包含标签：Java 的文章
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java – DiscriminatorFormula
If I have a table and I need multiple columns as discriminators, my only solution is to use @ discriminatorformula? I …… -
Why does the compiler generate enums in Java?
I really understand that it cannot extend any class to implement enumeration, because it means multiple inheritance Bu…… -
How do I listen to changes in vertex selection in Jung 2?
How do I listen to changes in vertex selection in Jung 2? I've been trying to use propertychangelister and changeliste…… -
Java – invocationtargetexception: the plug-in (bundle) “org. Datanucleus” has been registered
I'm trying to follow dataoucleus tutorial for JDO I'm using maven, and I've followed the enhancer instructions provide…… -
Java – spring: how to initialize bean a after bean B is loaded?
I have a beana whose constructor requires beanb Is there a way to do this? Another way is to call BeanB. after all bea…… -
Java – JTable and custom tablemodel
I try to implement a JTable on the Java GUI, which can fill in the values in the file and allow the user to modify eac…… -
Java colored character GUI
I'm making a GUI dictionary program and need to highlight letters in each displayed word I want to know how to do this…… -
Java UDP sockets – data left behind on the server side
I'm using UDP sockets to implement a very basic server - client model in Java, and I encountered a very strange proble…… -
Java: string length when displaying square root using Unicode outline?
In Java, I created a string using Unicode and outline because I tried to display the square root of the number I need …… -
Java – use clickhandler with elements
I need to add an anchor with a specific clickhandler to the element How can I solve this problem? Element th = DOM.cre…… -
Java – disable the int spinner plus button
The following code is very useful when the user allocates the total number of statistical points I allocate However, I…… -
Java – jsup cannot get the complete content from the web page [no error / exception, but some content is missed]
I'm trying to get content from the following page using jsoup: http://www.exchangeandmart.co.uk/used-cars-for-sale But…… -
Java – how does atomicinteger work?
I don't think threading is such a difficult sigh if(++threadcounter==3){doSomething(); threadcounter =0;} I find this …… -
Java – how do I replace multiple items in a list?
I added a few characters to the list to replace it with a string Here they are: List<Character> list = new Array…… -
java – Bamboo sonar. Dynamicananalysis = reusereports = 0% rule compliance
Bamboo can be used for continuous construction, but we want to use sonar for quality index tracking Unit test pass / f…… -
Java – Android custom view can only call OnDraw once
I made a custom view, which should animate the points on the background according to some external data (like the char…… -
Java – how do I extend the margins of the eclipse source formatter?
Whenever I use source > to format in eclipse, it contains lines starting at line 80 But my program has many long li…… -
java. lang.ClassCastException：java. Lang. integer cannot be cast to Java lang.Double
I'm running into a problem compiling this code, which gives me an error, Java Lang. integer cannot be cast to Java lan…… -
Java – eclipse no longer starts
Eclipse has worked well as long as I remember, but now it refuses to start The log file in the workspace displays the …… -
Java – spring hibernate SQL Server connection failed
When I use the combination of spring, hibernate and SQL server, I receive the following error 19:17:09,137 ERROR [org.…… -
java. util. Calendar WEEK_ OF_ Year provides 1 for 365 and 366 days
An attempt was made to find the week for the given date Question: December 29, 2012 = week 52 December 30, 2012 = week…… -
What is the cause of this compilation error using java generics and reflection?
I have a generic method that should be similar to recursion, but call different instances of the method for each call …… -
Java – JPA, custom query and date
I am faced with a strange problem My search includes stack overflow and JPA and custom queries. I should specify param…… -
Java – collision detection using polygons
I wonder if anyone can give me an idea of how to implement the first class to define polygons and how to use this clas…… -
Java – JBoss application server: accessing deployed web applications from another machine
I have deployed my web application to JBoss standalone application server v7 1.1 upper But for some reason, I can't ac…… -
Java – Method Android OOP cannot be reused
In my application, I cannot reuse the methods I declare in the arabictutility class My intention is to use the Arabic …… -
Java – OK Which jar in class comes from the eclipse ide
I'm debugging something in the Maven project in Eclipse IDE. As usual, when I enter the line (F5), I reach a Java clas…… -
What values () do I see in the various CDI qualifiers in Java?
I see various references to values () in the @ qualifier definition An interface can allow enumeration, but I don't un…… -
Java – log4j filter out method
I want to turn off logging for a class method package com.mypackage; public class A { public static void aaa() { …… -
Java – jsessionid is set for httponly and secure
We have a Tomcat instance that serves HTTP through SSL nginx proxy We set the connector settings as follows: connectio…… -
Java – center jlabel in jpanels
I'm making a score retention plan, but I have a problem What I'm trying to do is have a JPanel containing two jpanels …… -
Java – extend log4j error email with more information
The web application I'm using provides more logs for users' data integrity problems I would like more information, suc……