With JavaScript, it is possible to execute some code at specified time-intervals. This is called timing events.
It's very easy to time events in JavaScript. The two key methods that are used are:
setInterval() - executes a function, over and over again, at specified time intervals
setTimeout() - executes...
Wednesday, July 17, 2013
Tuesday, July 16, 2013
Java - Memory Analyzer
A. To generate HEAP DUMP in Memory Analyzer:
Project>Run Configuration> Arguments
-XX:+HeapDumpOnOutOfMemoryError
Heap dump will be generated when the out of memory occurs
B. Use MAT to open...
Tomcat - loading additional libraries
Create Sub Folder in Tomcat Lib
Define those paths in shared.loader property of /conf/catalina.properties file.
#################
shared.loader = ${catalina.home}/lib/novell/*.jar, ${catalina.home}/lib/mail/*.j...
Java Memory Analyser
VisualVM with Tomcat
1. adding these paramater into catalina.out
set JAVA_OPTS=%JAVA_OPTS% -Dcom.sun.management.jmxremote=true
set JAVA_OPTS=%JAVA_OPTS% -Dcom.sun.management.jmxremote.port=3333
set...
Java - loop to iterate over enum
public enum Direction {
NORTH,
NORTHEAST,
EAST,
SOUTHEAST,
SOUTH,
SOUTHWEST,
WEST,
NORTHWEST
}
for (Direction dir : Direction.values()) {
// do what you want
}
Reference:
http://stackove...
Thursday, July 11, 2013
How do you test to see if a double is equal to NaN in Java?
Use the static Double.isNaN(double) method, or your Double's .isNaN() method.
Simply doing:
if (var == Double.NaN) {
...
}
Reference:
http://stackoverflow.com/questions/1456566/how-do-you-test-to-see-if-a-double-is-equal-to-nan-in-j...
Java - Bytes to Image & vice versa
package org.configurator.pdfgenerator.utils;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.xerces.impl.dv.util.Base64;
public class...
Java - Generate Image from Google Maps
Beside this API, Google Maps also provides an URL based API for
extracting static Google Maps directly into desktop application, without
requiring JavaScript or access keys. This API is very well explained
here: http://code.google.com/apis/maps/documentation/staticmaps/index.html.
public class ImageUtils...
Tuesday, July 9, 2013
Open Data Tools
http://openrefine.org/
http://datawrapper....
Monday, July 8, 2013
jQuery - serializeArray
serializeArray for uncheck checkboxes
Trick:
<input type='hidden' name='check' value='false'/>
<input type='checkbox' name='check' value='true'/>
jQuery.serializeArray();
serializeArray fieldset doesn't work in IE / Safari
Use 'form' instead of 'fieldset'
<form class="myFieldset">
...
Friday, July 5, 2013
Flex - PHPEclipse Plugin
Step 1 :
Begin the installation from the Flex Builder Help menu item.
Step 2 :
...
