包含标签：Java 的文章
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How to set up multiple items in JList using setselectedvalue?
I have a JList that is dynamically populated by adding to the underlying listmodel Now, if I have three strings, I kno…… -
Java – how does CompareTo work?
I know CompareTo returns negative or positive results related to one string and another, but why: public class Test { …… -
In Java, the playback framework handles and blocks I / O asynchronously
My application uses the play framework to handle rest requests I need to perform some potentially persistent blocking …… -
What are the benefits of Java EE – jrebel?
I've been checking jrebel According to their website: This seems to be the same as what eclipse, NetBeans and IntelliJ…… -
Java – project $$enhancerbycglib $$67a694bd appears in Hibernate
I have a document entity mapped many - to - one to the project entity When I call document During getproject, in the d…… -
cmd. exe powershell HashTable
Using CMD When exe is called, is there a method in the power shell that can pass hashtable as a parameter? I want to c…… -
How do I extend the test timeout in circleci?
I run some tests in circleci, some tests take longer, and then 10 minutes, because its UI tests run on headless browse…… -
Java 8 – ternary operator return function not compiled
Can anyone tell me why not compile? public class TestClass { private boolean doThis = false; protected void …… -
Java – Hibernate: standards and collections
I have a question about hibernate and criteria I have two classes: public class Place{ long id; String name; …… -
Java – stackoverflowerror when calling recursively
The problem is a strict theory, but I can't find the answer Consider this short procedure: public class SBtst { i…… -
Java – cross reference and garbage collection
There is an extensive object graph application The graph mainly consists of a set of subgraphs connected to the rest o…… -
Java – spring security configuration error: beans have the same ‘order’ value
I have a web application in which I implement spring security, my spring security XML is <?xml version="1.0" encodi…… -
Java – JSP El: dynamically create attribute names
See the English answer > how to get value of bean property when property name itself is a dynamic variable1 I have …… -
Java – make Jfilechooser display image thumbnail
I want to create a Jfilechooser with a thumbnail view of the image file So I subclass fileview and zoom in the method …… -
What is the reason for this strange Java behavior?
I want to test the '= =' operator on long. This is what I found: the following code: public static void main(final Str…… -
Java – how to set the direction of jtextarea from right to left (in joptionpane)
I have JScrollPane and jtextarea. I try to set the direction of jtextarea from right to left, so the text will start f…… -
Manage java version compatibility
I read "jdks are generally forward compatible, and jres are generally backward compatible" What version checks do java…… -
Java – redirect timeout after httpsession
I've been reading many posts on this topic, but I can't get a solution for my example I am using Java EE 6 and JSF 2.0…… -
Java – why mine Jar files run slower than programs in eclipse?
I have a java program that reads a large amount of input data from the database, operates on it, and then writes the d…… -
Java mimetypes filetypemap always returns the application / octet stream on the Android simulator
I'm trying to determine the mime / media type stored on the Android device (actually a virtual device used with the em…… -
Java generics: wildcards
So I'm reading generics to get familiar with these concepts again, especially when it comes to wildcards, because I ha…… -
Java – JUnit testcase object instantiation
Is a new (or different) instance of the testcase object used to run each test method in a JUnit test case? Or is an in…… -
Java – use Hadoop to process a large number of small files
I am using the Hadoop sample program wordcount to handle a large number of small files / Web pages (CCA. 2-3 KB) Since…… -
Java – I was studying robolectric, but something went wrong
I'm learning robolectric My project directory is, My unit test code mainactivitytest is as follows, package com.exampl…… -
Java – why do we have to use an intermediate variable (“unchecked”) for @ suppresswarnings?
Good afternoon, everyone, I wonder why public class test<T> { T[] backing_array; public void a(int init…… -
Java lambda expressions and logging
I'm reading the new features of log4j2, and there is a feature that can be enabled "Java 8 lambda supports lazy loggin…… -
Which Java RMI / RPC / IPC technology should I use?
I am developing a Java application that contains a server and a client (there may be multiple clients in the future) t…… -
. Net – using dapper ORM to improve the performance of SQLite batch insert
I'm using a desktop application that uses SQLite to batch insert tens of thousands of rows into the SQLite database I …… -
Java – what is the optimal initial capacity of a StringBuffer for input with a very variable length?
Good afternoon, everyone. I use Java Lang. StringBuilder to store some roles I don't know how many roles I want to sto…… -
The mockbean annotation in the Java – spring boot test results in a nonuniquebeandefinitionexception
I have a problem using @ mockbean annotation The document says that mockbean can replace beans in the context, but I g…… -
“Error: java_home is not defined correctly.” Building jikes RVM
When I built jikes RVM on Ubuntu, I received this error Any ideas? bin/buildit localhost production ---> Config: pr…… -
How to kill these code blocks in Java?
caller: switch (type){ case "creature": Creature returnActor2 = getNextCreature(); ……