Java
-
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 – JAXB unmarshalling error: expected element is < {} root >
I'm reusing existing objects generated elsewhere to ungroup XML data in the form of string types Object: /* 3: */ i…… -
Java string matching problem
I face a very basic problem Sometimes small things can take a whole day:（ I try to match 2 strings, and if it matches…… -
Java – how does OS X recognize a drive letter?
I Know. Heresy But I'm in trouble I have many configuration files that use absolute pathnames, which will cause incomp…… -
How to hide bean types in sneakyaml
This code will output: (yaml) — !! org. test. bean. Person Address: 4011 16th ave s ….. You can hide my bean type (org…… -
Java – use jtextfield – cannot convert value to int
I want to start from JCombo@R_333_2419 @Get the selected value in, search for it in the database, and update the quant…… -
java – BufferUnderflowException？ here?
I am writing a small UDP server in Java When the server receives a command ('get_video '), it reads a file ('video. Ra…… -
Java – how to implement list, set and map in null free design?
In most cases, it's great when you can return null / empty objects to avoid null values, but what about collections li…… -
Can the terms’ variable ‘and’ field ‘be used interchangeably in Java?
When learning java with several books, no one seems to be able to say when to use which term Variables are defined in …… -
Java – using import some directory.* Worse performance?
What is better performance use import some.directory.*; or import some.directory.classNeeded; Or is there no performan…… -
Previous entry iterator – Java [copy]
See English answer > iterator has next() – is there a way to get the previous element instead of the next one? 10 I…… -
Java – displays a list of strings in Android
I started developing for Android yesterday, so I'm a complete novice I try to use listview, but I can't even see the v…… -
In R, the character vector is divided according to specific characters; Save the 3rd piece in the new vector
I have a 'AAA'_ 9999_ Data vector in the form of 1 ', in which the first part is alpha location code, the second part …… -
Java – requires a visually pleasing UML diagram tool
I've been looking for different tools to create UML diagrams for my java applications My professor uses omnigraffle, b…… -
Java. Jar when running Java – jar lang.ClassNotFoundException
I'm using ant to build my build XML file, which is compiled, but when the generated jar is run through "Java - jar my_…… -
Java – when to merge code duplicates
We use the code static analysis tool (sonar) to detect duplicate code in the project It seems that there are many repe…… -
ORM – laravel 4: eager to load
I have a table called userwords with a word in it_ ID column, which I want to use to get rows from the words table and…… -
Java – jtextpane prevents scrolling in the parent JScrollPane
I have the following "tree" objects: JPanel JScrollPane JPanel JPanel JScrollP…… -
Support covariant type conversion in Java
The Java type system only supports immutable types So list < string > is not list < Object > The list <…… -
Java – Destroy () or finalize () is called first in the servlet?
In servlet, call destroy () before or after finalize (). Solution First call destroy() Servlet container will call des…… -
Java – how to implement some if then logic using JSF and facelets?
I have a bean with live state Depending on the status value, different CSS classes should be applied to render it So I…… -
Java – swing: pass values back to the UI from a predetermined thread
I have a java system tray UI and need a scheduled database polling What is the best way to generate a new thread and n…… -
How to include the text of a file in Java code?
It seems that Java is not what I used to do in C (there's no big surprise) I have a set of rules generated from anothe…… -
Java – can Maven re sign dependencies?
I'm using maven jarsigner plugin to sign my shadow super can I really need to distribute some dependencies in my jars …… -
Java – how to set the correct last modified header value for spring Web Services cached using spring cache?
I have a spring MVC controller: @Controller @RequestMapping(value = "/user") public class UserController { ..... ……