Recent Posts
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Java – calculate method call stack size to check stackoverflowexception
This morning I answered a question related to stackoverflowexception This person has asked when a stackoverflow except…… -
Java threads in libgdx
Hey guys, I'm making a game with libgdx. I really want to operate the game, so I run a drawing loop and a logic loop o…… -
Easy in Java
Make sure it's an easy person who sees it first! Why code in Java long one = 1 << 0; long thirty = 1 <<…… -
Java – a regular expression used to split strings separated by | when not enclosed in double quotes
I need a regular expression to calculate the number of columns in the pipeline delimited string in Java For example: "…… -
. Net – what is the current performance of mono virtual machine?
The network is full of different types of performance tests for different languages, compilers and virtual machines Ho…… -
Java – cannot convert to internal representation
I am using Oracle database and Tomcat 6 server to provide broadleaf commerce application org.springframework.jdbc.Unca…… -
How to create an extensible list using Java Swing
I need to make an extensible list using java swing I'll try to demonstrate: Not expanded: >[Expand me!] >[And m…… -
Java – why does atomicreference CAS return false with a value of 128?
I use atomicreference to implement atomicinteger However, in testing, I noticed that even in a single threaded environ…… -
Java – generic methods with different return types depending on the call location
I have the following methods to use generics to execute getters for each item in the list it receives: public static &…… -
What should be the size of the icon in the Java – alertdialog?
I'm trying to assign an icon to an alertdialog, but I keep getting a memory error (seems to be from the size of the ic…… -
Java – an algorithm for calculating public group membership using big data
I need to write a program to calculate the number of times two users are in the same group Users are assigned by user …… -
Java – how driver classes reside in JDBC 4
A good addition in version 4 of JDBC is that you don't have to load it explicitly What's my problem? What if there are…… -
If the parent class / interface changes, will the bytecode of the class change?
I am trying to determine whether some jars need to be recompiled in the build chain. If I have the following structure…… -
Java optimized string and character array
In my program, I'm doing a lot of string operations I'm trying to improve performance and wonder if using char arrays …… -
Java – wierd syntax – underline between numbers
See English answers > java 7 underscore in numeric literals8 int _ = 8; System.out.println(5_5); The question is "w…… -
WebSphere – where can I find a specific version of IBM JDK / JRE for windows?
I'm trying to get a JDK sensitive Oracle Software used with WebSphere. I need to find some specific versions of IBM JD…… -
Where can I get tools for use with earlier versions of Java 8 JDK jar
Where can I get tools from earlier versions of Java 8 JDK jar？ Without it, my java 1.8 Maven POM based project in Net…… -
Java – Android GC considerations – when does the GC run and can track its running status from the code?
I've been looking for some detailed design documents describing the architecture of Dalvik VM garbage collector, but I…… -
When should I use Java’s stringwriter?
What is a Java stringwriter and when should it be used? I've read the documentation and looked at here, but I don't kn…… -
Lambda for JavaFX Task
The compiler provided this error for this Code: "the target type of a lambda expression must be an interface": Task<…… -
Multithreading – Perl threads slowly consume memory
I'm running a Perl server with 10 threads They will never be broken before the program exits, but this is my intention…… -
Java – spring hibernate persistence does not cause insertion
I'm trying to implement a simple Dao @Repository("iUserDao") @Transactional(readOnly = true) public class UserDao impl…… -
Java – read date values from excel cells as strings
I use Apache POI library to read Excel files I got stuck reading the password unit If the user enters a date in the pa…… -
Java – Maven build failed dependencies
I have a local artefact repository and my Maven settings point to it, but for some reason, it doesn't seem to hit it a…… -
Pass multiple parameters in the App Engine task queue (Java)
Is there any way to pass multiple parameters in the Google App Engine queue? Queue queue = QueueFactory.getQueue("sms-…… -
Java syntax for a list of comparable objects
I'm writing a method that takes unique parameters as a list of comparable objects and returns nothing I'm not sure wha…… -
Do JDK courses have other specifications besides Javadoc?
Do JDK courses have other specifications besides Javadoc? If so, where? For example, refer to collections unmodifiable…… -
Java – eclipse and NetBeans web services tools
Some time ago (about 4-5 months ago), I attended a lecture on Java EE, and at some time, the lecturer began to discuss…… -
How to replace classes in applications running in Java?
I have a class named namegenerator I can use it to generate names based on a given logic Then I write a testnamegenera…… -
Java – how to see an array in Android’s logcat
I want to record arrays in my logcat, such as arrays, so I know what the output is File[] mp3List = ... Log.v("test",m…… -
Java – using welding and dropwizard
I tried to use weld se for dependency injection in the dropwizard application I can boot weld and inject it into the a……