Java
-
Is there a Java Translation Library working offline?
I really need to find a Java translation library that can be translated Solution For translating individual words, see…… -
Java – how do I format numbers in the expression language?
How do I format and output numbers (such as long or BigDecimal) in El? For example, I want to limit some decimal numbe…… -
Java – Maven: “error reading prototype directory”, not proxy
Command: mvn archetype:generate -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false -DgroupId=org…… -
Java – the difference between sha256 and RSA and sha256, and then RSA
What is the difference between using the following two methods to calculate a signature? >Use signature GetInstance…… -
What is the correct action to take when closing a window in Java / swing?
I wrote this test code in my customuipanel class: public static void main(String[] args) { final JDialog dialog = …… -
Java – “package should contain content type part [m1.13]”
I tried to write to an excel file, but I kept getting an error: According to my understanding, I missed a jar file Any…… -
JavaFX IllegalStateException when processing jfxpanel in swing
I just came across something strange about JavaFX and swing When processing a JavaFX panel that has been added to a JF…… -
Using classpathxmlapplicationcontext in a stand-alone Java class
I haven't touched spring yet I saw the following code in a separate java project in my system You can help me understa…… -
Java – why do anonymous classes access non final class members of closed classes
We know that the final local variables can only be accessed in anonymous classes. Here is a good reason: Why are only …… -
Java – PDF file download using BlockingQueue
I'm trying to download a PDF file using urlconnection Here is how I set up the connection object URL serverUrl = new U…… -
How to instantiate the Java Boolean wrapper class?
In Java, I can write code like this Boolean b = true ; It will work. I now have an object with a value of "true" How d…… -
Why does my java custom cell renderer not highlight when rows / cells are selected?
I have a custom cell renderer to wrap cells with words, so more content can be read This is the code: import java.awt.…… -
Java InputStream. Read (byte [], int, int) method, how to block until the exact number of bytes is read
I am writing a simple client / server network application to send and receive fixed size messages through TCP sockets …… -
Multithreading – dual locking mode in C 11?
The new model of C 11 allows multiprocessor systems to work reliably, wrt Reorganization order As Meyers and Alexandre…… -
Java – what version of JBoss am I running?
(as the question:) how do I know what version of JBoss I am running? I'm also curious about what version of Tomcat I'm…… -
Java – converts a list to a list (or any class that extends number)
I want to create a very general utility method to use any collection and convert it to a collection of user selectable…… -
Java – why does the LinkedHashMap class implement the map interface?
See English answers > Why do many collection classes in Java extend the abstract class and implement the interface …… -
How to transfer files between TCP server and TCP client in Java
I have implemented simple TCP server and TCP client classes, which can send messages from the client to the server, an…… -
Java – spring data – mongodb finds the nearest location around the route
I have a model that contains geojson points It is easy to find the closest spring data, but how to retrieve the neares…… -
Java – use reflection to access constructors from abstract base classes
I'm playing java reflection I have an abstract class base with a constructor abstract class Base { public Base( St…… -
JUnit – select the specific test run in gradle
I'm trying to solve our chaotic test run. Unfortunately, I've just graduated We currently have TestNG and JUnit, and I…… -
Java – restore the old style of NetBeans 7.2 bookmark navigation in any way?
NetBeans 7.2 changed the way bookmarks work Before Ctrl Shift and Ctrl Shift Move the focus up and down in the same fi…… -
Java – fail fast iterator implementation
There are similar questions, but not exactly what I want to ask This link says that its implementation exists in the a…… -
Java – how to use the string list in namedparameterjdbc template to get the result
Try spring JDBC I use this as a reference I'm trying to get an actor with the same name Running this code gives me the…… -
Java – remove the “Z” section from xmlregistry calender
When I like it below, GregorianCalendar calendar = new GregorianCalendar(TimeZone.getTimeZone("UTC")); calendar.setTim…… -
Avoid multiple if statements in Java
I have written such a method But I think it should be refactored private String getMimeType(String fileName){ if(fil…… -
How does rxjava’s observable “iteration” work?
I started playing with RX Java and reactfx, and I became very fascinated But I have dozens of questions and I keep stu…… -
How to use reflection to instantiate Java. Net using generics util. ArrayList
How to use reflection to instantiate Java. Net using generic classes util. ArrayList？ I'm writing a program that sets…… -
Java-8 – always use cube-java8 to get exception “wrong type of constant pool index”
I am designing a sample project for Java 8 dialect My problem is that I didn't get it running I always get the followi…… -
Java – use the eclipse compiler in Jenkins to get compiler warnings / errors
I want to display eclipse compiler warnings in my Jenkins job Has anyone tried to use the eclipse compiler in Jenkins …… -
Java – place instance variable declarations
I've seen some developers put instance variable declarations at the end of the class, although I mainly see them at th…… -
Java – convert e.printstacktrace() to use log4j instead
I'm new to log4j I don't want to display an exception stack trace in my log file, for example java.lang.IllegalArgumen……