A common myth among programmers says that you can avoid calling delete in your application because the operating system will release the allocated memory when the application terminates anyways. Indeed,

‘ search for a string starting at a given index’ and return the index of the character that follows’ the searched string (case insensitive search)Function InstrAfter(Source As String, Search As

‘ convert a telephone string into a phone numberFunction PhoneNumberFromString(ByVal PhoneString As String) As String Dim i As Integer Dim acode As Integer Const PhoneDigits = “22233344455566677778889999” ‘ prepare result

Here’s a short code snippet that lets you programmatically open and close the CD door. Note that not all the CD drives support these functions: Private Declare Function mciSendString Lib

‘————————————————-‘ LINKED LIST class module” This class implements a linked list structure, where you can store’ values (appending them after the last element or inserting them at’ given indexes), remove

‘ ————————————————————————‘ The CBITARRAY class” simiulates an array of Boolean values’ saves memory by packing one element in one bit” IMPORTANT: you make make ITEM the default member for this

‘————————————————–” The CQUEUE class’ Dim qu As New CQueue” ‘ enqueue to items to the queue’ qu.Enqueue 1234′ qu.Enqueue 5678′ ‘ display number of elements in the queue’ Debug.Print “Count

‘————————————————–” The CSTACK class” Usage:’ Dim st As New CStack” ‘ push two values on the stack’ st.Push 1234′ st.Push 4567′ ‘ display number of elements in the stack’ Debug.Print

‘———————————————-‘ HASHTABLE class module” This class implements a hashtable, a structure that offers many’ of the features of a collectior or dictionary, and is often’ even faster than the built-in

When using a variable as a loop index, it is common to use single-letter variable names. This is a bad practice, because it can make it difficult to find all

Creating controls in Palm OS is very useful. It gives vital power to the programmer in creating applications. There are various controls in Palm OS like buttons, check boxes, radio

There are two ways in SQL Server to execute a T-SQL statement that has been dynamically built. The most common one is using EXECUTE to run it: EXECUTE @sqlstatement In

Selecting the top N rows in a table is no problem in SQL Server, but how to select the 2N to 3N rows is not as clear. Using the following

Here is sample code: import java.security.SecureRandom;public class UniqueNumberGenerator{ static final SecureRandom random = new SecureRandom(); static final StringBuffer buffer = new StringBuffer(30); static { random.nextInt(); } public static String getNextUID()

It seems common knowledge that I/O streams and JDBC database connections are resources that need to be released as soon as they are no longer needed. Not so common knowledge

Many books about JDBC and most of JDBC-related sample code floating around seems to assume that JDBC is used directly, meaning that database connection is established by the DriverManager, and

If you’re like me, and sometimes need to modify Active Directory data from an ASP page where the user is either anonymous, or doesn’t have admin privileges, you need a

The equals() method in the String class is commonly used to compare two strings for equality. However, this method returns true only if the argument is not null and is

This is a fast and versatile function for loading comboboxes.I have not included a ComboBox.Clear, to make it possible to load multiple recordsets to the combobox. This makes it more

One of the many functional methods of rolling back transaction(s) in a VB application is as follows: 1) In the procedure containing the Begintrans/CommitTrans methods, declare a Boolean Procedural variable

One of the best ways to improve performance in a distributed application is to avoid sending unchanged data back to the server for updating. I use the following strategy to

Here is a function for extracting the ID3 tag from a MP3 file. Add the following lines of code into a Module: Public Type ID3Data Tag As String * 3

Double buffering is a process of doing all the drawing first in the memory and then displaying the entire screen at once. It is called double buffering because two drawing

Have you ever gotten a nasty error when using

This is a bit tricky. You can

Suppose you have some C++ code that you’d like to convert to the Java programming language. While doing the conversion, you come across the following code: void getStats(int data[], int&

The performance of

When using a timer control, it is important to prevent re-entry.This occurs when the processing in the _Timer event takes long enough to still be executing when the next _Timer