westwin的专栏

import junit.framework.TestCase;import junit.framework.Assert;public class TestStringIdentical extends TestCase { public void [color=red]testTwoConstantStringAreTheSame[/color]() { Asse...

As we know ,jdk API doc suggests to use wait() always in a loop as below: As in the one argument version, interrupts and spurious wakeups are possible, and this method should always be used in a l...

refer to http://weblogs.java.net/blog/2006/02/13/what-mxbean

Two links about UCMThe power of Unified Change Managementhttp://www.ibm.com/developerworks/rational/library/701.html UCM with SVNhttp://www.riedquat.de/articles/UCMwithSVN

Document Type Declaration http://en.wikipedia.org/wiki/Document_Type_Declaration Formal Public Identifierhttp://en.wikipedia.org/wiki/Formal_Public_Identifier

http://css-tricks.com/css-sprites/http://spriteme.org/

http://java.sun.com/blueprints/corej2eepatterns/Patterns/DataAccessObject.html

The XML declaration typically appears as the first line in an XML document. The XML declaration is not required, however, if used it must be the first line in the document and no other content or whit...

I added to my “.vimrc” file:map <F2> <Esc>:1,$!xmllint --format -<CR>Now I can press “F2″ button, and vim indents the text.   

http://gps.about.com/od/glossary/g/Heading.htm Definition: The compass direction toward which a traveler or vehicle is (or should be) moving. Examples: "This heading will take us to ...

http://hi.baidu.com/hy0kl/blog/item/5508384fec1ec438aec3ab0e.htmlhttp://hi.baidu.com/hy0kl/blog/item/6151c3dcb0f789afcc116616.htmlhttp://hi.baidu.com/hy0kl/blog/item/caf7383baf4ffae414cecb12.html...

What is Optimistic Locking vs. Pessimistic Lockingfrom http://www.dbasupport.com/forums/archive/index.php/t-7282.html These are methodologies used to handle multi-user issues. How does one h...

http://archive.plugins.jquery.com/project/overlabel

http://www.janeve.me/articles/which-java-collection-to-use

this is fun.http://tutorials.jenkov.com/java-servlets/gzip-servlet-filter.html GZip HTTP HeadersThe browser includes the Accept-Encoding HTTP header in requests sent to an HTTP server (e.g. a...

http://www.adequatelygood.com/JavaScript-Module-Pattern-In-Depth.html 

copied from http://tutorials.jenkov.com/java-concurrency/locks.html  Notes:This tutorial is a very easy to read and understand version of java concurrent lock mechanism. I do suggest to take a look....

copied from http://java.sun.com/j2se/1.5.0/docs/tooldocs/share/jps.html  jps - Java Virtual Machine Process Status ToolSynopsis Description Options Host Identifier ...

It's my first time to touch Struts. Here refers to Struts 2.1.8.1.  The Hello World is deployed under Tomcat 6.0.20.  The error is caused by a typo error of the struts tag url , should be <%@ t...

Explainations of Thread.State: /** * Thread state for a thread which has not yet started. */ NEW, /** * Thread state for a runnable t...

java.lang.StringBuffer: thread-safe(之所以是thread-safe的是因为它的所有方法(构造函数除外)都是synchronized的)java.lang.StringBuilder: not thread-safe, much faster than StringBuffer since no synchronization.StringBuilder...

import junit.framework.TestCase;import junit.framework.Assert;import java.lang.reflect.Field;import java.lang.reflect.Modifier;import java.lang.reflect.Constructor;public class TestReflectio...

import junit.framework.TestCase;import junit.framework.Assert;import java.lang.reflect.Method;import java.lang.reflect.Modifier;import java.lang.reflect.Proxy;import java.lang.reflect.Invoca...

refer to http://www.saxproject.org/QuickstartThis document provides a quick-start tutorial for Java programmers who wish to use SAX2 in their programs. RequirementsSAX is a common interfac...

refer to http://www.xml.com/pub/a/1999/01/namespaces.htmlXML Namespaces by Exampleby Tim Bray January 19, 1999  January 14th saw the arrival of a new W3C Recommendation, Namespaces ...

 Why clone() is protected rather than public ?一直以来不明白，网上给的解释貌似也不合理，看到sun的bug repository上的一个帖子，感觉这是sun的一个bug，参见http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4098033Bug ID: 4098033...

Why a trap ?First ,let's take a look at the comments of this API provided by Sun:    /**     * Returns the same hash code for the given object as     * would be returned by the default method ...

copy from http://www.cavdar.net/2008/07/21/junit-4-in-60-seconds/  played with JUnit 4 library this weekend and here is the short introduction to it:@Test Mark your test cases with @Test ...

private void reverse(Object[] anArray){ if (anArray == null){ return; } reverseArgrithmTwo(anArray); } // private void reverseArgrithmOne(Object[] anArray){// int maxIndex = an...

copy from http://www.janeg.ca/scjp/lang/arrays.html Array declarationsarrays are Java objects all Java arrays are technically one-dimensional. Two-dimensional arrays are arrays of array...

copy from  http://www.janeg.ca/scjp/oper/promotions.html#unary Operators and Assignments - Numeric PromotionUnary Numeric Promotionthe Unary operators + and - when applied to byte, char o...

copy from http://bbs.et8.net/bbs/archive/index.php/t-876835.html feiyan2007-08-26, 16:46Debug into rt.jarAugust 4th, 2007 If you ever use Eclipse trying to debug into Java’s system A...

Given that there are many cases where it is necessary to communicate between plug-ins in different sandboxes, what can we do?1. We can communicate through a shared data structure or event passing ...

copy from http://blog.cornetdesign.com/2008/05/unit-testing-equals-and-hashcode-of-java-beans/ Unit Testing Equals and HashCode of Java Beans Posted on May 28th, 2008 We’ve been c...

well written.http://samizdat.mines.edu/howto/HowToBeAProgrammer.html?x