Java
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Java – real time thread synchronization with normal threads
How to synchronize a real-time thread with a normal thread in Java? For example, real time threads that calculate cert…… -
How to handle exceptions when instantiating class objects
java version "1.7.0_45" java version "1.7.0_45" Hello I'm initializing class methods in the constructor However, the n…… -
Converting classic nested for loops using java 8 streams
See English answers > Cartesian product of streams in Java 8 as streams (using streams only) List<Card> deck …… -
Java – field lookup method of spring data repository
I have two entities, one user and one registered user The registered user has a field of type user I think there is a …… -
How do you get the mantissa of floating point numbers in Java?
I'm trying to get the mantissa of a floating point number (just for learning), but it doesn't work as expected Say the…… -
Suggestions for good java build tools are well integrated with eclipse
I work in several modules (about 10 at present) of a small team (3 people) The compilation, integration and management…… -
Java – how to use spring data to interact with elastic search aliases
Hi, I'm using elastic search for spring data The domain structure of my project is constantly changing So I have to de…… -
Java – best practices for installing third-party libraries into a hosted Maven repository?
Suppose you have a project that uses a third-party library, such as Google's Analytics data API (gdata), which does no…… -
Java – JNA catch exception
I have a quick question about handling exceptions thrown by the Library under JNA JNA receives an invalid memory acces…… -
Java – GWT and guava issues
It's hard for me to get GWT to work with guava I added guava-r09-gwt.net to my classpath Jar and < inherits name = …… -
Java – how to use the web XML contains additional configuration files
I need to define many servlets, but I don't want to use them on the web Write all configurations in XML I can define s…… -
Can I use them in Java code to take advantage of kotlin’s coroutines?
What is my goal? My goal is to be able to use kotlin's coroutine system in Java I want to be able to pause execution f…… -
What are the Java system classes?
When I read some documents about assertions, I found that: java -ea -dsa Which is the system class? Solution According…… -
Java Generics Pass . Class reference
I need to call a super constructor that requires me to pass a generic type Class reference How can I achieve this in J…… -
java. lang.NoSuchMethodError：org. springframework. http. MediaType. getCharset()Ljava / nio / charset / Charset
When I tried to run my TestNG test through ant, I got Java lang.NoSuchMethodError：org. springframework. http. MediaTy…… -
Java – how to identify anonymous inner classes in notserializableexception
Trying to debug the application in NetBeans received the following error message: During debugging, I have to insert "…… -
Version control – advantages and disadvantages of version control Javadoc
I'd like to know whether to submit Javadoc files to my project's SVN repository I've read about SVN good practices, in…… -
Java stream – collection combiner
Why the following codes: StringBuilder sb22 = IntStream .range(1,101) .filter(x -> x > 50) .@R_91…… -
Java – syntax error on the expected token variabledeclaratorid after this token
In the next line, I get "syntax error of the expected token variable declaration after this token" listAq = new AQuery…… -
Java – symbol class onclicklistener not found
I'm a novice in Android development This is my problem Anyone can help me with this. I've been looking for a solution …… -
Java – will The war file deployed to Tomcat 8 works normally in the IDE, but when I deploy to my VPS, I lose all JS and CSS
I have a spring boot application When I started running Tomcat 8.0 in my IntelliJ IDE_ I have no problem. It looks gre…… -
Java – extends multiple classes
I know that Java does not support multiple inheritance because it does not allow multiple classes to be extended I jus…… -
Java – parsing of external (third-party) beans
I know it's still not very popular because the specification was released a few months ago I haven't "installed" weldi…… -
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……