Question: I am trying to create an array of 256 hexidecimal values but am havingsome problems. How do I create a valid array using hexadecimals? Answer: Whether you use hexadecimal

Question: I am trying to write a template that somewhat resembles how an inner class works in Java: template class Callback{public: Callback(T& t) : parent(t) { } void Execute() {

Question: Can a constructor in Java be declared as protected? Answer: Yes, Java constructors can be declared as protected. You will usually declare protected constructors when you do not intend

Question: I have a text field in a table that returns the entire field when queried. As soon as I create a view in SQL Enterprise Manager though, the text

Question: Can you tell me if there’s a way that I can force the mouse to move to a certain position on the screen, e.g. 20 pixels down, 15 pixels

Question: What is the future of Informix with Oracle and others seeming to pull so far ahead? Answer: Granted, I am a dyed-in-the-wool Informix bigot, but here’s my take. Disclosure:

Question: How are public folders archived? I have not been able to find a way to set the archival schedule on a public folder. Answer: Public folders aren’t archived, per

Question: Given: pre>typedef struct{ byte a; byte b; byte c; byte d; byte e;} LETTERS; sizeof(LETTERS) returns eight bytes because of padding by the compiler for alignment.How can I determine

Question: When I creating a class, I declare several large arrays, and some integers within one ofof class function members.Within main, I call new, making the object declared on the

Question: I have an MTS object that contains an ADO connection object which I use in an ASP page. I look at the MTS console and confirm that the package

‘ List all the File extensions that are registered in the system” return a bi-dimension string array, where’ arr(0, i) is the file extension’ arr(1, i) is the coresponding ProgID’

VB official documentation seems to encourage you to use “$-less” string functions, e.g. Left, LTrim or UCase, instead of their time-honored Left$, LTrim$ and UCase$ counterparts. If you do so,

The TreeView control exposes the AfterLabelEdit event to let the programmer validate the text entered in a Node, but there is no way to trap keys as they are typed

Visual Basic stores UDTs in unpacked format, that is it alignes all UDT elements to the double word (except that Integers and Boolean are aligned to the word, and byte

When dealing with proper names, you may want to capitalize the first letter of each word, e.g. convert “john smith” into “John Smith”. Under VB3 you had to write a

Here’s a simple test that you can use to determine whether the application is running on a system equipped with a Pentium CPU affected by the FDIV bug: ‘ return

The behavior of the LostFocus event has changed in the transition from VB4 to VB5. Under VB4, if a control on a form has the input focus and the user

The following is an example to handle errors in VB. It combines “On ErrorGoTo” and “On Error Resume Next” to handle all errors (minor orserious ones), as well as attempting

In JavaScript you can use isNaN to check if the given data is numeric ornon-numeric.Syntax : isNaN(testdata)ReturnValue :True if the testdata is non-numeric.False if the testdata is numeric.Here’s an example:

The following methods can be used for creating new instance of your classes, depending on your specific needs. import java.lang.ClassLoader;import java.net.URLClassLoader;import java.net.URL;public class InstantiateClass { testFinally newInstance() throws Exception {

Using the -verbose option during compilation and execution is very helpful&#151both for obtaining more information about the classes being loaded by the compiler and the interpreter and to find out

Once you are finished iterating through the values of an Object implementing the Enumeration interface, the next time youtry to use hasMoreElements() it will return false. Many developers are not

Use the fillInStackTrace() method to rethrow a Throwable type of exceptional condition in your code. This is useful if you want to rethrow a exception occurred while using a method

Validating user input that is typed into a JTextField can becumbersome, especially if the input string must be converted to anumeric value such as an int. By subclassing JTextField, however,

The SELECT INTO statement is a combination of the SELECT and INSERT T-SQL commands, that lets you create a new table from a subset of the rows and/or the columns

The keywords false and true are Boolean literals that evaluate to 0 and 1 respectively. Note that in other programming language, VB for instance, false equals -1 and true equals