包含标签：Java 的文章
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Is there a C equivalent to Java concurrenthashmap#
I need a dictionary / HashMap in c# that allows you to do the following >The placement value does not iterate simul…… -
Java – how do you handle the generated code?
What is a good strategy for handling generated code? One of our projects uses Apache CXF's wsdl2 Java tool to generate…… -
Use the “Java” command to run CentOS Jar file
I'm trying to run on my CentOS box Jar file, but it says "Java: command not found" What is the best or simplest way to…… -
Declare parameter subtypes in Java interfaces and use subtypes in Java implementation methods
I want to declare a method in the interface, where the parameters of the method defined in the implementation class ca…… -
Java – opencv “Hello world” example for Android
How do I use opencv on Android? If possible, please provide a simple "Hello world" opencv code example for Android Sol…… -
Java – Android layout files do not allow characters such as &, <, >
When I try to use &, <, > as main XML and strings XML, which returns an error I want to mean "&" and "&l…… -
Java – dependency injection: should dependency objects be passed as constructor args?
Video here It explains what it should be How to explain dependency injection to a 5-year-old? So I'm confused now Solu…… -
To build a Java based stock trading application, you need to point to the technology to be used
I am using Java (with jQuery front end) to build an application that needs to communicate with third-party application…… -
JPA – sun. After adding entitylisteners reflect. annotation. Typenotpresentexceptionproxy exception
The following crash occurred when adding entitylisteners to the application using @ entitylisteners (value = {myeventl…… -
Java – error: unable to find or load the main class test
I'm currently teaching myself ANTLR. When I finished the book "the defined ANTLR reference", I encountered a problem I…… -
Handling runtime exceptions in Java
I have the following code try{//do something } catch (Exception e) { log.error(e,e); if (e inst…… -
Java – SVN deletes files. How can I recover them?
I use eclipse and subversion in Ubuntu Linux Today, I created some new Java class files and edited the old files (thes…… -
Graphic implementation in Java
I'm trying to create a graph class that uses another class. The vertex class represents all the vertices of the graph …… -
Java – returns two different values from the method
I have a method to parse the string record list into an object and return the object list So my method signature is li…… -
Concurrency – redundancy without central control points?
If you can provide services to multiple clients, if the server providing this service fails, another server will occup…… -
Java – insert jlabel into jcombobox
http://prntscr.com/1gpdqe Sorry, this is my first time to attend this forum Can someone help me? I've been trying to J…… -
Java – why would anyone construct a while loop like this?
I'm reading a book about Java. We're reading a ByteBuffer from a channel I found the author's way to construct an odd …… -
Java – load using applet DLL and use it on the client
I can load from the server to the client in the applet, and then call the load on the client DLL (using JNI)? Solution…… -
Java monitoring: JMX and servlets
In the past few years, I have learned a lot about JMX and built some very beautiful MBeans for my web applications But…… -
Java – is there any way to know the type of object?
The scheme is that I pass an object as a parameter in the method, and I want to perform the operation according to the…… -
java – Math. Invalid cos
This point of my program should use the cosine rule to calculate bottomangle public double bottomAngle() { to…… -
Java displacement causes a negative number
I try to use displacement to convert bytes to hexadecimal (as char) equivalent However, I encountered some unexpected …… -
Java – format text fields with jcombobox
I have a GUI window asking for break time The result I want is, for example, 1:15 – int hours = 1 and int mins = 15 – …… -
Java – can I add or modify elements at the head of a link blocking queue?
Or perhaps it's better to use other classes to access data synchronously? Solution If you want to manipulate both ends…… -
Java – how to convert static variables in a class to JSON
Hello, I have a class constant that only contains static variables Public class constant public class Constant { p…… -
Java – when a statement is considered a single entry / single exit, when it is not?
I'm not sure if I can use it well. For example, if statements in Java are called single entry / single exit statements…… -
Java – Android: read the HTML of the web page into a string
I'm new to Android development. I'm trying to read the HTML of the web page, store it in the following string ("myhtml…… -
Inheritance in T and Java
I have a class a static field F: class A { public static String F = null; } Class B: class B extends A { public…… -
Java – too many garbage collection threads
I'm using java to develop software that creates a thread when receiving events (from sensors) The lifetime of these th…… -
Java – internal static class field visibility
I have two classes, as follows public class A{ private static class B{ private static int s1; private static …… -
Java – test greenmail without installing an SMTP server
I'm trying to use greenmail to test the email function on my localhost The problem is that I don't have an SMTP server…… -
Java regular expressions remove SQL comments from strings
I hope someone can help me solve this problem! I have an SQL file that looks like this: CREATE TABLE IF NOT EXISTS use……