Recent Posts
-
Java – dynamic programming arrayindexoutofboundexception
I got this strange anomaly, I really don't understand why I tried debugging and found that an error occurred while run…… -
How do I initialize an input field without writing an IF statement?
I have a similar enumeration public enum Field { A,B,C,D,E ....; private Field(){ } } I have a class p…… -
Java – how to automatically resize JTree objects?
I try to make a JTree object dynamically resize when expanding nodes By default, the object area is constant, and when…… -
Java – can JBoss seam be used on applications that are not web applications?
I mean, can seam be used in back-end applications that only provide functionality through remote EJBs or web services …… -
Time – timed FORTRAN multithreaded program
I have a Fortran 90 program that calls multithreaded routines I want to evaluate this program from the calling routine…… -
Java – add custom attributes to JTree nodes
I need to store some data in the JTree node Can I add custom attributes to the node to save my data? Solution You can …… -
Java general problems
The following code compiles, but if I uncomment the comment line, it won't. I'm confused why HashMap does extend abstr…… -
Java – type conversion required for function calls, with short data type variables as parameters
Whenever I use byte or short data types as method parameters, I need to explicitly convert the values I pass to these …… -
Using Java as the Linux Shell Scripting Language?
I used the C / TC shell before instead of turning to python Now I want to integrate all shell scripts, GUIs, databases…… -
Java – use x = = y or (X-Y) = = 0 to control the problem of if conditions
My program includes the following code snippet, which is based on two variables temp Get (J1) and temp (J2) are execut…… -
Java EE – the JMS message to be redelivered to the queue
I use JBoss MQ in my application I am trying to process messages that are redelivered to the JMS queue Is there any wa…… -
How to use POSIX in Java_ spawn()
I inherited a legacy application that uses process builder Start() executes the script on the Solaris 10 server Unfort…… -
Java – how to store encrypted passwords in the database?
I try to store the password in the database in encrypted form with the help of JSP and servlets How can I do that? Sol…… -
“Change the modifier of ‘frame’ to ‘static’ in Java”
I was told by eclipse to change the modifier of my string variable to static I don't understand why I think I'm declar…… -
Java – private access with self-contained generics
Combining private field access with CRTP in Java seems to find a strange edge in visibility rules: public abstract cla…… -
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 – selenium 2 webdriver cannot find the link
I saw other problems about similar / same problems, but they didn't help me solve the problem: (. I logged in to the p…… -
How to determine the number of fields set on an object in Java
I'm not sure if I can do this, but I say I have this object: public class SomeObject { private String field1; …… -
Java – sockettimeoutexception: read timeout. How to solve it?
I have a swing application that reads HTML pages using the following command String urlzip = null; try { Docum…… -
Java – global memory counter, which is thread safe and flushed to MySQL every x increments
Can I create in memory counters that all servlets will use? This global counter will track the web page views of the w…… -
Java – use 2 RGB colors with alpha
When I combine two colors, I'm trying to get the final color (in Java), and the color at the top has alpha transparenc…… -
Java – buttons are not initially drawn
There is a problem with my applet. The buttons won't be drawn until you hover over them They stay after that, but once…… -
Java – Dom4j xmlns attribute
I want to add only the xmlns attribute to the root node, but when I add a namespace to the root element, all subsequen…… -
Java – select the first index in the collection
I sometimes feel like I'm reinventing the wheel I want to know in Java / Jakarta commons / guava /? Whether there are …… -
In Java, enumeration What do you mean?
What is enumeration? > meaning? Is there any way to represent general purpose? Solution <？> Syntax is Java's…… -
Where can I download JRockit for Java 1.5
I checked the download page http://www.oracle.com/technetwork/middleware/jrockit/downloads/index.html , but only the J…… -
Why are there exceptions to the following java code?
Why do I get exceptions Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to…… -
java – MediaPlayer. Create() always returns null
I've used a media player before and I've never encountered this problem Whenever I try to use mediaplayer When create(…… -
Java – Rewriting interface methods
For interfaces such as public interface something<T> { public something<T> somemethod(); } From my unde…… -
Java – p.waitfor() wait forever
I tried to run the command using a java program, but the p.waitfor() function never waited What's wrong with the code?…… -
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 – 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……