Java 归档 - Page 362 of 655

Java – how to synchronize play services real-time multiplayer games

I'm using libgdx to develop an online version of the popular game pong I've started using Google's real-time multiplay……

Java

2019-12-22

Java 8 function interface assignment context

The question is about the allocation background of the functional interface – Predicate<String> p = String::isEm……

Java

2019-12-22

Java – where are the auxiliary courses in Guice jar?

I downloaded Guice 2.0 and 3.0 through maven, and I couldn't find the whole com. Com in jar google. inject. Assistedin……

Java

2019-12-22

Java – JSP view log file (e.g. “web tail – F”)

How to implement a JSP site containing a text area that displays the log files on the (Tomcat) server and refreshes au……

Java

2019-12-22

Java – how to correctly handle exceptions in JSP / servlet applications?

How to correctly handle errors encountered in servlets? Now, the application I inherited (using only pure jsp / servle……

Java

2019-12-22

Jsr-305 annotation replaces Java 9

So far, we have been using findbugs jsr-305 annotation (COM. Google. Code. Findbugs: jsr305), and everything including……

Java

2019-12-22

Java – why does LinkedHashMap maintain iterations of two-way linked lists

Because there is no internal and reasonable explanation in any thread >For insertion order, it's enough to maintain……

Java

2019-12-22

Java – why are variables not local in case statements?

I recently added another menu item to the Android Java application and was surprised that eclipse represents the varia……

Java

2019-12-22

Stanford’s POS tagger is used in Java

Mar 9,2011 1:22:06 PM edu.stanford.nlp.process.PTBLexer next Mar 9,2011 1:22:06 PM edu.stanford.nlp.process.PTBLexer n……

Java

2019-12-22

Java – how to index date fields in Lucene

I'm new to Lucene I must index the date field IndexWriter writer = new IndexWriter(FSDirectory.open(indexDir),new Whit……

Java

2019-12-22

Java – how to sort by count () in JPA

I am using this JPA query: SELECT DISTINCT e.label FROM Entity e GROUP BY e.label ORDER BY COUNT(e.label) DESC I did……

Java

2019-12-22

Java – Jersey client / jax-rs and optional (not default) @ queryparam (client)

I have a restful API. Its document says that a query parameter is optional and does not provide default parameters The……

Java

2019-12-22

Multithreading – you can cancel qfuture and report progress

The qfuture class has some methods, such as cancel(), progressvalue(), and so on These can be monitored by qfuturewatc……

Java

2019-12-22

Java – @ createdby how does it work in spring data JPA?

I used @ createddate on the entity attribute, and I saw it insert the date in dB I don't understand the purpose of @ c……

Java

2019-12-22

Java – constant warning when running Tomcat from IntelliJ

Suddenly, when I run Tomcat from inside IntelliJ, the output console is constantly bombarded by mail@ H_ 502_ 2 @ (ver……

Java

2019-12-22

Java asymmetric encryption: the preferred way to store public / private keys

This code generates a pair of public / private keys: KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA"); ke……

Java

2019-12-22

Java – JUnit test inheritance does not work

public abstract class GenericTests<T extends Number> { public abstract class GenericTests<T extends Number>……

Java

2019-12-22

Java – use the Apache httpcomponents client to sign AWS HTTP requests

I am trying to send an HTTP request to the AWS elasticsearch domain protected by Iam access policy I need to sign thes……

Java

2019-12-22

Java – inject null pointer

We try to refactor a project with Guice The idea is to bind all language interfaces to mixed objects such as French or……

Java

2019-12-22

Java – hibernate tutorial – where to place the mapping file?

I'm here to focus on Hibernate, an interesting tutorial: http://www.tutorialspoint.com/hibernate/hibernate_native_sql.……

Java

2019-12-22

Java methods that reference singleton objects at the same time

I have a question about multithreaded method calls in Java Suppose we have a singleton object whose class declaration ……

Java

2019-12-22

Java – shorten method / variable names?

Whether using long is considered a bad style, but descriptive method names such as "adjacetlocationsbystate()" if so, ……

Java

2019-12-22

Java – groovy version 2.4.0 for eclipse two

How to create a groovy project in eclipse and use a custom groovy library? I'm new to groovy and I'm confused about ho……

Java

2019-12-22

java – org. hibernate. Annotationexception: the referencedcolumnnames reference is not mapped to a single property

I encountered the following exception when mapping one-to-one between two entities The first entity embeds a composite……

Java

2019-12-22

Java – use selenium to handle pop ups

I have a situation where I click on the link page to open a pop-up window When the pop-up window is opened, the focus ……

Java

2019-12-22

Java – instantiationexception calls a class on newinstance for simple reflection?

I have an abstract class A, which is public abstract class A { private final Object o; public A(Object o) { ……

Java

2019-12-22

Java – string text, practice and reflection

I tried to find a third solution this question I don't understand why I don't print errors public class MyClass { ……

Java

2019-12-22

Java – how to avoid using exception flow control?

I was assigned a project to develop a set of classes that act as interfaces to storage systems One requirement is that……

Java

2019-12-22

Priority queue using Multimap – Java

I must use Multimap to implement priority queue I use Multimap in Google collections Multimap<Integer,String> mu……

Java

2019-12-22

Java – how to use spaces in the parameters of Maven 2 exec plug-in

Related questions: Maven exec plugin not reading configuration In my configuration, I need a parameter, which is a fil……

Java

2019-12-22

Setopaque (true / false); Java

In Java 2D, when you use setopaque, I'm confused about some true and false For example, I know that swing opera means ……

Java

2019-12-22

Java – interpreting type classes in Haskell

I am a C / Java programmer. The main example I use in daily programming is OOP In some threads, I read a comment that ……

Java

2019-12-22

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Java – how to synchronize play services real-time multiplayer games

Java 8 function interface assignment context

Java – where are the auxiliary courses in Guice jar?

Java – JSP view log file (e.g. “web tail – F”)

Java – how to correctly handle exceptions in JSP / servlet applications?

Jsr-305 annotation replaces Java 9

Java – why does LinkedHashMap maintain iterations of two-way linked lists

Java – why are variables not local in case statements?

Stanford’s POS tagger is used in Java

Java – how to index date fields in Lucene

Java – how to sort by count () in JPA

Java – Jersey client / jax-rs and optional (not default) @ queryparam (client)

Multithreading – you can cancel qfuture and report progress

Java – @ createdby how does it work in spring data JPA?

Java – constant warning when running Tomcat from IntelliJ

Java asymmetric encryption: the preferred way to store public / private keys

Java – JUnit test inheritance does not work

Java – use the Apache httpcomponents client to sign AWS HTTP requests

Java – inject null pointer

Java – hibernate tutorial – where to place the mapping file?

Java methods that reference singleton objects at the same time

Java – shorten method / variable names?

Java – groovy version 2.4.0 for eclipse two

java – org. hibernate. Annotationexception: the referencedcolumnnames reference is not mapped to a single property

Java – use selenium to handle pop ups

Java – instantiationexception calls a class on newinstance for simple reflection?

Java – string text, practice and reflection

Java – how to avoid using exception flow control?

Priority queue using Multimap – Java

Java – how to use spaces in the parameters of Maven 2 exec plug-in

Setopaque (true / false); Java

Java – interpreting type classes in Haskell

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