A very simply way to collect the keys of a dictionary object to iterate through them is given bellow –

List<string> keyList = new List<string>(myDictionary.Keys);
for (int i = 0; i < keyList.Count; i++)
{
    int myInt = myDictionary[keyList[i]];
}

First of all HasSet is different then Dictionary and Hashtable cause it does not allow duplicate value and elements inside a HashSet cannot be accessed through indices, only through an enumerator (which is an iterator).

Now the difference between Dictionary and Hashtable is though Hashtable takes in a key/value pair, but...

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HashSet has been introduced in framework 3.5. It inherits the ICollection interface. HashSet cannot be accessed through indices, only through an enumerator.
HasSet is modeled upon mathematical set. It has methods such as Union, Intersection, IsSubsetOf, IsSupersetOf.
Add method of HashSet is boolean unlike List. HashSet allows only unique...

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Bellow are the steps required to execute a sql script using sqlplus

Start listener
$ lsnrctl start

Login to sqlplus
$ sqlplus username/password (if using sys then “sys/password as sysdba”)

Start the database
sql>startup

Turn on spool...

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First go to settings->Privacy settings. Select the following option -

“I would like my blog to be visible to everyone, including search engines (like Google, Sphere, Technorati) and archivers”.

Then go to appearance->editor and select Header.php. Here...

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Here is a simple example of using pl/sql in oracle

– To enable output
SET SERVEROUTPUT ON;
– declare necessary variables
DECLARE
caseNumber    NUMBER;
name    VARCHAR(200 BYTE);
grade    VARCHAR(1 BYTE); 
BEGIN
– Lets consider we have a package named “SamplePackage” and it has a procedure named
– “SampleProc” which has...

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If you are looking to get all table name and column in a oracle schema you can use the following query

SELECT * FROM DBA_TAB_COLUMNS WHERE OWNER = 'schema_name' ;

If you want to get column names of a specific table then you can use the following query

SELECT * FROM DBA_TAB_COLUMNS...

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Found a great function for image resize in php. It requires php >= 4.3.0.
I found the source in
http://www.akemapa.com/2008/07/10/php-gd-resize-transparent-image-png-gif/

<?
function resize($img, $w, $h, $newfilename) {
    #
    //Check if GD extension is loaded
    #
    if (!extension_loaded('gd') && !extension_loaded('gd2'))...

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Here is a very simple structure of how to use curl with post method –

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,'http://example.com/target.php');
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);	
curl_setopt($ch, CURLOPT_POST , 1);// setting up to use post method
curl_setopt($ch, CURLOPT_POSTFIELDS, array("fieldName1"=>"data1","fieldName2"=>"data2"));							
$content = curl_exec($ch);
curl_close($ch);

I created a cron job which needs to run every 5 minutes. So it was sending me 12 emails per hour and my inbox got overwhelmed by email pretty soon. I had plesk control panel and plesk won’t let you leave email field empty so I started to look...

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