包含标签：Java 的文章
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Java okhttp reuses keep alive connections
How to reuse HTTP keep alive connections through okhttp? My code example: public class MainWithOkHttp { static Ok…… -
Java – different methods for mapping spring requests to specific path variable values
@Controller @Controller @RequestMapping("/authors") public class AuthorController { @RequestMapping(value = "/{id}…… -
Java – which method works best when I traverse a list?
List<T> list = new ArrayList<T>(); List<T> list = new ArrayList<T>(); 1 method: for(int i = li…… -
Java – the class ref in the pre validation class resolves to an unexpected implementation
I am using Android studio and developing the xposed framework module Most of my users can use my application normally,…… -
Why can’t I programmatically close the dialog on JavaFX?
This code example shows but does not turn off JavaFX on JavaFX scene. control. Dialog： Dialog<Void> dialog = ne…… -
Java – debug in GWT 2.7 super development mode. Is stacktrace missing?
I just got from GWT 2.5 1 migrate to 2.7 and use superdev mode for the first time com.google.gwt.event.shared.Umbrella…… -
Java – disable spring security authentication in specific methods
I use spring security 4.0 on my application I have a registration page in my application and I want to exclude this pa…… -
Java – when my application is in portrait, use the camera in landscape
I have tried various ways to achieve the behavior I want, but there seems to be no work My application is locked in po…… -
Java – the compiler says the return statement is missing, but I already have 3
It's strange My compiler says I missed a return statement, but I already have three public int tortoiseMoves() { i…… -
Convert a string into a decimal number with 2 decimal places in Java
In Java, I try to parse a string of formats "####. ##" into floating point numbers The string should always have 2 dec…… -
Java – LL1 Boolean operator grammar implements a recursive parser
This is a small piece from the original syntax, and I have to implement the correct parser for recursion We must remov…… -
Java – type set is not universal; It cannot be parameterized
My eclipse faces this strange problem Type set is not universal; It cannot be parameterized with the parameter < in…… -
JavaFX tableview does not display content
I'm trying to insert some values in tableview, but it doesn't display the text in the column, even if they are not emp…… -
Java – simulation server for spring OAuth endpoint
I'm trying integration testing to see how my registered endpoint behaves when it fails My registered endpoint is an AP…… -
Java – C: why objects are passed by value
In Java, all variables containing the appropriate object are actually references (i.e. pointers) Therefore, method cal…… -
Java – how do I evaluate this equation?
I think it's very self explanatory in the code Obviously, I don't evaluate the same thing over and over again, it's ju…… -
Java – errors occur when a simple spring startup project contains many third-party jars
Can I use the API from one of my own jars without including its dependencies? I created an independent Maven project (…… -
Java – no gradle dependency created in the gradle cache?
In my module In the dependencies of the gradle file, I have the following: dependencies { compile 'org.apache.cxf:…… -
Java – int error cannot dereference?
My constructor is wrong. I don't know how to fix it? I am a beginner of Java This is an example exercise I'm trying to…… -
Multithreading – clang thread safety annotations and sharing capabilities
When I use clang thread annotations, the following code generates a warning I'm trying to wrap boost:: shared_ Mutex a…… -
Java – how do I load all compiled classes from a folder?
I have a folder operator In this folder, I have compiled files (an interface operator and class 4 implementation opera…… -
Multithreading – is calling binaries such as LS or RM a bad Perl exercise?
I find Perl easy to do the following: print "File not found,valid files are:\n\n".`ls DIRECTORY | grep 'PHP'`; `rm…… -
How to solve the exception in thread “main” Java Lang.nullpointerexception error
See English answers > what is a NullPointerException, and how do I fix it? 12 java.lang.NullPointerException at two…… -
Java – why objectoutputstream Readobject() accesses MyClass readObject()
I'm reading the basics of Java io. I see that in order to use the custom writeobject function in a class, it must be d…… -
Which collection is used in Java?
I want to map integers to strings. They are one-to-one, for example: 60 : c 61 : c# 62 : d 63 : d# 64 : e 65 : f 66 : …… -
Java – what is the purpose of using reflection to modify strings?
I'm reading article, which says that Java strings are not completely immutable However, in the article's sample code f…… -
Java – the difference between a = B and a = a
In Java, I really want to know if there is a difference between using a = B; Or a = a, B Which one should I mainly use…… -
Java – why doesn’t Android clean up memory after completing the activity?
In my case, I have two activities called a (main activities) and B (children's activities) If I use Android memory mon…… -
Java – hosting private Maven artifacts in the GitHub repository
I use the following solution hosting a maven repository on GitHub to host a private Maven repository on GitHub I have …… -
Java – is JDBC secure?
I am a novice in JDBC. The new project requires me to use JDBC What I want to know is, Is JDBC secure? How to prevent …… -
Java – sqlnestedexception: unable to create poolableconnectionfactory (user ‘< >‘ @ ServerIP ‘denied access (use password: Yes))
I have an openshift site that tries to connect to an external MySQL server Here is my code so far public class BaseDAO…… -
Java – Grails overrides default email authentication
I found that Grails authentication also rejected some valid email addresses I opened a question on GitHub here Is ther……