包含标签：Java 的文章
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Java: how to check whether a lock can be acquired?
If I want to ensure exclusive access to objects in Java, I can write this: ... Zoo zoo = findZoo(); synchronized(zoo) …… -
Java – stores the contents of a text file line by line into an array
All, the problem I'm facing now is that I don't know how to store the contents of the text file in the array Is it pos…… -
Java generics and number classes
I want to create a method to compare a number, but can have an input of any subclass of a number I see this in the fol…… -
Haskell – parallel strategy using Monad
I often see the use and interpretation of Haskell's parallel strategy related to pure computing (such as FIB) However,…… -
Are the default values of Java annotations compiled into bytecode?
I tried to implement several static analyses for Java bytecode They try to calculate whether a method has specific pro…… -
Java – learn about spring boot
I try to understand the difference between spring boot and spring boot web Starting from this boot tutorial, POM inclu…… -
Java – how to check how many threads are waiting for the synchronization method to unlock
Is there any way to check how many threads are waiting for the synchronization method to unlock? I want to know when a…… -
Java – push notifications in spring MVC webapp
I am writing a forum web application using spring MVC I'm just a beginner in spring. Now it's only a week I need help.…… -
Java – pass the parameterized class instance to the constructor
I have lost my way through the jungle, please help me:) I have such a thing: public class BaseClass<TYPE> { …… -
Java – project Euler problem #12
I have always been happy to challenge with project Euler. I noticed that my solution 12 is my slowest speed, reaching …… -
How to set a switch statement in a Java loop
I want to perform a switch in the while loop. At the break of each switch statement, the while loop stops and requires…… -
Unit tests – run JUnit tests using SBT
I have a 0.13 7 SBT project has several subprojects One of them is called webapp, which has many JUnit tests in webapp…… -
Java – unchecked exceptions will be better checked
I realize that in Java, the relative advantage between checking exceptions and unchecked exceptions is a be example di…… -
Java – OSS implementation of Google application engine?
After Google first launched map reduce, the community launched Hadoop. Is there an OSS Google App Engine project? Or, …… -
Java – code navigation in eclipse
I find it difficult to browse the code of a large project involving many classes, XML files, SQL files, etc I know shi…… -
Java – open the paradox / Borland Database as a single file
My question is: This is what I have: so it's a paradox 7 database file I'm trying the driver: http://www.hxtt.com/para…… -
Java – catch several exceptions and re throw the general exception
I'm using reflection to add some data to private variables in classes from third-party libraries There are about four …… -
Accelerating mathematical computation in Java
I have a neural network written in Java, which uses sigmoid transfer function to define as follows: private static dou…… -
Java – the comparator must override superclass methods
I'm making a treemap < < string, string >, and hope to arrange it in descending order I created the following…… -
Is there a map implementation for Java listeners?
I want a map implementation where I can add listeners for put () events What is available in standards or any third-pa…… -
java – System. Arraycopy is slow
I've been trying to measure the system arrayCopy vs Arrays. Copyof performance, in order to correctly select one of th…… -
Java – how do we draw a line between two panels
I just want to connect the panel by drawing lines I have two panels, both of which contain a JTable I want to connect …… -
Java – eclipse RCP: using the configuration directory
My eclipse RCP application needs a configuration file that contains some information about connecting to a remote data…… -
Java – thinking in App Engine
I am looking for resources to help me migrate my design skills from traditional RDBMS data store to App Engine datasto…… -
Shadow of generic Java and type parameters
This code seems to work properly class Rule<T> { public <T>Rule(T t) { } public <T>…… -
Java – how do I split strings based on the first occurrence?
How do I split a string based on the first equal sign "="? therefore TEST1 = TEST1 Should be converted to test1, test1…… -
The Java conversion from PNG to JPG changes white to red
See English answers > JPEG image with wrong colors7 UploadedFile uf; //as a paremeter in function; PrimeFaces Objec…… -
Java – real time thread synchronization with normal threads
How to synchronize a real-time thread with a normal thread in Java? For example, real time threads that calculate cert…… -
How to handle exceptions when instantiating class objects
java version "1.7.0_45" java version "1.7.0_45" Hello I'm initializing class methods in the constructor However, the n…… -
Converting classic nested for loops using java 8 streams
See English answers > Cartesian product of streams in Java 8 as streams (using streams only) List<Card> deck …… -
Java – field lookup method of spring data repository
I have two entities, one user and one registered user The registered user has a field of type user I think there is a …… -
How do you get the mantissa of floating point numbers in Java?
I'm trying to get the mantissa of a floating point number (just for learning), but it doesn't work as expected Say the……