Recent Posts
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Java – VTD XML internal XPath expression
I have an XML file like this <root> <test> <bla>test1</bla> </test> <test> …… -
Java – run runnable multiple times in completable future
I want to execute multiple threads, which will try to add to my custom list mylist at the same time, but I can't see a…… -
Java – traps in JDK 6
Are there any problems in JDK 6 that do not exist in previous versions? I'm interested in timestamp Some surprising ch…… -
Java Swing: customize everything – subclass JComponent or JPanel or?
Hiya – the fast one – does the subclassing of JComponent have any damage / value compared to JPanel? For me, if I'm ma…… -
Java – generic filter for enumerations
The following is my class public final class Test { enum Animal {DOG,CAT}; enum COLOR {RED,YELLOW}; class Meaningless…… -
Java – duplicate fields in JSON response
I used spring boot Jackson dependency and Lombok in my project. In response, I got duplicate fields because of undersc…… -
Java – Lombok annotation cannot be ignored – sonarqube
When I used the code coverage tool "sonarqube", I tried to ignore Lombok comments in my java project. I studied a lot …… -
. Net – ORM example using a single table instead of a single table for the entire hierarchy?
From http://blogs.tedneward.com/2006/06/26/The +Vietnam+Of+Computer+Science. Aspx start "Developers usually take one o…… -
Java – calendar #getfirstdayofweek() returns an incorrect value
I may ignore some incredibly obvious things, but why final Calendar calendar = Calendar.getInstance(Locale.GERMAN); Sy…… -
Java – Maven plug-in automatically generates setters / getters?
Is there a maven plug-in that can automatically generate setters and getters using the corresponding Javadoc? I know e…… -
. Net – ORM example using a single table instead of a single table for the entire hierarchy?
From http://blogs.tedneward.com/2006/06/26/The +Vietnam+Of+Computer+Science. Aspx start "Developers usually take one o…… -
Can the Java / Scala / etc code tell Tomcat when to run it?
I have my webapp data in a database that can be accessed in different ways from different places There is no common co…… -
Java：SelectionKey. Is attach () broken?
In my java NiO implementation, I cannot make selectionkey Attach () works Basically, once the clients connect (op_acce…… -
Java – why does JIT compile some methods at startup?
I am studying JIT behavior on a very simple code block: public class PlayWithAssembly { public static void main(S…… -
Java – I use generics, but not this class!
I tried to use Google collections to call this method to connect two arrays public static <T> T[] concat(T[] fir…… -
Java connection pool without JNDI?
I have a connection pool to access MySQL database from servlet I use JNDI to get the data source. JNDI is in my meta-i…… -
Java – what role does each node play in the linked list?
Why do we need to create a new node p.next for this every time Next allocation null? Isn't it always empty? What is it…… -
How to print this digital table to the console in Java?
A natural number n is required. I want to print to the console in this format: 1 2 1 3 2 1 …… -
Run a Java application as a background process
I have made an application using java When I install it on my computer... I want it to run as a background process rat…… -
The method filter (predict ) in Java – stream type is not applicable to parameters ((E) – > {})
How to set the value in Java 8 in the filter? I want to set emailid to null, where firstname is Raj How can I do this …… -
How to link conditional methods in Java 8
I have a spring security configuration method I want a specific method link ant matchers ("/ * * / * *") Permitall() o…… -
Java – unit testing using spring framework singleton beans
It is generally believed that singleton is not conducive to unit testing However, can an IOC container like the spring…… -
Java – seam using JSF and seam using GWT
Can anyone compare and contrast these two solutions? I know little about seam or JSF, although I am familiar with the …… -
Implementing IM platform with Java
If you create an IM platform in Java, will this be a better way to communicate between the client and the server? Plea…… -
Haskell (GHC) runtime memory usage or what I did wrong
I wrote a small program in Haskell, a special HTTP server, which is not much more complex than the following code What…… -
Java – draw a line between two points
Hello Solution In swing: Graphics g; g.drawLine(X1,Y1,X2,Y2); If you are drawing a JPanel, you usually put this code i…… -
. Net – mixed stored procedure business logic and orm
The company I work for has developed a large application based almost entirely on stored procedures We use classic ASP…… -
java. util. zip：putNextEntry
I'm trying to use Java util. Net to modify the file in the zip file Here are the most important parts I tried: Enumera…… -
Servlets – how do I specify filter priority in a Java Web application?
Hello, I hope I can define two such filters <filter-mapping> <filter-name>SecurityFilter</filter-na…… -
Java, wait for the child process to exit
Using Java's processbuilder, I'm creating a set of subprocesses I can use the waitfor () method in the generated proce…… -
Java – stability of Guice 3.0 beta
Guice 3.0 beta is currently in beta (November 2010) As a Guice 2.0 user, I am particularly interested in the new hiber…… -
Help Java hash mapping
Can someone explain what happened in the following code and how it ended with 36? thank you Edited by Amir rachum publ……