包含标签：Java 的文章
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Multithreading – the parbuffer evaluation does not give the expected acceleration
I have a Haskell function, and I want to evaluate it with accurate intermediate results: f 0 x = 0 f n x = let tmp = f…… -
java. Lang.noclassdeffounderror: in anonymous inner class
I use sun / Oracle JVM 1.6 on Linux red hat_ 23 run this code on a VMware server Sometimes the JVM seems unable to acc…… -
Java – swagger doc (type list) for API response
I'm using swagger to document my rest API However, I encountered a problem specifying the response for some API calls …… -
Java – how secure is internal storage?
What I need: For Android: I need to permanently save the data, but I can also edit (obviously read) it Users should no…… -
Java-8 – intersection of collection flows to new collections
Is there a better and simpler way to solve this problem? @Test public void testReduce() { Set<Integer> foo =…… -
What is the name of this Java state based design pattern?
In my work, we conducted a survey. A survey involves multiple steps I work in automation, so I design tests around the…… -
Java – eclipse Google App Engine “not enhanced”
First eclipse: Can't get rid of this error... I've tried every suggested fix on Google The persistence class "com.blah…… -
Constants and attributes in Java
Java best practices recommend reading properties as constants So what do you think is the best way to achieve your goa…… -
Java signature jar and server certificate
Can I sign a Java Web launch application using a server certificate? What I want to know is whether it works My server…… -
Java – replace switch with binaryoperator
I'm trying to replace the common switch for arithmetic operations with the binaryoperator function interface The basic…… -
Get image acquisition hardware from Java
How to realize image acquisition from hardware scanner in windows? I found the jtwain library, but it's commercial Is …… -
Java – call breakpoints do not work in JUnit tests in eclipse
I tried to debug the JUnit test in the eclipse, but my breakpoints did not trigger (unless they were in the first or s…… -
Java – this puzzling generic pattern crashes eclipse – can I make it work?
(I am using eclipse Luna 4.4.0, JDK 1.8.0_05) I'm making a game. The topology of the game world can be roughly divided…… -
Which is the best JSON rewriter in Java?
Which JSON rewriter is best suited for applications written in Java? Standards may vary I am most interested in stabil…… -
Storing / reusing intermediate results on Java 8 streams
I have a list of A. to perform filtering, I need to map a to B. but once the filtering logic is completed, I still nee…… -
Java – how to return xxxsize from JComponent added to jlabel
How to correctly return xxsize from JComponent added to jlabel 1. Figure > > make layoutmanager work like JPanel…… -
Multithreading – a method to get the number of cores executing programs on a task node?
For example I need to get a list of all available executors and their respective multithreading capacity (not the tota…… -
How to distinguish textfield Settext() and manually add text to textfield in Java?
I have a textfield in my application. When the user clicks in an item in JList, it will start programmatically (textfi…… -
Java – how do I concatenate list items but use different delimiters for the last item?
The following list is given: List and lt; String > Names = lists Newarraylist ("George", "John", "Paul", "Ringo") I…… -
Access HashSet directly using hashcode? (JAVA)
Hi, I want to know if you can directly access the content of the HashSet if you have the hashcode of the object you ar…… -
Java – replacement of AWS lambda invokeasync (not recommended)
I tried to call a Java lambda function asynchronously from another Java lambda function I just want to fire and forget…… -
Java – FN does not support JSTL
When I use ${FN: contains()}, it causes the following exception: org.apache.taglibs.standard.lang.jstl.parser.ParseExc…… -
Java – sensoreventlistener in the service
I tried to implement sensoreventlistener, but for some reason nothing happened public class Servicee extends Service {…… -
Java – spring scheduledtask – start / stop support?
Is there any way to start or stop tasks scheduled by spring scheduled tasks initialized with context files or @ schedu…… -
What is the equivalent of register defaults = “false” in Java – spring 4?
How to configure a custom message converter with register defaults = "false" in an XML free project using spring 4? &l…… -
How to split a vector into two columns to create randomly assigned ordered pairs
I tried to generate random pairs from 34 subjects Subjects will be assigned ID #1-34 To generate random ordered number…… -
Java – Jersey: what does “syntax element not found” mean?
After upgrading Jersey from version 1.15 to 1.17, it starts logging the following messages: Apr 2,2013 5:13:06 PM com.…… -
How to view memory usage and thread dump of Java programs from the command line?
Are there any known command - line tools that require the JVM to view Java program memory usage and thread dumps Like …… -
Java – provides Di methods in abstract classes
In most cases, I have many components with the same classes injected by OSGi declarative services These services will …… -
Java – spring autowire using the types defined in the comments and properties file?
My goal is a framework in which specific types of beans can be easily changed through property files I also prefer ann…… -
Java – the collections remove method does not give a concurrent modification exception
I've read an article about removing elements from the collection from this link According to my understanding, the ite…… -
Java – jgit get pull file
I have a repository in two different folders (folder1 and folder2) There is an "oldfile" file in the repository In fol……