I like to have these two methods in my toolbelt, even though it's syntactic sugar, I think it aids clarity.

MySQL 5.x Stored Routines, PHP Session Values, a little CSS oh my! Complex to set up but easy to impliment. Geared toward security, simplicity (of use) and convenience.

This routine will get an image stored in a SQL database (IBM Informix shown here) as a BLOB and return it to the screen.

To place this on an HTML page simply add

I have an MD5 hashed version as well, but can't share that...(So you can have encrypted id's passed)

Have fun,
Jeremy

The easiest way to give columns in a DataGrid the look you want is to use a DataGridTableStyle and to add a GridColumnStyle for each column in the grid.

Adds any character at the given index of a string.

NOTE: Count starts from 0

This simple function simply removes the character at the given index from a string.

NOTE: The count starts from 0

create a random string of 16 chars

I use something similar to this in an application named Shock 3. It provides you with your own Custom settings that can handle your own Custom types as well.

Function that splits a given string into sections based on the allowed length for a section. Does not split words up. Splits string on Space character (can be set to another character)

To create a chatprogram in java we need 2 classes one for Client and one for Server from which the client will be able to connect and exchange text messages. to compile the code simply type these commands in command prompt window:-
1)ipconfig(memorize the Ip address)
2)javac client.java
3)javac server.java
4)java server 10.69.23.203 (You need to type your own ip address)
5) After this you need to open another command prompt window(Make sure the server command prompt window is also open). now type:
java client 10.69.23.203
Thats it.
if anyone have any problems please post a comment and i will answer all of your questions or if you are having trouble in compiling.

This class intended to collect TODO comments from java/c++/etc source files.

Example:

protected readFileData (String path) throws IOException {
// TODO: add try...catch block for IOException
InputStream is = new FileInputStream(path);
...
}


See also DirectoryScanner class.

Configurable number formatter.

What is Dijkstra Algorithm? click on the link above and first understand what the algorithm is all about. in short it calculates the shortest path from A to F or vise versa. This code i can guarantee is the simplest and easiest code to understand. just search on google and try to compare this code and other dijkstra code and you will see what i am talking about. i spent alot of time myself and my instructor to guide me on the rite path.
http://en.wikipedia.org/wiki/Dijkstra%27s_algorithm(Description)
to see how the algorithm really works go on this website it tells you step by step how to update the cost and which path to choose.
http://renaud.waldura.com/doc/java/dijkstra/
Please give some time to understand the algorithm first and then you can see my code. if you done understand the algorithm it is very useless. i know alot of people need Dijkstra algorithm in java for their HW assignment or Test. i am giving you the solution step by step. anyone who wants to understand please go to the url i have posted above and once you have understand then run the code and for those people who just want to copy so that they can get 90% in their test No Problem Here it is .
First open a notepad and name that file anything like data.txt or datas.txt and make sure the file looks something like this and in this format.
0 3 100 5 100 100 (100 represents infinity)
3 0 6 7 7 100
100 6 0 5 5 3
5 7 5 0 1 100
100 7 5 1 0 2
100 100 3 100 2 0
i name this file as a data.txt file. i have 6 nodes. and A is always the starting node which has the cost of 0 so by looking at the first line i
know that A to A have distance 0, A to B is 3, A to c is Infinity, A to D is 5, A to E is Infinity(means no edge connected with A), A to F is Infinity.
for second line(B to A is 3, and then vise versa) and for the 3rd line it starts for C and etc..
save the txt file by any name and then copy the code which i have posted and then to run type this:
javac routing.java
java routing data.txt
you will get the output. i will say this one more time understand how the algorithm works or ......................

Two very usefull functions to have around.

(note: dollarfy requires commify to work)

I use this function when passing an array to a function being called from setTimeout();

Similar to Perl's CGI::escapeHTML(), though (because we can!) this adds it as a method to all String objects.

Turns any string backwards. If you input "Test" it gives out "tseT". Hope it's useful.

The snippet shows how to use it.

The modus operandi for this is similar to that taken by PHP's implementation of such functions. It's comparitively memory-intensive, but is much faster than running a whole bunch of tests.

Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.

And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().

One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )

Description:
Call one of the overloaded functions and a you will have a randomly generated password.

Generate() - Will generate a password 13 or (more/less) characters in length ranging from A-Z a-z 0-9 and other characters such as @ # %... etc.

Generate(ByVal AsciiMin As Integer, ByVal AsciiMax As Integer)
Generate(ByVal AsciiMin As Char, ByVal AsciiMax As Char) - Allows you to set your ASCII range if you wish not to include number for example.

Generate(ByVal ExcludeValues As String()) - Works like Generate() buts characters passed in the array will not be used to generate the password.

Generate(ByVal AsciiMin As Integer, ByVal AsciiMax As Integer, ByVal ExcludeValues As String())
Generate(ByVal AsciiMin As Char, ByVal AsciiMax As Char, ByVal ExcludeValues As String()) - Works like Generate(ByVal AsciiMin As Integer, ByVal AsciiMax As Integer) & Generate(ByVal AsciiMin As Char, ByVal AsciiMax As Char), but allows you to also exclude characters that you do not wish the generator to use.



UPDATE
03/06/2006: Included use of Phill64's TrueRandom2 class for generating random numbers. Also overloaded the constructor so that a length can be set for the password, if the length is not set the default is set to 13.

This could be used for any type of simple hash checking. It could also be used to store a "password" that had to be verified. This code is completely managed.

Returns a percentage. There are 3 arguments.

1. complete - How much is done?
2. total - How much is there?
3. maxPercentage - Total percentage possible, usually 100.

Simple, yep.

Loading and Saving an ArrayList to/from any given path.

An all in one function that formats a given file's Size from bytes to gB.

Have you ever tried to use Color.Blue.ToString and gotten undesired results?
Or have you ever tried to save a color to an INI and not be able to reproduce it the next time around?

The methods below will help you in your conquest of converting the Color structure to HTML (#FF0000) and back to a Color structure again.

Generates an 88 character secure hash string for the passed in strings.

Counting for loop in VB.NET. Looks easy because it is, but I saw one submitted for PHP.

This function loads an File into an String.

This function provides the reverse of a string. It is constructed using string builder because strings in .NET are immutable, while stringbuilders are not. Therefore large strings could be slow to reverse if a regular string was used for the working value that is returned.

This function returns a stack trace for an exception with all inner exceptions include unless the count of inner exceptions goes over 50. A stack overflow can occur if there is no upper limit for inner exceptions to read from.

Makes use of stringbuilder to build return string in order to yield higher performance.

Returns a string collection of IP addresses for a passed in domain name.

One of best and unknown built in string function included in .NET is String.Split(). It has come in quite handy for my in the last 2 years that I thought I'd share. Pretty basic example here...and for my first post, I thought I'd throw in a little File IO (for free of course)! This was written in .NET 2.0 and it will take little to no modification to make it work in 1.0/1.1.

This litle snippet shows how to store passwords and then check inputed passwords if they are correct.

(In this snippet we use som pseduo code for the database connection).

Gets a regular expression that'll search for any regexp pattern specified in the parameters.

Gets the rightmost substring, of the specified length, from a String object.

Util Class with methods for executing datasets, nonquerys, sending mails, etc.

Simple Connection Class.

Sometimes you need to remove slashes from POST variables which could contain arrays. The standard slipslashes-function only takes a string as parameter.

This function removes slashes from both a simple string and array variable.

Generate a random number or string in PHP.

Convert an irregular name=value pair string into a formatted array.

Given a string, you can return an Enum value

Originally found at http://codeproject.com/dotnet/EnumTips.asp?df=100&forumid=38264&exp=0&select=797671

Fixed the regular expression to check for more strict requirements.

This function calculates how many lines will text occupy.
Example (simple):


$string = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Phasellus tincidunt posuere dolor";

$num_lines = how_many_lines(10, $string);

It accepts a third, optional, parameter $options, that allows you to change behaviour. $options should be array. Following configuration options are available:

'white_spaces' - default: array(' ', "\t") - array of chars, that should be treated as whitespace.

'new_lines' - default: array("\r\n", "\n") - array of strings, that should be treated as newlines. For example, for HTML you can set 'new_lines' => array('');

'force_line_breaks' - default: true - force wrapping, when the token is longer than width, or not. If set to false, and token cannot be fitted into $width, function will return false;

'callback' - default: null - callback function for determining character width. Must accept at least one parameter - $char

'callback_params' - default: array() - optional additional callback parameters

'char_widths' - default: null - associative array in a form $char => $width, which contains char width. If $char is not found in the array, it's width is defaulted to 0.

Format Bytes

Remove newslines from a string.

Databinding in asp.net 2.0 takes very few lines of code. This example shows how to bind a CheckBoxList using a SqlDataSource.

Databinding in asp.net 2.0 is takes very few lines of code.

If you have ever written a website or java application where people paste stuff in from Word, you are likely to have hit the problem of Word using high ascii chars for "open quotes", "close quotes", reg symbol, etc...

This java class (with a single static method) can replace the most prevalent of these with normal ascii values

Hope it helps someone...

Convert a password returned by JPasswordField::getPassword() into a String.

From RSA Security's website:
"RC4 is a stream cipher designed by Rivest for RSA Data Security (now RSA Security). It is a variable key-size stream cipher with byte-oriented operations. The algorithm is based on the use of a random permutation. Analysis shows that the period of the cipher is overwhelmingly likely to be greater than 10^100. Eight to sixteen machine operations are required per output byte, and the cipher can be expected to run very quickly in software. Independent analysts have scrutinized the algorithm and it is considered secure."

This implementation encodes the byte stream to be encrypted "in-place".

Example:
Byte[] Key = new Byte[5] { 12, 34, 22, 12, 32 };
Byte[] B = new Byte[10] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
// Examine B array before and after this next call.
RC4(ref B, Key);
// Examine B array before and after this next call.
RC4(ref B, Key);

Formats milliseconds into a duration string.

Proper Paragraphs

LCase Functio

Parsing a String for Numbe

Return a Portion of a Character String

Get Selected Values From a CheckBoxList in C#

Dynamically Populate a CheckBoxList in VB.Net

Random String

List Files in a Directory in VB.NET

Random String Generato

Is String Numeric

Is String Empty

Strip HTML Tags From a String

Strip HTML Tags From a String

Send Basic Email

Strip HTML

Truncate String