Recent Posts
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Java – unexpected result when dividing int by int and storing the result as double
See English answers > java program using int and double 7 This code just divides one int by another, stores the res…… -
Java – Android simpledateformat does not work
Quick questions, simpledateformat didn't perform as well as I expected I want to get a date string that looks like Thu…… -
How to use regular expressions in Java to validate strings
Here, I want to make regx for strings that contain only 0 to 6 numbers Example-1 : "010002030405" Valid String This st…… -
Java: a neat mysterious veil
I have a list of filled integers: List collection = new ArrayList(); collection.add(this.score1); collection.add(this.…… -
Vectorization insert element
I wrote an R function to insert a given element E at a given position P of vector v Here is: insert <- function(v,e…… -
Java – use custom accountauthenticator with multiple applications
I have two independent Android projects. One is the implementation of abstractaccountauthenticator for managing user a…… -
Java – convert strings to BigDecimal in Android
Hey, how can I convert a string to BigDecimal in Android This is my first activity: public class ViewCartActivity exte…… -
Java – @ get can define consumption content type for jax-rs implementation?
I've been trying some examples on jaxrs (Jersey in this case) Here is my example stub implementation: @Path("stubservi…… -
Java temporary file multithreaded application
I'm looking for a simple way to generate a temporary file that always ends with a unique name on a per JVM basis Basic…… -
Java JTree directory structure from file path
I've been trying to solve this problem, so maybe some of you can help me I have a list of files and their full paths (…… -
Java – add jpanels of other classes to CardLayout
I have three windows in three separate classes. I want to use CardLayout so that when you click the next button, the n…… -
Java – is there a better algorithm than the one I gave in the TripAdvisor interview?
Just received a telephone interview from TripAdvisor (no reduction) I got the following code and asked to implement fi…… -
Java – JTable cellrenderer changes the backgroundColor of a cell at run time
I am trying to create a table and color specific cells, yellow, red or white, depending on the contents of other colum…… -
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 – File. Renameto() has no effect
I want to be able to rename the folder list to remove unnecessary characters (for example, dots and double spaces must…… -
Java – how byte data types are used to hold memory in large arrays
I see this in the Java documentation My question is how do byte data types store memory in large arrays I'm confused a…… -
JavaFX: no tableview content displayed
I have created a JavaFX application, I built the native package using ant, and I confused jar with proguard-4.8 In cas…… -
Java – the fastest way to combine unique integers from 2 arrays
If I have 2 arrays: arr1 = {9,8} arr2 = {13,12,10,9,8} I want to get: {13,10} And the array is given: arr1 = {23,22,21…… -
Java Swing RadioButton with variable, clickable icons
Design a question. The range of answers can be selected through RadioButtons Each mouse click can change the displayed…… -
Are there any problems when the project has different versions of the java compiler?
I have an eclipse workspace with several Java projects (in Maven); These are interdependent Recently, I started to cha…… -
JavaFX: drawing on ImageView with mouse
Use the mouse in ImageView I don't know any method of drawing on, such as using canvas? Solution My coming here is a g…… -
Java garbage collection and graphics processing methods
I am creating a game (snake clone) as a hobby I'm looking at the dispose method of the graphics class in the Java API …… -
Java servlet annotation
Is there a way to map URLs to methods using pure Java servlets instead of spring MVC request mapping? It's like: @GET(…… -
Java – find by object ID in Jongo
I know this question is very basic... I'm sorry I can't use Jongo to make an 'ID by ID' for Mongo I tried Iterator<…… -
Java – playframework module and routing
I use play! Frame 1.2 five I have a module 'business model' In conf / routes: I have a controller: package controllers…… -
Java – add timeout function to swingworker
I will have to implement some functions for my application soon, timeout according to the length specified by the user…… -
Object size in Java
Suppose I have: Class A{ int a; } A obj = new A(); Then what is the size of obj? Is it the same size as int, just …… -
Java – definition of jax-ws and jax-rs [closed]
I read somewhere on the Internet that Jax - WS is a soap implementation and Jax - RS is a rest implementation It's tru…… -
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…… -
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 – how to define the label position of JRadioButton on NetBeans?
I want to define the label position of jradiobuttons on the buttonggroup on NetBeans so that the label is under its Ra…… -
How to confirm a message in message driven beans
In the JMS document, I read that message driven beans do not support client_ Acknowledge mode, only supports dups_ OK_……