Java
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Java array efficiency
I am not 100% sure that the mechanism is in action, so I decided to publish it here for further clarification I'm work…… -
Java – Google common cache – the default value of maximumsize (and other “optional” settings) – you want a cache that uses all “available” memory
I just found guava through the search cache API (it's perfect for my needs) In my opinion, a good default value for ma…… -
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…… -
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 – get the value from JTable as an integer?
I don't understand; I am using defaulttablemodel. My attempt is to get the values in the table as ints: Integer.parseI…… -
Java – how do I poll the FTP location to trigger changes in it?
I'm trying to poll FTP locations Solution I'm not sure how to achieve this goal in Jenkins If I'm just answering the m…… -
Java – exception in stackoverflow error of thread “main”
I am writing a program to verify whether the password meets the corresponding requirements I've written all the code a…… -
Java – you need to help run map to reduce wordcount jobs and data stored on Amazon S3
I'm trying to run the map reduce wordcount job on a text file stored in a bucket on Amazon S3 I have set up all the ne…… -
Extend the Java comparator to compare specific classes of interfaces that implement its comparison
I have a comparator like this: public class XComparator implements Comparator<X>,Serializable { } Currently used…… -
Java – compare string input
import java.util.Scanner; import java.util.Scanner; public class TrueFalseQuiz { public static void main(String[…… -
Java – Apache FOP and Arial fonts
My XSL style uses Arial font <fo:block font-family="Arial" font-size="8pt" font-weight="normal"> Configuration f…… -
Java – use JAXB to create reference objects based on attributes
Consider the following XML: <Config> <Paths> <Path reference="WS_License"/> </Pat…… -
Java Swing: changing text after delay
Basically, I have this game. Once I guess the correct answer, it starts a new game of new words I want to display corr…… -
Java – is GWT uibinder inherited?
My model has a base class for crud forms In the template of this class, I have a save button In the extension class, I…… -
Can a single core CPU achieve real concurrency?
"If you can feel the computer switching dozens of tasks every few milliseconds, you will certainly agree that the comp…… -
Java – unable to find or load the main class file
See English answers > could not find or load main class 16 I received this error message My VM parameters: looks li…… -
Java – eclipse RCP – add a listener immediately after creating the view
Greetings to stackovlowians, I am developing an eclipse RCP application and must add the selectionlistener to the Proj…… -
Java spring MVC: no mapping found for HTTP request with http
I had a problem setting up spring MVC... I have this project structure -SpringTest<br /> -Java Resources …… -
Java – Solr – fields with default values reset themselves if store = false
When I set a field to stored = false and give it a default value, I encountered a strange problem with Solr (4. X) To …… -
Java – list concurrentmodificationexception
I have the following code public void saveProjects(List<Project> proj) throws DatabaseException { for (Proje…… -
Java: get sample request XML from WSDL
Is there a way to get the sample request XML using WSDL (URL) alone? The following is WSDL: http://www.webservicemart.…… -
Java – which is better to assign attribute values in constructors or classes?
Are there any differences between instantiations of the following types? If not, what are the best practices? "In clas…… -
Java for each loop
I'm working on a task when I accidentally make a mistake, but the code executes and provides the correct result I was …… -
JavaFX – setbuttoncell for combobox
I have a problem I can't solve I want to implement the progress bar into a combo box: public class JavaFXApplication4 …… -
The DB2 Java stored procedure call returned an error sqlcode = – 440, sqlstate = 42884
I am making a simple stored procedure call to DB2 Although it calls the stored procedure, it always returns this error…… -
Java – how to add a method to a source file without editing the source file?
I'm trying to add a method to the minecraft source file, but I have to figure out how to do it without actually editin…… -
Java – Guice generic provider (the provider itself is generic, not its bound class)
There are many online resources on how to use Guice provider to bind to generic classes, such as wiki entries like thi…… -
Java – is there any way to set the size of ArrayList after declaration?
For example, in a traditional array, I will declare an array like this: int array[]; Well, I'll initialize it later li…… -
Java – internal classes in the interface
We can have a class inside the interface, which has different interface implementation methods I have a question here,…… -
Java – regular expressions are slow. How to check whether a string is only word characters fast?
I have a function to check that a string (most strings have only one CJK character) has only word characters. It will …… -
Java – JUnit: use parameterized types – arrays to assert the equality of collections
I try to assert the equality of the following sets: String[] arr1= new String[] { "1","2","3" }; Collection<String[…… -
java – Linux x86_ Cassandra startup error 1.2 on 64 six
Try from the latest stable version – 7000 – 1.2 6 installing Cassandra on Linux I have modified cassndra Yaml points t……