包含标签：Java 的文章
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Java – what is the difference between int and integer in this script?
import java.util.Arrays; import java.util.Arrays; import java.util.List; import java.util.ArrayList; public class arr…… -
heroku – system. Properties and Java version
I wanted to deploy my java 7 application to heroku, but I encountered some problems with the Java version I added syst…… -
Java – place the application icon in the Android project
This is a stupid question, so I'm sorry. If I was asked before but I can't find the answer, I'm not even sure whether …… -
Java – get arrayindexoutofbound: 1 exception
I try to parse a string and store it in a string array When I try to parse the string "Log1", I can parse it Run the f…… -
Javafx-2 – what is this public API in JavaFX that needs to be clarified?
I am very concerned about the term public API in JavaFX speakers >What is a public API? What should it mean? > I…… -
Java – how to delete all child rows when deleting a parent using Hibernate?
I have two tables // Accounts @OneToMany(mappedBy="accounts",cascade=CascadeType.ALL) @Cascade(org.hibernate.annotatio…… -
How do I add subcomponents and new properties to a custom JavaFX control?
I want to create a new JavaFX component and use it in fxml How do I define the usage possibilities and subtypes of thi…… -
Java – wicket dropdownchoice cannot use propertymodels normally
I've been trying to debug why my dropdownchoice is just a simple form. Only dropdown and a submit button don't work pr…… -
Java – JDK environment variable with Tomcat (Ubuntu 12.04)
In Ubuntu, I set up the JDK environment (java_home, jre_home), and Java version can be used >No Java defined_ Home …… -
Java – how to find the mysterious information being printed?
OK, so I have a very large java project. I have worked for many years (games, if you have to know) Unfortunately, a my…… -
Java – get ecpoint / ecpublickeyparameters from byte [] of bouncy castle
So far, I have managed to generate ecdhe pairs in the lightweight API of inflatable castle However, I encountered a pr…… -
Java – httpclient: determines the empty entity in the response
I want to know how to determine an empty HTTP response For example, I perform HTTP post on the web server, but the web…… -
Java – real time game development
I want to use libgdx to develop a real-time game for Android I need to update some variables even the dough game is no…… -
Java – jspg0122e: unable to parse El function in WebSphere 8
I am moving my web application from WebSphere 6.1 to WebSphere 8, and I encountered the following error in one of the …… -
Using java to read data from MySQL database
First, I'm using jtextfields to read the user's product name and product quantity For this product, I use SQL query to…… -
Create an empty object in Java?
How did you do it? It's so simple: Name myName = new Name(); I'm a little confused It should be a class without instan…… -
java. Lang. stackoverflowerror Why do I get stackoverflow exception here
I have a list of parent and child items displayed in a hierarchy I want to switch their extended property Therefore, i…… -
Java – using Otto, if I call it directly elsewhere, the method will only subscribe
I have a problem that one of my subscription methods will not be called for posts of the correct event type unless the…… -
Calculates the number of sequences in a vector
See English answer > How can I count runs in a sequence? 2 bin <- c(1,1,1) I'll get 5 I haven't found any existi…… -
Java – spring MVC with JPA data binding
My problem is to bind the data obtained by spring from the form to the JPA entity Strangely, if I don't look at bindin…… -
How to query bigquery through ODBC connection?
It would be nice to be able to use bigquery through ODBC I have used MySQL through ODBC, which allows me to switch to …… -
Java: implicit conversion of object at compile time does not work, but reflection can be used
The following codes are given: import java.lang.reflect.Array; import java.lang.reflect.Method; public class Test { …… -
Java – gradle build dependency throws classnotfoundexception
I am currently writing my first gradle build script to help build a simple java application from the command line Here…… -
Java – the functional interface of a generic method cannot be converted to a lambda expression
The functional interface of a generic method cannot be converted to a lambda expression public interface Pro{ publ…… -
Java – add directories to jars for inserting external jars or classes
I have a jar file, which is my application (built by gradle), and I want to add a directory. It is the "ext" folder of…… -
Does Java parallel flow use only one thread?
I am using the latest Java 8 Lambdas and parallel streams to process data ForkJoinPool forkJoinPool = new ForkJoinPool…… -
Multithreading – use omnithreadlibrary to write arrays that are slower in parallel than in serial
I am studying the implementation of differential evolution optimization algorithm and hope to speed up the computing t…… -
Java – when you call VaadinSession getAttribute in Vaadin 7, you need to lock it up.
I know it's necessary to call setAttribute (link), but what about getattirbut? Is it correct? public Object getMyAttri…… -
java – Selector. Close() close all client sockets?
I'm new to NiO sockets. I wrote a server using NiO sockets. Now I'm trying to write shutdown hook to ensure graceful e…… -
Java – Jersey resource with multiple paths
I am trying to migrate my resource naming from Portuguese (and singular) to English (and plural). I want to know wheth…… -
grails – java. Lang. illegalaccesserror: attempt to access class XYZ from class ZXY
I have a Grails application. If I start it through it, it works normally grails run-app In the early stage, I have dep…… -
Java – write lock to HashMap
I have an asynchronously updated HashMap I need to perform operations involving the map, which requires that the map d……