包含标签：Java 的文章
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Java – you cannot use getdeclaraedfields() to retrieve fields from Scala classes
I'm trying to use Scala's Java library (johm) and notice that when lib tries to use something like model getClass(). G…… -
Java – exclude packages from Proguard
In Proguard How to include certain packages after excluding parent packages from CFG: For example: -keep com. myapp.**…… -
How do I mark Java methods as “must use results” for static analysis?
When compiling C or C with GCC, you can mark functions with attributes ((warn_unused_result)). If you call a function …… -
Java – instance level access control in Apache Shiro
I found a flexible security framework Apache Shiro I successfully realized authentication and authorization with Shiro…… -
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 – unexpected action of light source in the room
I've written several Android apps, but this is my first time using 3D programming I created a room (4 walls, ceiling a…… -
JPA – the difference between the methods of ‘detach’ and ‘Remove’ entitymanager
I want to know what is the real difference between em.detach (entity), em.remove (entity) and using jpql requests: em.…… -
Java: how to parse XML in E4X?
I wonder if there is a way to parse XML using E4X, or something like E4X Does such a framework / library exist? thank …… -
java – NoSuchMethodError：com. google. common. base. Stopwatch. createStarted()Lcom / google / common / base / Stopwatch
My app is throwing nosuchmethoderror: com google. common. base. Stopwatch. Createstarted() LCOM / Google / common / ba…… -
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…… -
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(){ …… -
Two java files, in the same directory, one accesses other classes / S?
I tried to grant one Java file to access another Classes in java files I want to do this on the command line For examp…… -
JAXB annotation – mapping interface and @ xmlelementwrapper
I encountered a problem with the JAXB annotation of a field, which is a list and its generic type is an interface When…… -
Java – libgdx gets the duration of the music
I tried to get the duration of music in libgdx I'm not talking about: getPosition(); What I want is the duration of th…… -
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 …… -
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…… -
Unit testing – how to use JUnit and Hibernate effectively?
I want to use JUnit to test hibernate code, such as insert, update, delete Methods and transaction management But I do…… -
Java – Jersey 2 generates WADL schema using method parameters
I am using Jersey 2 and want to generate WADL architecture <resource path="/addItem"> <method id="addItem…… -
Java – only one parameter is required in Apache commons cli?
I just want to know if there is any method in the Apache commons cli library that specifies that a parameter must be p…… -
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 – 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…… -
JPA – how do I change the eclipse link in glashfish 4.0?
I want to change eclipse link from 2.5.0 in glashfish 4.0 0 to 2.5 1. I have downloaded bundled downloaded and replace…… -
java. Lang.noclassdeffounderror: javax / mail / messagingexception unresolved
I'm trying to javax Mail jar was added to my classpath, but I received this error: java.lang.NoClassDefFoundError: jav…… -
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…… -
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…… -
Java – how do I read / write raw hexadecimal bytes from I / O streams in Bluetooth chat?
I am developing an application based on Bluetooth chat sample code I need to be able to write a byte array containing …… -
In Java 8, how to get an int array from a stream without using foreach
How to convert stream < int [] > into int [] without using foreach? final Stream<int[]> stream = foos.stre…… -
How do I convert a 2D list to a 1D list using streams?
I tried this code (the list is ArrayList < list < integer > >): list.stream().flatMap(Stream::of).collect(…… -
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…… -
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…… -
Java – A4J: commandlink stops working after rerender
I created this test case to isolate my problems Once the Ajax update is polled, the A4J: commandlink operation will no……