包含标签：Java 的文章
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Java – Schrodinger error. Bufferedwriter will not write TXT unless checked manually
I'm a novice programmer - I can't find the answer to this question I have a problem with this part of the code: (file.…… -
Java standard for client / server communication
What is the "official" Java API for client / server or P2P communication? Java RMI？ Other network APIs?? Is this offi…… -
Handling large string lists in Java
I have a task that I have to pass billions of strings and check whether each is unique All lines themselves cannot be …… -
Develop and test the hybrid Google openid OAuth using openid4java on localhost
I'm trying to implement a hybrid Google openid OAuth protocol to identify my users and access their Google calendar da…… -
In my java code, is the key sonarlint question s1166 a false positive?
SonarLint 1.0. 0 for eclipse marks a key problem in my code, and I can't understand why and how to solve it Is this re…… -
Java – override constructor
I'm very confused about overriding constructors The constructor can't be overridden is the result I got when I searche…… -
Java – a strange way to pass parameters to methods
I was browsing the Java API code for exchange web services and saw the design choices of the methods developers passed…… -
Java – Marshall with xjc creates nested classes
<ProductInformation Context="GL"> <ProductInformation Context="GL"> <Assets> <Asset ID="assetI…… -
~ 1s delay control application: is this applicable to Java?
In my work, we recently completed the system architecture for controlling applications, with a maximum delay of about …… -
Java – how to ensure FIFO execution order in ThreadPoolExecutor
I use this line of code to create a ThreadPoolExecutor: private ExecutorService executor = new ThreadPoolExecutor(5,10…… -
Java compatible cksum functionality
Is there any library / code in Java that computes the 32-bit CRC of the byte stream in a manner consistent with the ck…… -
Java – can multiple categories be excluded from JUnit 4?
What I want to do is as follows: @RunWith(Categories.class) @Categories.IncludeCategory(Small.class) @Categories.Exclu…… -
Java – additional properties of spring
For jQuery mobile, I need tags, such as: <form action="..." method="get" data-ajax="false"> <!-- Fields -…… -
Minimize application data memory overhead in Java processes
I need to store a lot of data (objects) in memory (for calculation) I just want to know if there are any libraries for…… -
Java – check for link corruption
I try to use java to find all broken links in web pages This is the code: private static boolean isLive(String link){ …… -
Java – the best way to authenticate users in Web Applications
I'm looking for ways to authenticate users in web applications, but the main web applications don't need to handle pas…… -
Can “atomic” interrupt checking be performed in Java?
If you use the following "idiom" interrupt in Java, for example, from this answer while (!Thread.currentThread().isInt…… -
Java – use ant to execute absolute paths instead of relative paths
My ant script has the following code snippet It works well: <exec executable="C:\test\foo\programName.exe" /> Bu…… -
Java – how to avoid resetting fileuploadfield at the end of a request in wicket
I have a wicket form with fileuploadfield and more text fields Verification of correctness fails when required fields …… -
Java – why do fuzzy errors occur when using varargs overloads of primitive types and wrapper classes?
See English answers > ambiguous varargs methods4 Case 1 public class Test { public void display(int a) { …… -
Java – libgdx changes the color of the texture at run time
In a game made with libgdx, I have a textureatlas in which I store all textureregions for player animation By default,…… -
How to inject @ named bean into JUnit test
I'm trying to inject @ named bean into JUnit test This applies to my EJB module, but the same method in my war module …… -
Entity Framework – Entity Framework optimistic concurrency exception
Should I maintain the timestamp property on my model class to enable optimistic concurrency for data updates and delet…… -
Java – maven – cannot activate a configuration file in a multi module project
I have encountered some difficulties in configuring our project with Maven and need some help:) For example, I have a …… -
Equivalent to computeifabsent in Java 7
Is there any way to run a piece of code only when there is no key in the concurrenthashmap and save the results of the…… -
Java – how to make the callable task submit to executorservice timeout
I submit the callable task (using submit()) to the implementation of executionservice Occasionally I seem to encounter…… -
Java – xStream serializes null values
Suppose I have class Student { String name; int age; String teacher; } then: public class App1 { public static …… -
Java – use the domain alias account in appengine to send e-mail
I created an App Engine Application owned by x@foo.com. Foo. COM is a Google App account I've also added bar to the Go…… -
Should variables always be declared using interfaces in Java?
People often see the suggestion that variables should be declared with an interface rather than implementing a class F…… -
Java – how do WhatsApp and instant messaging applications run in the background without persistent notifications in Oreo?
What did I learn from stack overflow and Android documentation Unable to create background service for continuous task…… -
Use event listeners as Java 8 stream sources
Fast cleaning Can a traditional event listener be refactored into a Java 8 stream so that the listener event becomes a…… -
Java – Model View Presenter and composite view
I try to follow the MVP (especially passive view) pattern in Java Swing UI applications The basic design of the applic……