaus.mojo</groupId&g…… -
Java – JPA @ entity inheritance
I have been studying JPA / Hibernate @ entity inheritance for some time, and it seems that I can't find anything to so…… -
Using AES to effectively encrypt files in Java
I am developing an application that should encrypt some small (less than 1MB) and large (about 500MB) files Solution S…… -
Java – shared disk with comps
I have a cluster with shared disks between different nodes How do I configure comp superscalar to consider this shared…… -
How to use JUnit to test the spring controller method
Hi, I'm new to spring and JUnit There is a method in my controller I want to write JUnit (getpersons ()) for this meth…… -
java – System. Console () returns null from eclipse, but the command prompt is good
When I use eclipse Helios system Console, it always returns null However, when I use it directly from the command line…… -
Override Java methods that require double arrays
Suppose I define the following Java interfaces: public interface A { public Double[] x(); } Then try to implement it……