包含标签：Java 的文章
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Java – command mode – parameters
I want to use command mode in a distributed client / server environment In essence, the "execute" method of the receiv…… -
Java – use x = = y or (X-Y) = = 0 to control the problem of if conditions
My program includes the following code snippet, which is based on two variables temp Get (J1) and temp (J2) are execut…… -
Java – should I use connection pooling?
I am writing an ETL project in Java I will connect to the source database, get the data only once, make some transform…… -
Java – why resources Will getstringarray (int) throw an exception?
I'll call you Resources resources = Resources.getSystem(); String[] networkFiles = resources.getStringArray(R.array.xm…… -
Java – what is logging and how is Apache commons logging used?
What information does the web application server want to record and why? as far as I am concerned org.apache.commons.l…… -
Java – simple asynchronous I / O: many threads, one file
I have a scientific application that I usually run in parallel with xargs, but this scheme will lead to repeated JVM s…… -
Java EE – upgrade JBoss 5.1 from El 2.1 to El 2.2?
The problem is quick and simple JBoss 5.1 is out of the box and supports JSP, EL (expression language) 2.1 and servlet…… -
Draw lines in java3d
I want to draw a line to specify the point in Java 3D What shall I do? For example, to draw a cube, we wrote Colorcube…… -
Java regex: split without losing tokens
I'm trying to write a regular expression that splits a string when there is a space followed by a minus sign followed …… -
Java – how to use hibernate sessions?
My program structure is as follows: In my main Java class: for () // this will execute for say 5000 times ---- LINE 1 …… -
Java Swing custom controls
I want to know how to create a new swing control My problem is that some components are missing on swing (for example,…… -
Ant exclusion file
I have to write an ant goal for the JUnit report This is an existing application Some test class files are called test…… -
Java – executes code before and after the @ transactional method
We have a spring - based application whose service layer is annotated with @ transactional We need to run code before …… -
Java is equivalent to NET object. Equals(object,object)
Yes NET System. Static methods defined in object bool Equals(object a,object b); This is a useful alternative to A. eq…… -
Java – double iterator loop
So I have this loop in my code that requires two separate iterators But when it tries to use rbitterer When next(), Ja…… -
Using Java as the Linux Shell Scripting Language?
I used the C / TC shell before instead of turning to python Now I want to integrate all shell scripts, GUIs, databases…… -
Java – extract all nouns, adjective forms and text through Stanford parser
I try to extract all nouns and adjectives from a given text through the Stanford parser My current attempt is to use p…… -
java – Spring 3 applicationContext-security-JDBC. XML has beans: are beans not beans?
Someone can tell me that I have to use beans in my ApplicationContext: beans instead of beans and how to fix it <?x…… -
How to require two types of parameters when passing to a method in Java
In one class, I have to call the constructor of another class that requires two parameters, ihelloserviceconnectionobs…… -
Java V Scala from a concurrency Perspective
I'm starting my last year's project now I will study concurrency methods from the perspective of Java and scala After …… -
Java – two EJBs with the same interface Is this a good habit?
My use case requires me to have a class hierarchy, as shown below public interface ServiceA{ public void doSomething()…… -
Java: what are the event notification options in my own API?
Suppose you have written an API that can collect data in real time in a separate thread Data access is thread - safe a…… -
Java – custom parameters / variables passed to the Android simulator
I want to pass a parameter to the Android simulator launched through eclipse This parameter is a custom parameter. I w…… -
Java inheritance and generics
I have some classes that look like this: Model public abstract class BaseEntity<O extends Object> { ... } publi…… -
Java – play frame JPA problems with save()
I'm trying to save a simple object in the database, but it gives me some problems This is my object class: @Entity @Ta…… -
Java – does the implementation of hasmap store key value pairs in the linked list
I read in a book that when we place an element in a HashMap, it is stored internally in a bucket My question is >Do…… -
How to set expiration date in Java
I'm trying to write some code to correctly set the expiration date of a given date For example, this is what I have Da…… -
In Java, when the ThreadLocal object is modified, will the change be retained in the next request?
In a typical web application, when a request enters, the filter looks for the context object in the HTTP session If it…… -
Java – installing J2ME applications in Samsung Mobile
We develop J2ME applications for low-end mobile devices that support Java, such as Nokia S40 phones In our application…… -
Java – type conversion required for function calls, with short data type variables as parameters
Whenever I use byte or short data types as method parameters, I need to explicitly convert the values I pass to these …… -
Java – why can’t my JTree be updated when a new node is added to the treemodel?
The defaulttreemodel I used fills in the override of defaultmutabletreenode, which supports optionally changing the di…… -
A clean technology or library for generating e-mail in Java
At present, our application uses the classic "string shredding" with some string The replace call generates a hybrid e……