Recent Posts
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Java – JUnit testcase object instantiation
Is a new (or different) instance of the testcase object used to run each test method in a JUnit test case? Or is an in…… -
Java – the difference between the final variable and the static final variable
I'm just studying the final data members. What's the difference between the final variable and the static final variab…… -
Java – unable to initialize class com sun. xml. internal. ws. fault. SOAPFaultBuilder
I use JAXB - impl - 2.1. In the Maven library 3.jar .. Everything looks good in the POM entry If someone encounters th…… -
Continuous integration – how do I test JavaFX 2 in a headless environment?
I tried to automatically test JavaFX 2 applications running on Java 7u6 through integrated JavaFX 2.2 As a next step, …… -
Java – can eclipse evaluate expressions dynamically?
In some Java ides (such as BlueJ and drjava), users can open an interactive window where they can type Java expression…… -
Java – when to create a custom classloaders?
Why do you need to create a custom classloaders? A real-world example would be great! Solution Application servers suc…… -
Java – Jersey 2 on JBoss 7
Has anyone successfully deployed Jersey 2 X and JBoss 7 x？ I try to use JBoss 7.1 1. Deploy Jersey 2.5, but encounter…… -
Java – class as function parameter
I have a function to filter the list of some values. It uses instanseof to construct: public static List<View> g…… -
Java – find a combination of alphabetical and natural order (also known as user rational sorting)
I think it's easy to find premade, but it seems that any solution I find online can only solve part of the problem I w…… -
Async await – Babel eslint: typeerror: cannot read null property ‘range’
I use Babel eslint to decorate / fix my code It worked well until I wanted to use some es2017 async waiting to find ov…… -
Java – represents overloaded methods in UML
I tried to create a UML diagram representing some java code In class, I have an overloaded method As far as I know, th…… -
Java – a method that uses private members or public accessors
I realize that this may not be answered, but I'm looking for some guidance on whether to directly use public accessors…… -
Java – unable to import org.xml junit. Assert. AssertThat;
I can't import org. In my program junit. Assert. AssertThat. I use Ganymede and JUnit 4.8 one Solution Static import I…… -
Java – the queue is completely wrong. Cooperate with multiple consumers and producers
I want to simulate the following scenario: multiple users and producer threads are modifying some data establish Block…… -
The mockbean annotation in the Java – spring boot test results in a nonuniquebeandefinitionexception
I have a problem using @ mockbean annotation The document says that mockbean can replace beans in the context, but I g…… -
Java – why do we have to use an intermediate variable (“unchecked”) for @ suppresswarnings?
Good afternoon, everyone, I wonder why public class test<T> { T[] backing_array; public void a(int init…… -
Java generics: wildcards
So I'm reading generics to get familiar with these concepts again, especially when it comes to wildcards, because I ha…… -
Java – a fast algorithm for inverting ARGB color values to ABGR?
I am using intbuffer to operate the pixels of bitmap, but the value in the buffer should be aabbggrr and the color con…… -
Processing objects according to the implementation of interfaces in Java
I have been looking for design ideas to solve this problem in Java I'm using a library (I can't change it). For this e…… -
Java – set up multi-directional – Android
I am a novice in Android programming. I have a problem with direction I hope my activities can only be viewed in portr…… -
Java – what if you only reference objects from garbage?
Suppose there is an object a of class A, which holds a reference to another object B of class B This is the only refer…… -
Java – how to upload to S3 through pause / resume support?
I want to know how to upload files to Amazon S3 through pause and resume support? (via web browser) Is there a sample …… -
Java garbage collector and memory issues
I have a very strange problem with Java applications In essence, it is a web page using Mulan (CMS system). There are …… -
Java – how to add a text area on joptionpane
At present, I have a joptionpane When I click the button, I am executing the following line JOptionPane.showInputDialo…… -
Java – unable to start active resource $notfoundexception
I have published and run an application on Google play for several months Today, I received an error from a user whose…… -
Java case insensitive regular expression matching does not match the letter Ñ
Consider this procedure: import java.util.regex.Pattern; public class xx { /* * Ñ * LATIN CAPITAL LET…… -
Java – HTML 4 in JSF 2.1
I want to use the command: JSF < H: CommandButton > generate < input... > But I hope instead of generating…… -
Java Optimization: (hotspot / Dalvik) optimize the return constant of the final method?
Anyone can tell me whether hotspot or Dalvik is smart enough to inline call the final method that returns the constant…… -
JPA cascading persistent error
I have a one - to - many relationship: product category can contain many products This is the code: @Entity public cla…… -
Java – jax-ws client: maintaining sessions / cookies in multiple services
I use NetBeans to automatically create web service clients from WSDL files This is good, except that the web services …… -
Java – what is the optimal initial capacity of a StringBuffer for input with a very variable length?
Good afternoon, everyone. I use Java Lang. StringBuilder to store some roles I don't know how many roles I want to sto…… -
Java – I was studying robolectric, but something went wrong
I'm learning robolectric My project directory is, My unit test code mainactivitytest is as follows, package com.exampl……