Question: Does Java have a MOD function? Answer: The Java language has a built-in operator to perform modulus division. It is the same as that of the C and C++

Question: How can I call the Windows color dialog box in Powerbuilder 6.0? Answer: To use the Windows standard color chooser dialog, you will need to declare and use some

Question: I can’t use the LogonUser function because I don’tknow how to set (with program, if possible) the SE_TCB_NAME privilege. When I use your program that shows the use of

Question: My batch files don’t run anymore. I’ve changed the association for editting them, and now that is the default action. Also, the “add” button is disabled in the edit

Question: How can I find and replace a substring of a String? Answer: The String class is immutable. That is, once you have created a String, you cannot change its

You may have been surprised and frustrated to find that in some cases, the Java Virtual Machine (JVM) does not stop running when your application exits the static main() method.

JavaScript has C-like syntax. Therefore, it is possible to use the ?: conditional operator, which is a shortcut for the if-else block: Expression?true part:false part Try this example:

One of the hardest tasks until now has been supporting searches on text fields. As we know, indexes can’t be built on text fields and so searches on these fields

When an exception is thrown, the runtime mechanism first searches for an appropriate handler (a catch statement) for it in the current scope. If such a handler does not exist,

Question: Is there any way to resize dialog boxes in Internet Explorer? Answer: No, there isn’t any way to resize dialog boxes in IE. The size of the dialogs displayed

Developers commonly want to ensure that a user accesses only the data through their application. After all, not every person should be let near a server with Microsoft Access. However,

The Active Server Pages Session object includes an under-used property called LCID. The LCID, or locale identifier, helps you format your ASP code to suit your target audience.For instance, Canada

The terms abstract data type and abstract class refer to two entirely different concepts, although both of them use the word ‘abstract’ due to a historical accident. An abstract data

Java’s PipedInputStream and PipedOutputStream classes allow you to write data to an OutputStream object and to read this data from an InputStream object (see tip “Pass Data Between Threads Using

As a database administrator, you will unfortunately be called upon to respond at times when you are not at your best. It is exactly at those times that you need

Sometimes you may want to automatically select all the text in a text box when it receives focus. This saves your user from having to hit delete or backspace to

The access specifier of a base class member can be changed in a derived class by an access declaration, as in this example: class A{public: int n; };class D :

In Java 1.0.2, the java.util.Date class was used to represent a point in time, as well as to parse and format date values. However, as part of the internationalization features

The VBA language offers the Int() function, which returns the integer equal or lower than a given value, but lacks a similar function that returns the integer equal or higher

You can programmatically display the standard DataLink property dialog box to let the end user manually build a connection string, that you can later assign to the ConnectionString of an

Unless you have good reason to do otherwise, you should always use standard fonts in your programs, because this ensures that your application will work on every Windows system.If you

The CInt() function rounds to the nearest integer value. In other words, CInt(2.4) returns 2, and CInt(2.6) returns 3. This function exhibits an under-documented behavior when the fractional part is

Question: I’m trying to make an animated GIF move across a Web page, but the animation freezes in both Internet Explorer 4 and Netscape Navigator 4. I tried to do

When working with integer expressions there is often the risk of raising the “Overflow” error. More specifically, there can be two occasions when this frequently occurs:When you multiply or add

Private Declare Function CLSIDFromProgID Lib “ole32.dll” (ByVal lpszProgID As _ Long, pCLSID As Any) As LongPrivate Declare Function StringFromCLSID Lib “ole32.dll” (pCLSID As Any, _ lpszProgID As Long) As LongPrivate

Private Declare Function ProgIDFromCLSID Lib “ole32.dll” (pCLSID As Any, _ lpszProgID As Long) As LongPrivate Declare Function CLSIDFromString Lib “ole32.dll” (ByVal lpszProgID As _ Long, pCLSID As Any) As LongPrivate

The clock applet that comes with Microsoft Plus! has an interesting feature: Its window is round instead of rectangular. Surprisingly, giving your form an odd shape is easy. Add this

If you want to pass a parameter to a subroutine, use this code: Call doFormat(txtPerson) You can also call the subroutine without the Call statement. However, if you don’t include

In an effort to simplify life for administrators, SQL Server 7 allows database files to grow automatically. That’s good news for you, since you will no longer be woken up

The Dictionary object can contain items, which can be any form of data, just like a collection. However, the Dictionary object has many advantages over a collection. It allows retrieval