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Tip Bank > Tasks and Techniques > String Manipulation

String Manipulation

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A Simple Password-Checking Routine
by Brian Abernathy
Here's a simple password-checking routine that ensures that the user-entered password matches specific password criteria.
Convert a Delimited String to a Generic List<string>
by Srinath MS
Split the string at the delimiter and then add each item to a new string list.
Using String.split(String) vs. Using a StringTokenizer
by Hrudananda Pattanaik
It's not always safe to use String.split(String). Consider using the String Tokenizer API instead.
Comparing Constant Strings with String Variables
by Ritesh Patel
Avoid NullPointerExceptions by comparing string constants with string variables—not the other way around.
Displaying Embedded Newline Characters from ASP.NET Resource Files
by Deepankar Sinha
Embedded newline (\n) characters don't display properly in the browser, but a simple character-replace operation does the trick.
Create an XML File or XmlDocument Directly from a StringBuilder
by Julio Henriquez
Creating an XML file (or XmlDocument object) using a StringBuilder is easier than working directly with the System.Xml.XmlDocument Class.
Build a Custom Formatter for a Java.util.logging Logger
by Leonard Anghel
See how to develop a custom log formatter and customize the formatter for your logging needs.
Handling Null Session and Request Variables
by Jarzebowski Mark
In ASP.NET, if you try to use a session or request variable before it has been set, you'll get an error.
Use GetBetween to Parse a String Between Two Strings
by Zachary Edwards
This tips shows how to use GetBetween to parse a String between two strings.
Truncate a Path String
by Srinath MS
Currently, there is no .NET class that provides this functionality. The workaround is to use the Windows Shell function (PathCompactPathEx).
Changing the Style of a String in JavaScript
by Deepak Choudhari
JavaScript's String object provides funtions that change the style of the text while it displays in the UI.
Encode and Decode URLs Using UTF-8
by Leonard Anghel
This tip shows you how to encode and decode your URLs using the UTF-8 character encoding.
Read a Tab Delimited Text File
by Arun Thomas
This tip shows how to read from a log file using a specified format.
A Function to Determine Whether a String Can Be Converted to a Number
by Roberto Chiavolini
Find out how to determine whether a string can be converted to a number.
Converting Numbers to Strings
by Baddy R
Instead of writing your own function to convert an integer or float to a string, just use the C function snprintf (in the stdio.h header) or the C++ class stringstream (in the sstream header).
Write a VB6 String that Contains Double Quotation Marks
by Xianzhong Zhu
There are typically two ways to express the string that contains double quotation marks.
Concatenating Strings
by Anthony Burke
When you're concatenating only a few strings, it's faster to add them than to use StringBuilder.
Passing Strings Between Delphi DLL and VBA
by Romeo Besas
Unlike other routines, this one doesn't need to pass the length of the returned string for later Trimming in VBA.
Create a Color Using "<<" and "|" Operators
by Leonard Anghel
This tip shows you how to create the RED color using the "<<" and "|" operators. After that, the color is used to fill a rectangle.
Use the XSLT 2.0 Character-map Element to Replace Characters
by Leonard Anghel
Here's an example of how to use XSLT 2.0's new character-map element to replace a character (or group of characters) with another character (or group of characters) on the transformation runtime.
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