Java
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Java – list of JMX objects and attributes?
I try to implement a Nagios plug-in, which requires me to clearly know the objects and properties I want to monitor Th…… -
Java – send auto assembly tasks to spring taskexecutor
How can you have a class that implements runnable and submits it to the spring taskexecutor for automatic connection? …… -
Java – gets the generic type of the “real” class
How do I get a "real" class of a generic type? For example: public class MyClass<T> { public void method(){ …… -
The correct way to “close” the spring context in J2SE
I am currently experiencing JPA transaction manager problems in J2SE applications The latest request is not saved corr…… -
Can I extend enumeration in Java 8?
Just played and proposed a sweet way to add features to @ L_ 502_ Enumeration of 0 @ and this Some further fixes made …… -
Java – spring, @ transactional and Hibernate lazy loading
I'm using spring hibernation All my hibernatedao directly use sessionfactory I have application layer - > service l…… -
Java – Rock Paper scissors for foldable solutions
Just experienced a variant of the game: Rock Paper scissor Lizard Spock I have written java code for a traditional r-p…… -
Java – how to use firebase to query equal to (value, key)?
As a novice in firebase, I try to imitate a "where clause" request to retrieve a user's wallet in this simple use case…… -
Java – upgrade spring security oauth2
I'm trying to change the spring security oauth2 configuration from 2.0 Upgrade from 0.rc1 to 2.0 3.RELEASE. I copied t…… -
Java – how to convert a 24 bit PNG to a 3-bit PNG using Floyd Steinberg dithering?
How to use Floyd – Steinberg dithering to convert 24 bit PNG to 3-bit PNG? You should use Java awt. image. Bufferedima…… -
Java – iText: vertical alignment of pdftable cells
I tried to vertically align my avatar cell text in the middle of the cell height This is my code: PdfPCell c1 = new Pd…… -
Java – I can’t divide two numbers correctly
int percent = (score/numberOfQuestions)*100; int percent = (score/numberOfQuestions)*100; progressText.setText(score+"…… -
The purpose of static methods in Java
I'm confused about the use of static methods in Java. For example, if the main method is static, it makes sense, but w…… -
Java – double locking mode: disconnected?
Why is this pattern broken? Is it good for me? Any ideas? public static Singleton getInst() { if (instace == null)…… -
Java – find out if sqlexception is raised due to repetition
I have a java program that is not related to the database. If sqlexception is thrown due to duplicate keys, I need to …… -
Java – running JUnit tests using Maven under eclipse
I have just installed the plug-in M2e for the first time on eclipse I wrote a simple JUnit (version 4) test I can run …… -
Java – implement prosody finder
Want to know if anyone has any tips, or can point me in the right direction, find / create some algorithm to find pros…… -
“(? Pattern)” pattern is supported in Java
See English answers > regex named groups in java6 var pattern = @";(?<foo>\d{6});(?<bar>\d{6});"; var r…… -
Java – check a data test – pair_ sum_ even_ count
As part of the recruitment process, I recently conducted an online test on data Within an hour, I was given two simple…… -
Java – the ordering thread runs in the create / start order
How do I order threads in the order they are instantiated How do I make the following program print numbers 1... 10 in…… -
Java – is there any framework to synchronize data generated on one peer with all other peers in an unreliable network?
We are developing a system with the following requirements >There are n systems, each generating its own unique dat…… -
Creating generic arrays in Java through unchecked type conversion
If I have a general class foo < bar >, I do not allow the following to create an array: Bar[] bars = new Bar[]; …… -
Java – “convert to trial resources” in NetBeans – cool beans?
Netbeans 7.1. 2 has the following codes: bufferedoutputstream bos = new bufferedoutputstream(new FileOutputStream(file…… -
Java – initializing arrays with values – should classes be displayed explicitly?
I often see arrays initialized like this: String[] array = new String[] { "foo","bar","baz" }; However, reading langua…… -
Java – a transaction (process ID) deadlocks when locked, communicates with another process to buffer resources and is selected as a deadlock victim
I have a java program for updating tables in MS SQL Web users can also access this table through the web site created …… -
Java – handling multiple benchmarks in swagger
I'm using swagger UI to provide good documentation of rest APIs for our clients Documents available: http://www.myhost…… -
How does Java 8 maptoint (maptoint (E – > e)) improve performance?
I'm reading the book "Java 8 Lambdas". At some time, the author said, "it's a good idea to use the original profession…… -
Tail call optimization of Fibonacci function in Java
I'm studying tail call recursion and found some of the documents mentioned Sun Java does not perform tail call optimiz…… -
The 100 most commonly used java classes are shared
Most Java software development uses a variety of libraries. Recently, we analyzed 10000 open source Java projects and …… -
FTP download tool written in Java
You need to use java to write an FTP tool, because there is only a little Java foundation, but because it has not been…… -
Introduction to bridge pattern of Java design pattern
Bridge definition: it separates abstraction and behavior, which are independent but can be combined dynamically. Why u…… -
Introduction to adapter pattern of Java design pattern
Adapter pattern definition: two incompatible classes are used together. It is a structural pattern and requires two id……