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Created by Dr. Xi on May 02, 2011 15:59:37    Last update: February 25, 2012 09:16:37
This code snippet gets the default keystore used by the Java keytool and displays the list of aliases along with the key type (certificate or private key). import java.io.File; import java.io.FileInputSt... The default keystore used by the above code is: $HOME/.keystore .
Created by James on January 11, 2011 22:08:26    Last update: February 03, 2012 11:23:25
By default Firefox puts a dotted line box around the link or button label when you click them. Sometimes it's annoying and makes your sexy buttons look ugly. You can get rid of the dotted lines for links with outline:none in CSS, but that doesn't work for buttons. <!doctype html> <html> <head> <style t... For buttons you need " button::-moz-focus-inner { border: 0; } ": <!doctype html> <html> <head> <style t... I've also seen this: /* get rid of those system borders being generated... For more information : Remove Button Focus Outline Using CSS
Created by timo on January 25, 2012 20:13:13    Last update: January 25, 2012 20:13:13
The MIPS CPU is able to run both big-endian and little-endian. So a system built on MIPS can be either big-endian (mips) or little-endian (mipsel). The file command shows the architecture: $ file ls ls: ELF 32-bit LSB executable, MIPS, ... but readelf will tell the endianness: $ readelf -h ls ELF Header: Magic: 7f 45...
Created by Fang on November 10, 2011 09:26:12    Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines! <?xml version="1.0" encoding="UTF-8"?> <xsd:sch...
Created by Dr. Xi on July 11, 2011 12:24:10    Last update: July 11, 2011 12:25:44
This code snippet import java.util.*; public class UncheckedCast ... fails with a compilation error and a warning: $ javac -Xlint:unchecked UncheckedCast.java Unc... Because List<String> is not a reifiable type, the Java Runtime does not have enough information to verify the type or do the type casting. This is fixed by changing List<String> to List<?> (or to the raw type List ): public static void main(String[] args) { Ob...
Created by alfa on July 01, 2011 13:16:12    Last update: July 01, 2011 13:16:12
This is a simple doclet that prints all public methods and their parameter names and types. Code import com.sun.javadoc.*; public class List... Compile javac -cp $JAVA_HOME/lib/tools.jar:. ListMethodsDo... Use javadoc -doclet ListMethodsDoclet -sourcepath /pat...
Created by alfa on May 27, 2011 11:19:29    Last update: May 31, 2011 07:56:26
This is a utility to convert a string value to one of the primitive type values. It is useful in Java reflection code where the value comes in as a string (e.g., from XML parsing), and the type of the value cannot be decided until runtime. import java.util.*; import java.lang.reflect.*;... Note: This method can be extended to convert string to more complex types by writing a converter for the destination type. For example, to convert string to date: public class DateConverter { public static ... Usage: Date d = (Date) ConvertUtil.convert("10/12/2010", ...
Created by alfa on May 26, 2011 14:23:33    Last update: May 26, 2011 14:25:42
For Java arrays, the class name is [ followed by an encoded name of the element class. The number of [ characters represents the number of dimensions of the array. The class name encoding is following: Element Type Encoding boolean Z byte B char C class or interface L classname; double D float F int I long J short S Example: public class ClassNameEncoding { public sta...
Created by alfa on May 24, 2011 16:08:34    Last update: May 24, 2011 16:09:02
There are two ways to get the Class object for primitive types: Type name followed by .class : Class intClass = int.class TYPE field for the corresponding wrapper class: Class doubleClass = Double.TYPE; Class.forName() does not work for primitive types. But it works for primitive arrays: Class c1 = int[].class; Class c2 = Class.forNam...
Created by alfa on May 24, 2011 15:59:41    Last update: May 24, 2011 15:59:41
Java reflection with Apache beanutils example. import org.apache.commons.beanutils.MethodUtils; ...
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