how to create user defined Objects in Javascript

I am really a fan of javascript as it is quite easy as well as complex. 

Here is the example of how to create objects in javascript i.e. User defined objects which is very usefull in handling large amount of data from the inout forms controls quite nicely.

How to retrieve System Properties in Java

Here is the example of retrieving the System Properties through Java Code. In this program I have retrieved and displayed few System Properties.

The primary method which actually retrieves the property is System.getProperty(), and it takes key info as a parameter.

For details of all the System Properties and how it can be retrieved, you can visit my earlier post about How to retrieve System Properties through Java. You can generate the XML file of all the key-value pair of the properties and then you can use any if the key's from the XML file, in the below program to get the info in Java Code.

RetrieveSystemProperties.java
----------------------------

public class RetrieveSystemProperties
{

/*
File : RetrieveSystemProperties.java
Purpose: Retrieves and displays the System Property details
Author : Anaparthi Subrahmanyam
Published: 2008-12-27
Usage Notification: Author doesnt own responsibility of any loss of data,
responsibility for misuse or loss of any nature if this code is used. If possible,
please provide link to this webpage
*/
public static void main(String[] args)
{
try
{
/*
the below functions will retrieve the System Properties of the System
*/

// retrieving Operating System Name of the machine
System.out.println("Operating System Info: "+System.getProperty ("os.name"));

// retrieving Unicode Encoding
System.out.println("Unicode Encoding Info: "+System.getProperty ("sun.io.unicode.encoding"));

// retrieving User Language
System.out.println("Operating System Info: "+System.getProperty ("user.language"));

// retrieving Operating System Name of the machine
System.out.println("User Language Info: "+System.getProperty ("sun.management.compiler"));

// retrieving Desktop Information
System.out.println("Desktop Info: "+System.getProperty ("sun.desktop"));

// retrieving Sun Compiler name
System.out.println("Sun Compiler Info: "+System.getProperty ("sun.management.compiler"));

// retrieving Operating System patch level
System.out.println("Patch Info: "+System.getProperty ("sun.os.patch.level"));

// retrieving File encoding package
System.out.println("File encoding package Info: "+System.getProperty ("file.encoding.pkg"));
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
----------------------------

Please provide your comments, i will really appreciate it.

How do I retrieve the System Properties on Windows Machine using Java

There are different ways to get the System properties of a System or Machine using Java Program. 

The following code first create a file called SystemProperties.xml and then retrieves all the System Property using Java's own function called getProperties() of Properties class and finally dumps it to the the created XML File.

SystemProperties.java

--------------------------------------------

import java.util.Properties;

import java.io.PrintStream;

import java.io.File;

/*

  File   : SystemProperties.java

  Purpose: Dumps all the System Properties and values to a XML file

  Author : Anaparthi Subrahmanyam 

  Published: 2008-12-27

  Usage Notification: Author doesnt own responsibility of any loss of data, responsibility for misuse or loss of any nature if this      code is used. If possible, please provide link to this webpage

*/

public class SystemProperties 

{

  public static void main(String[] args) 

  {

    try

    {

       File f = new File("SystemProperties.xml");

       //if creating a file called SystemProperties.xml, if returns false, exception will be thrown

       if(!f.createNewFile())

       {

          throw new Exception("Exception encoutered may be due to the file already exist.");

       }

       Properties prop = System.getProperties();

       // opening file in print stream so that later this stream will be used to write 

       PrintStream pst = new PrintStream(f.getName());

       // Passing three parameters to the storeToXML.

       //1. printstream

       //2. Comment to the XML File 

       //3. encoding format

       prop.storeToXML(pst,"System Properties details", "UTF-8");

       System.out.println("Sucessfully dumped the System Details to the file: " +f.getName());

    }

    catch (Exception e)

    {

      System.out.println("Error: "+e.getMessage());

    }

   }

}

-----------------------

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