Recent Posts
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Controlling logging levels through the WebSphere administrative console
I have a web application in which I use Java util. logging. In my logging In the properties file, the default level is…… -
Java Localtime parse exception
I have a piece of code that works normally and now somehow doesn't work I am reading a CSV file and an error occurred …… -
NoClassDefFoundError uses Scala classes from Java
I don't have Scala experience, so this problem may be basic According to the "person" example in this tutorial, I am u…… -
How to encrypt PDF using Java?
I've been trying to encrypt PDF using Java So far, I can successfully encrypt other file types (. TXT,. PNG, etc.) Whe…… -
Java 8 time zone conversion
In Java 8, I want to convert datetime from UTC to ACST (UTC 9:30) Input – > 2014-09-14t17:00:00 00:00 Output – >…… -
Java – simple XML parsing from XML to list
I use simple XML (simple-xml-2.6.2. Jar) to parse XML files, such as: <?xml version="1.0" encoding="UTF-8" ?> &…… -
Java – why not more boring GC
Except Azul, all GCS I know are concurrent, but at least there are some small worldwide components Why isn't there mor…… -
JMeter slave – server failed to start: Java rmi. RemoteException: cannot start Ip-10-142-111-66 is a loopback address
I created a quasi system EC2 Ubuntu server and only used hte to install JMeter to follow sudo apt-get install jmeter T…… -
Java – will closing datainputstream also close FileInputStream?
FileInputStream fstream = new FileInputStream(someFile.getPath()); FileInputStream fstream = new FileInputStream(someF…… -
How to use Java 8 stream iteration nested for loops to reference parent elements?
I want to use the Java 8 stream to iterate over the nested list and extract some results of the list at the first matc…… -
Java – find all concrete classes that implement abstract classes in eclipse
Click "F3" of change class in eclipse, Change change = refactoring.createChange(monitor); I can open class java. publi…… -
Is the Java hashtable #hashcode () implementation broken?
I wonder if the default implementation of Java's hashtable #hashcode () is broken when the hashtable only contains eac…… -
Java – what is the difference between static and non static annotations?
Java's internal classes can be static or non - static A non - static inner class is associated with an instance of a c…… -
Java – white package icon in my eclipse package Explorer
I received these strange white package icons in the test project From what I see@ http://jamie.ideasasylum.com/images/…… -
Why does Erlang process creation and messaging take less time than Java and C#
I searched Erlang's process model on the Internet and found some chart slides 3-4 in a speech by Joe Armstrong They sh…… -
Java. When creating a file using RandomAccessFile io. FileNotFoundException
When I tried to create a file using RandomAccessFile, I encountered FileNotFoundException: RandomAccessFile file = new…… -
Java – use the account manager to authenticate using the Google API
I've been trying to solve this problem for days I'm trying to dial Google calendar using authentication through Androi…… -
Java – change the default jlabel font
How do I set the default font for all jlabel instances Instead of setting the font for each jlabel separately Solution…… -
Java – programming spring MVC controller and JSP for httpdelete
I tried to delete an entity on a page by deleting a link (a href) or a delete button (form) I'm using the delete butto…… -
Strange behavior of Java argument*
I wrote this lesson: public class ListArg { public static void main(String args[]) { for(int i=0;i<…… -
Java – displays tooltips above cells in JTable
When the user enters an incorrect value in it, I need to display a tooltip above (or below:) the cell (see the figure …… -
java – Selenium – driver. Getpagesource () is different from the source viewed from the browser
I tried to use selenium to capture the source code from the specified HTML file, but I don't know why. I didn't get th…… -
Java – how to delete / filter / ignore certain packages from Emma (code coverage)
I tried to delete some packages from my report and got into trouble Can someone help me? I use Emma in my ant process …… -
Why is line 17 of this Java program not executed?
As an exercise in my java course at uni this morning, I had to write a small program to ask users to enter some detail…… -
Error creating bean with name and singleton bean is not allowed
When I execute code through JUnit test case, I receive the following exception Can anyone suggest possible problems? T…… -
Java – how to use graduates to delete specific permissions when building Android applications?
Recently, Google automatically merged licenses from Google services to the final version of APK My problem is that som…… -
Java – link from HTML to JSP
In dynamic web projects, I have – default HTML page <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" …… -
Java – please recommend the view technology used in spring MVC 3 applications
I am looking for which view technology is considered the best method of spring MVC 3.0. It is flexible, maintainable a…… -
Java – softreferences and weakreferences / outofmemoryerror
There was a problem processing soft and weak references The code has a flag that can be switched The code is a little …… -
Java – change the color of the up arrow and mark it as a private warning
After defining a custom color for the backward arrow in the action bar, a warning is returned What can be done to get …… -
Java – isn’t log4j thread safe after all?
(this is in sles11, Java 7, Tomcat 6, log4j-1.2.16) We use log4j to write different things to different log files I in…… -
Java – how to instantiate unit in scala?
All I want is to use some concurrent sets (they don't seem to exist at all) Java uses Java util. concurrent. Concurren……