Recent Posts
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Java – find the number of required items in the list?
Design an algorithm, given the list of n elements in the array, find all the elements that appear more than N / 3 time…… -
Java – is there a tool to replace the passed Excel files back and forth and merge them?
Some legacy software relies on downloading multiple Excel files, merging the contents, sending them back, making some …… -
Frequency control in Java
Is there any class in Java that can control audio I have found the class composundcontrol through Javadoc, but it is a…… -
javax. net. ssl. Sslhandshakeexception: fatal alert received: error in handshake APN
I'm trying to send a push notification to iPhone using java PNS, but I received the following error javax.net.ssl.SSLH…… -
Java – JAXB schemagen ungrouping error
I am using JAXB to generate XML schema from my java class, so that other developers can easily create class instances …… -
Java – time zone and formatted date for Grails issues
I hope someone can help solve this very annoying situation. I find myself with Grails & date and time zone as my u…… -
Java – HQL “in” statement is not applicable to @ elementcollection
I have a class collection property with @ elementcollection and @ enumerated (enumtype. Ordinal) I may have done somet…… -
Java me – RTSP live broadcast from IP Camera
Can I use RTSP to view the real-time stream of IP cameras? Example URL: RTSP: / / public IP: 554 / 1363e66e mp4 Mp4 H.…… -
Java – JSR 303 – validate multiple internal lists
I am using JSR 303 and have written many comments, so I am familiar with the process of obtaining custom constraints I…… -
Java – should the entitymanager of JPA be requestscoped?
I am using JBoss 7 to develop web applications based on Java EE 6 class ForumServiceEJB { @PersistenceContext(type…… -
Java – hibernate reverse engineering uses the customreverseengineeringstrategy class to delete directory names
I use hibernate tool library and ant script to extend org hibernate. cfg. reveng. Delegatingreverseengineeringstrategy…… -
NetBeans java code completion is eager to please
Is the default behavior of code completion normal when editing Java? >If I import a package, after entering the fir…… -
JDBC batch creation in Sybase
I need to update a table with about 5 million rows Righht now I have 100 batches and it works normally But when I add …… -
JAXB unmarshalling using @ xmljavatypeadapters
I have three classes @XmlRootElement public class GeofenceParameter{ private GeofenceCenterAddress geofenceCenter…… -
Java – efficiency based on regular expression substitution
Which of the following is more effective and useful? value.replaceAll("['‘’`]","") value.replaceAll("['‘’`]+","") My …… -
Java – Generic runtime check for ‘instanceof’
I have an object named node < value > The objects nodeinternal < value > and nodelef < value > inher…… -
Java – Jena TDB: nested transactions
I want to rewrite the code that currently uses transactions However, according to Jena's documentation（ http://incuba…… -
What concurrency warnings should I get from findbugs?
I have the following code: import net.jcip.annotations.GuardedBy; import net.jcip.annotations.ThreadSafe; @ThreadSafe…… -
Java – Custom log4j scrolling appender
My class code is as follows public class LogLevelFilterFileAppender extends FileAppender implements Cloneable{ pr…… -
Multimedia playing in Java
I need to play multimedia files in Java I have studied JMF and FMJ, but these have not been updated for several years …… -
Java – stop the full screen window to minimize joptionpane showMessageDialog？
code private MainApp() /* Extends JFrame */{ DisplayMode displayMode = new DisplayMode(800,600,16,75); ScreenM…… -
Java – use dto or value object patterns to calculate deferred load exceptions
It's just an architectural problem in the Java / Hibernate / spring / MySQL stack Should I use opensessioninview patte…… -
What is the appropriate way to create objects with one to many relationships using objectify and requestfactory?
What is the appropriate way to create objects with one to many relationships using objectify and requestfactory? I've …… -
How to solve javax. On heroku net. ssl. SSLHandshakeException？
I encountered sslhandshakeexception on heroku This application is not an SSL application But the application calls an …… -
Requires Solaris and Java continuous memory clarification
Background: We have a vendor - supplied Java application that has a somewhat large Java heap There is not much informa…… -
Java – how to merge grid cells in GXT
I wonder if I can merge cells in the GXT grid like this: I think I have to overwrite the renderer, but I can't find on…… -
Java – can I use parameter injection methods in spring?
From docs: <public|protected> [abstract] <return-type> theMethodName(no-arguments); Is there a solution to…… -
Java – Weka vs mahout recommendation engine
I look forward to proposing a collaborative filtering solution I am very satisfied with Java and found that Weka or ma…… -
Java – what is a cached string?
What is a cached string? Or what is string caching? I've read this term many times at JNI, but I don't know what it is…… -
Java – extract the image into a blobstore
In my application, I need to do the following: I successfully uploaded, decompressed and saved the file @ blobstore, b…… -
Java – is there a utility or API to convert SMS shorthand abbreviations into correct sentences?
I'm creating an Android application that will convert SMS text messages through the TTS API This works when the text i……