Recent Posts
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Java – JDO: is persistence manager a singleton?
Just the basics: I use datanucleus to support embedded db4o databases If I do this simple test: PersistenceManager pm1…… -
Java – text similarity function with strict document similarity
I am writing a java software and must make a final judgment on the similarity of the two documents encoded in UTF - 8 …… -
Java – why does the method “setmaximumsize” not work, although “setminimumsize”?
import javax.swing.*; import javax.swing.*; import java.awt.*; public class MyClass { public static void main(Str…… -
Java – Cactus and mock object (jmock, easy mock)
I'm confused about cactus and jmock (easy mock) Who can answer the following questions? >When to test with cactus? …… -
Java – wicket – radio buttons and label elements
In my wicket application, I have a page with radio buttons and < label for = "..." > Content: <input type="ra…… -
How to use java code to search in Google?
How to use java code to search in Google? Solution I'll tell you to use one of their APIs Unfortunately, none of them …… -
Java – mapping languages to examples
I recently read Eric Steven Raymond's article "how to become a hacker". I like his suggestion to learn five key langua…… -
Mapping objects from files in Java
I want to map my objects from a text file. The content of the text file is as follows: ~ attribute1value attribute2val…… -
Java – what is a good habit of combining classes
Do not save all my courses in a single SRC – > 'package'_ Name 'folder I'm creating different sub packages to separ…… -
Java – display JComponent in JPanel on JFrame
I can't display JComponent. In JPanel on JFrame The following does not work JComponent component = ... panel.add(compo…… -
Java – accepts multiple user names and passwords
How do I accept multiple user names and passwords using the following code? if(value1.equals(“username”)&& val…… -
Why avoid using the c keyword in Java?
A popular editor uses highlighting to help programmers avoid using C keywords in Java Display the following words in t…… -
java – Webdriver showModalDialog
We use webdriver for functional testing However, our application uses the showModalDialog JS function to open a pop-up…… -
The frequency response is calculated from the filter coefficients
I can't find any understandable information about the subject On Wikipedia in the Netherlands, I found that you can ap…… -
How to save map objects in Java to MySQL database
I have Java map (string and ints) objects and I want to save them to the database Solution You actually asked two diff…… -
How do I stop selenium server from ant task forked from ‘Java’ target?
I write an ant target, start selenium server, run my test code, and then... I want it to stop selenium How do I track …… -
Java – when I publish the form to another page, the JSP form parameters disappear
If I delete the action attribute from my form, it will be sent back to the same JSP, and I can easily read the request…… -
The best difference between object lists in Java
I have a list of Java objects on my server, which is sent to the client through some serialization mechanisms Occasion…… -
LogParser for Java
I just read this post. I want to know if there is something similar to query JBoss log files Solution Try chainsaw V2 …… -
JBoss – how to easily test EJBs using JUnit
I want to use JUnit to test enterprise Java beans (which should be deployed to JBoss server in the future) But I don't…… -
How to get the location (byte location) in the file from the Java scanner?
How to get the location (byte location) in the file from the Java scanner? Scanner scanner = new Scanner(new File("fil…… -
Java – how to export eclipse link objects to XML
Is there an easy way to store my model that I use eclipse link in eclipse files? I want to implement the export functi…… -
Help write your own javax swing. text. Document
I am writing a Java textcomponent in which the underlying document has some structure It's very short, basically one l…… -
Java reads hexadecimal values into arrays of type int
I have a file that contains integers in hexadecimal I know you can say int i = 0x But when reading I get the wrong val…… -
Java – Spring / LDAP — calling setter method in bean configuration
I'm writing a spring LDAP application and I have to set an authentication policy for contextsource I want to do this i…… -
Java – how do I determine if an Internet connection is currently available and valid on Android devices?
I have this Android application that needs to load data from a remote server over the Internet This update function ob…… -
Java – method selector?
I come from Objective-C background In objective - C, you can use the @ selector variable to store references to method…… -
Java – Notification led – color
I'm trying to experiment with LED colors on my Nexus One and I'm having trouble creating any LED lights (colors) with …… -
Java – why are exception error strings different in different environments?
I have this code to handle catching specific exceptions private static final String CONNECTION_REFUSED_EXCEPTION = "ja…… -
Java – optional jar wrapper
I have a small program Jar, which uses a huge library A small part of the jar Is there a tool to repackage several can…… -
Java – is it a good idea to nest a class in an interface?
Is it possible to have an internal class inside the interface in Java??? Solution You can But that's what O'Reilly sai…… -
Java method call parser?
I need to resolve some method calls, including the entire signature in some Java classes, for example: public class My……