包含标签：Java 的文章
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java – Apache Commons Math 2.2 Percentile bug？
I'm not 100% sure whether it's a mistake or I didn't do the right thing, but if you give percentile data of the same s…… -
Java – serialization and subclasses
If I define a class as serialable, when I create a subclass, it will require me to define a serialVersionUID Is this n…… -
Is there the equivalent of colander / dictshield for Java / Scala?
Colander is a python pylons tool for: It is a bit like orm of semi-structured data; In my opinion, it will be particul…… -
java – org. apache. struts. action. Actionmessage cannot be cast to org apache. struts. action. ActionError
I'm working on Struts 1 2. Application I created a formbean that extends validatorform and then overridden the method …… -
Java – capture EditText lost focus
I am a long-term, self-taught amateur VB programmer. Now I am trying to teach myself Java and Android I say so, so you…… -
How does garbage collection work with session objects in Java?
How does garbage collection work with session objects in JSPS? Will each session collect garbage after the session exp…… -
Upgrade path of Java – JSON file format
We use Jackson to store user preferences for Java applications in JSON files As we continue to develop applications, w…… -
Java：System. Getenv (“appdata”) returns null. What is it now?
I just found that when a java program is started on windows as another user through "run as..." (from the context menu…… -
Java – how do you know all the exceptions that a method can throw
Is there any way to get some details about the exception security of Java standard classes? Mainly using C and C #, I …… -
How to write GMM (Gaussian mixture model) in Java?
How to write GMM (Gaussian mixture model) in Java There are some implementations in MATLAB, but I'm looking for some d…… -
Java – no matter how the application starts, you can find the conf text
I'm new to Java I have some directory structures product/ conf/ classes/com/../.. Conf / contains some…… -
Java – a regular expression used to remove HTML tags from a string
I am looking for a regular expression to delete all HTML tags in the string from JSP Example 1 sampleString = "test st…… -
“Change the modifier of ‘frame’ to ‘static’ in Java”
I was told by eclipse to change the modifier of my string variable to static I don't understand why I think I'm declar…… -
Java algorithm problem
Problem statement: in Java, given an integer array, can you select a group of integers so that the group is added to t…… -
Java – is it a good habit to package SQL databases in jars?
I want to create a Java library without any dependencies, but it needs to use an embedded SQL database Is it a good pr…… -
Java – bouncycastle error: the key type in the ECDSA based signer is not recognized
I have been using bouncy castle's encryption library and RSA's encryption library for some simple tests What I'm doing…… -
Java – typesafe delegation without instanceof
I have a service program: filter(List<Criterion> criteria); Is there a good way to internally assign method call…… -
Java – ant creates filesets from (absolute) attributes, dirsets
In ant, I define some attributes to define some paths (absolute) required to build the system Most ant tasks require f…… -
ODBC interface / driver written in Java
I am looking for a way to expose my Java EE application server through ODBC connection That is; I need to provide the …… -
Java – spring rest JSON binding
I'm trying to create restful services with spring Method accepts the "usercontext" object through parameters, that is,…… -
Java – binding methods to buttons in Android
There is a button in my layout, which contains the following attributes: Android: onclick = "nextq". In my java code, …… -
Java / Android: get Facebook user information from graphic API and display it in textview
I'm working hard to learn java now, and I've been in-depth learning since Android faceobok API Now, I'm trying to get …… -
Java – streaming data using httpurlconnection
I want to use httpurlconnection to open a long-term connection with the server through HTTP post and process the strea…… -
Java – why does libgdx SpriteBatch / bitmapfont destroy texture bind？
I'm using libgdx to write games for Android Here are some codes for painting texture torus: Gdx.gl10.glPushMatrix(); G…… -
Doctrine ORM – many to many with additional parameters
Use the default entity creation command: PHP app/console doctrine:mapping:import testSiteBundle yml PHP app/console do…… -
Java – getbundle cannot find the properties file
I'm trying to use a properties file to store my Google Checkout merchant information When I call resourcebundle Getbun…… -
Java – how to store encrypted passwords in the database?
I try to store the password in the database in encrypted form with the help of JSP and servlets How can I do that? Sol…… -
Java – wsimport ant task and JDK 6
I am trying to generate a web service proxy class using Jax WS, and use the wsimport ant task, similar to this questio…… -
Java – how to escape special characters used in SQL queries?
Is there a Java library to escape special characters from strings to be inserted into SQL queries I've been writing co…… -
Design pattern – the difference between facade and business delegation pattern
What is the difference between facade and business delegation design pattern Are they all used to hide business logic …… -
Java – scheduled tasks in jetty
I want to write a simple groovlet that runs a task periodically and uses the jetty container What is the easiest way t…… -
Java – how to simplify my java
I wrote some java code in the spring framework I have two beans, man and man 1 Their structure is slightly different, ……