包含标签：Java 的文章
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Java – spring: how to monitor quartz jobs from the controller?
I created two jobs in the spring project, which run independently of each other at two different times public class Jo…… -
Java – escape slashes in HTTP requests
I execute HTTP delete requests from JavaScript to Java Web applications The web application uses Jersey to send web ad…… -
Java – why does get () of HashMap return null when it should not?
I wrote a method to check whether a string has only unique characters I send the apparently non unique string "11", wh…… -
Java – from Import 3D skeleton animation from SMD model
I'm writing one SMD importer, I'm trapped in the bone animation part The problem is that I don't know exactly how it w…… -
Java – spring data Mongo seems to ignore hosts in XML configurations
I'm trying to start and run a simple "Hello world" program using spring data and mongodb Spring seems to ignore the mo…… -
Java cannot open loop without calling Create a handler within the thread of prepare()
I've seen most of the related problems, but I can't find any solution This is my code. I don't know what I did wrong s…… -
Java – is initialization the same as null initialization?
If you declare such an object: Object x; Does it initialize to null? For example, is will (x = = null) true? Solution …… -
How to “refute” an object in Java
class DogOwner { class DogOwner { Dog dog; DogOwner(Dog dog) { this.dog = dog; } } class Dog { …… -
Java – OOP design – Private modifier
I thought I knew when to use the private keyword Encapsulation is the reason for this, so I try to keep all methods as…… -
Java observer update function
I have a class that implements the observer. Of course, it needs to have the update function: public void update(Obser…… -
Sort the object list based on different data members in Java
I have this course: public class Friend { private String name; private String location; private String temp; private …… -
Java – why is the value of “thread. Currentthread(). Isinterrupted()” false after capturing “interruptedexception”?
As a title public static void main(String[] args) throws InterruptedException { Thread thread = new Thread(new Ru…… -
How to identify BigDecimal in double in Java
I'm writing a financial application. I get a value as a string. I need to check whether the value is suitable for doub…… -
Java – a quick way to find unique values in a list
Given a list of keyvaluepairs, where each pair has a getValue () method, what is the fastest way to get a list (or set…… -
Three fast problems about Java synchronization block
As far as I know, the following code, in the synchronized block, is an instance of a counter Question 1: in the follow…… -
Java – ant task: using exclusion parameters
Get the following build XML string: <jar destfile="${lib.dir}/rpt.jar" basedir="${classes.src}" excludes="**/*.java…… -
Save code online (Java eclipse)
At present, I have saved an online copy of my code on Dropbox I wonder if there are any other convenient options, such…… -
Java – enable assertions at runtime in NetBeans
I tried assert example It works normally in commandprompt I run the code with the following command java -ea Assertion…… -
How do I run the server without using a while loop?
I'm trying to create a server program using datagram socket and datagram packet classes, but my current code uses an u…… -
AVL tree rotation in Java
I want to implement Java AVL tree and rotate the tree left and right I didn't get this Anyone can tell me how to rotat…… -
Convert hexadecimal strings to unsigned byte arrays in Java
I get a 14 byte hexadecimal string, such as a55a0b0500000000000022366420ec But I want to compare them with such bytes:…… -
Java – why is enumeration more useful than HashMap in this case?
This seems to be a common problem, but all the items in the suggestion box don't accurately explain what I'm thinking …… -
Java – @ entity entity cannot be resolved to a type
Learn spring MVC and hibernate import javax.persistence.Column; import javax.persistence.GeneratedValue; import javax.…… -
Java – common code when rewriting abstract methods – Design Problems
I have an abstract class like this public abstract Stuff { public abstract void doStuff(); } Several classes are e…… -
Garbage characters when reading text files in Java
I have a Java call windows bat file that performs some processing and generates an output file if ( filexists("output.…… -
Is there a Java equivalent of the Java sched module?
Raymond Hettinger released a snippet that uses the sched module provided in the standard Python library to call functi…… -
Java – receiving error of profit calculator?
As a novice to Java, my task is to make a profit calculator for a paper boy, but I received this error: Enter the numb…… -
Java – Import wildcards do you always import everything?
I'm working on a small program and using arrays, so I did: import java.util.Arrays; Later, I began to expand what I ha…… -
Java – understanding regex if then statements
So I'm not sure I understand how this works This is what I think is the format of the if / then / else option built in…… -
Java – GWT, RPC security, HTTP headers, authentication and request builder
I assume that GWT RPC actually uses requestbuilder Is there any way to extract the requestbuilder instance used by my …… -
Java – how to fade into JPanel and children?
I know I can fade in the panel by adding an alpha value to the background color and background color Timer However, ho…… -
java – Wait. Until() and webdriver pagefactory elements
I'm using the @ findby annotation to find elements on my page like this: @FindBy(xpath = "//textarea") public Inpu……