Recent Posts
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Java static members in subclasses accessed through generic parent classes
This seems like a new problem, but the last time I use Java, the language has no generics I have a class hierarchy (ch…… -
Java – how to parse / decompress / decompress Maven repository indexes generated by nexus
I've been from http://mirrors.ibiblio.org/pub/mirrors/maven2/dot-index/nexus-maven-repository-index.gz Downloaded the …… -
java. util. zip. Zipexception: duplicate entry: Android / support / V7 / graphics / drawable / drawableutils class
I just changed the support library from 23.0 0 updated to 23.1 0, now when I build the project, I receive this error: …… -
Multithreading – how to update GUI from thread using Delphi
I am using Delphi anonymous thread to execute code If I do this from within the thread, changes will occur, but once t…… -
Operator – rxjava returns the subscribed value in the function
For some reason, I sometimes want to use RX operators instead of the normal Java way to convert data structures, becau…… -
Multithreading – how to update GUI from thread using Delphi
I am using Delphi anonymous thread to execute code If I do this from within the thread, changes will occur, but once t…… -
Java – why doesn’t Proguard confuse method bodies?
I'm using Proguard to confuse my Jar program Everything is normal, but Proguard does not confuse local variables in th…… -
Java – Maven: the jar will be empty – nothing is marked as contained
I have a little problem with Maven When I run the command MVN package, I get the following warning: [warning] jar will…… -
Java – how to avoid concurrentmodificationexception when iterating over this collection?
I need to iterate over a series of projects & sometimes added to the collection at the same time However, if I add…… -
Java – JMX monitoring using ZABBIX
I need to check the memory size and CPU utilization of my application, find ZABBIX as a monitoring tool, and hope to b…… -
Cause: Java sql. Sqlexception: connection and managed connection org. jboss. resource. ADA independent
I have an application for JBoss, seam, hibernate and H2 I wrote a simple operation to import data from an external fil…… -
How to create a universal date formatter in Java for Solr?
I have a request that you can pass the date in the following format before indexing the date to Solr The following is …… -
Java swing JFrame size returns a larger screen size
When investigating some problems in my application, I found something strange Basically, the sscce should prove this p…… -
Java – throw multiple exceptions from a method
How to throw multiple exceptions from one method at a time? Example: public void doA() throws Exception1,Exception2{ …… -
Java – continue statement marked in the while loop
The following simple example causes compile - time errors But it is not clear why public static void main (String[] ar…… -
Java – how to correctly encode this URL
I tried to get this URL using jsoup http://betatruebaonline.com/img/parte/330/CIGUE ÑAL.JPG Even with coding, I have e…… -
Java – performance advantages of static empty array instances
The usual approach is to extract the return value of an empty array of constants as static constants Like here: public…… -
Querying interfaces in Java
Say I have two interfaces a and B: public interface A { public int data(); } public interface B { public char dat…… -
Java – use Jackson to deserialize arrays
I have a json-rpc client like this, I can't deserialize it {"value":"xxxx","type":"xxxx"} Objects I want to deserializ…… -
How to add mouselistener to a frame
I want to add a mouselistener to the MT JFrame framework, but when I execute frame When addMouseListener (this), I get…… -
Java – fragment variable ondestroy ()
There is already an answer to this question: > ondestroy() – to set or not to set instance variables to null? one S…… -
JavaFX displays properties in controls
I am completing the JavaFX tutorial for Oracle myself After years of rocking (a long time ago), I was fascinated by ne…… -
Java – how to use mockmvc to pass the @ requestbody parameter of the controller
Parameters with @ requestparam annotation can use: Post ("/ **********************************************************…… -
Java – play framework 2.3 – CORS title
Updated play 2.5 to provide a new CORS filter With the completion of the migration of the response class to promise cl…… -
Java – ANTLR independent input
I have a syntax file, boardfile G4 (only relevant parts): grammar Board; //Tokens GADGET : 'squareBumper' | 'circleBu…… -
Stop the running process through the GUI in Java
I have a GUI program that executes TestNG automation scripts This means that users can easily configure certain settin…… -
Java – delete items from the list or add build new list?
Usually, I have to iterate over an ArrayList and want to create a subset from it based on any condition From a perform…… -
Vector – what is the correct way to convert VEC to FFI without reallocation?
I need to pass an element VEC in the FFI Through the experiment, I found some interesting ideas I started to give the …… -
Java – pass variables from servlet to JSP
I have seen other problems similar to this problem, but none of them helped me solve my problem Basically, I'm trying …… -
Java – why doesn’t implicit conversion happen here?
I'm looking to convert a char array to a set of characters Logically, if I write something like how to convert an arra…… -
Occurs before the relationship in the JAVA memory model
With regard to JLS ch17 threads and locks, it says "if an action occurs before another action, the first action is vis…… -
How to substring a UTF8 string in Java?
Suppose I have the following string: R ü ckrufinsausland. I need to insert it into a database with a maximum size of 1……