包含标签：Java 的文章
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Java – what is Class means a class name
. What does class mean, for example, MyClass class？ I understand that when you place the name of a class and the poin…… -
Java – how to verify the use of Guice scope in testing?
I have some tests. If some Guice ranges are used incorrectly, I want to fail For example, @ singleton should not have …… -
Java – what XML data types should be used for money / money?
After reading a few questions about Java data types for money / currency, I decided to use the int / long method to st…… -
Java – retrieves the size of the image in the file system
How to use @ L_ 301_ The size of the image retrieved from the local file system of 0 @ (usually JPEG, PNG, JPG and GIF…… -
How to quickly close unresponsive WebSockets in Java spring Tomcat?
I have a real-time application. The client uses WebSockets to connect to the spring framework server running spring bo…… -
Xdebug does not load Windows 7 64 bit PHP 5.4
I have PHP running on Apache I have downloaded what I think is the correct Xdebug compilation DLL for PHP version 5.4 …… -
Type cast array / vector in rust
What is the usual way to convert an array or vector of one type to another in rust? The desired effect is let x = ~[0 …… -
. Net memory model, variables and test sets: what is guarantee?
I Know. The. Net memory model (in the. Net framework; not compact / micro / Silverlight / mono / XNA / what have you y…… -
Automatic boxing should be avoided in Java
I'd like to ask if automatic boxing should be avoided in Java Because some methods need a primitive type "double", but…… -
Java – the best way to copy from one array to another
When I run the following code, there is no copy - what did I do wrong? In addition, is this the best / most effective …… -
jdbc – JT400. Jar disable login screen
Can someone help me? I have a small utility that uses jt400-6.7 Jar to the AS400 server Refer to the following code pr…… -
High end 2D Java (SE) graphics library [closed]
I am looking for a high-end graphics library for Java Standard Edition I know some fairly low-level libraries: AWT / s…… -
Java has about 100 parallel threads and memory management
I am writing an optimization algorithm to create about 100 threads At present, I start them once (for loop), and then …… -
Java – why Maven war plugin failed web XML fails if I configure it without failing in the missing web xml？
This is a challenge: Why did this build fail? I have configured Maven's Maven war plugin, which will not be in a missi…… -
Java – PGP data encryption for yubico OpenPGP smart card
I try to implement PGP encryption in Java applications based on yubikey Neo OpenPGP smart card applet It seems to be a…… -
Java – how to access method properties using spring AOP (AspectJ style)?
I need to accept some methods and their properties by using annotations as pointcuts, but how do I access them I have …… -
Java – find or insert based on Hibernate’s unique key
I'm trying to write a method that will return a hibernate object based on a unique but non - primary key If the entity…… -
The mysterious veil of Java EE 6 annotation inheritance
I use EJB inheritance in several schemes, and sometimes use annotations in superclasses, such as this general entityda…… -
Java – get the instance name of the websphere application server
My web service will run on JBoss app server or websphere application server For both of them, I need to know the insta…… -
Java / scala BigInteger paste
I have a problem with the Java BigInteger class: I can't paste a large value into BigInteger For example, suppose I wa…… -
Java – PGP data encryption for yubico OpenPGP smart card
I try to implement PGP encryption in Java applications based on yubikey Neo OpenPGP smart card applet It seems to be a…… -
What is a good tool for investigating the use of database connections in Java?
What is a good tool for investigating the use of database connections in Java? Developers are supporting a complex Jav…… -
Java – how to map the root directory of URL schema directory in servlet mapping in spring MVC?
<servlet-mapping> <servlet-mapping> <servlet-name>testServlet</servlet-name> <url-p…… -
Java & rabbitmq – queuing and multithreading – or couchbase as a job queue
I have a job distributor that publishes news on different channels In addition, I want two (and later) consumers to wo…… -
Array – use ‘iterator’ instead of ‘VEC’ as much as possible?
Is it considered a good style to accept iterator T when a function takes a series of values as parameters Not VEC t In…… -
Hash table – what is the point of a hash table?
I have no experience with hash tables outside of arrays / dictionaries in dynamic languages, so I recently found that …… -
Java collections and garbage collectors
A small question about performance in Java Web applications Let's suppose I have a list < rubrique > listrubriqu…… -
Java – dagger 2 component dependency
Is it possible to inject something into the module? I have 2 basic modules / components: @Component(modules = {OkHttpM…… -
Java – set Boolean value to false redundancy?
I have read several previous questions and answers [or very similar] on this topic, but none of them really solve this…… -
Why can javac infer generic type parameters of functions used as parameters?
In the following example, why can the compiler infer that in foo Foo. 0 is called for the first time in test() A gener…… -
Java regular expressions run slowly
I tried to use the darling fireball regular expression for matching URLs in Java, and I found a URL that led to the ev…… -
Java – poolinghttpclientconnectionmanager does not release the connection
I use spring to achieve the following: On the server, I receive data through the rest interface in XML format I want t……