When you’re using the Palette Properties dialog box to add new JavaBeans components, there’s common to make a mistake when installing them from a package. On the Add From Package

A Java application accesses an ActiveX control via a set of .CLASS files. Preparing a control for use with VJ++ is a two-step process. First, you register the control using

When you construct a Color object in Java, you can supply the arguments in three ways. The most familiar way is to provide three int values each in the range

One of the most common mistakes that most less-experienced Java programmers make is the unnecessary copying of immutable objects. The problem is compounded by the fact that it is not

The Visual J++ Form Designer allows you to both anchor and dock controls on a form. When a control is anchored to an edge of its container, the distance between

Sometimes it is useful to be able to capture the output from a stack dump, redirect it to a string, and then, perhaps, to a window. Here is an example

Sometimes you write an applet that depends on a Microsoft Internet Explorer-specific extension which is not common to all browsers. How do you find out if the browser that’s running

Instead of creating a GridControl to retrieve row and column data from a table into a hash table, use a variant, as shown: variant = new Variant();for (row2get=0; row2get <

Developers should realize that only a few optimizations are supported by most Java compilers. That most Java compilers do little when it comes to optimizing code may be surprising, but

Println statements are very useful for debugging applications, but do you view the output when an applet is running in the debugger? By default, when you create a Visual J++

Question: A user tried to move an e-mail from the Inbox to another folder, and then clicked on his mailbox. The message disappeared from the Inbox, but he couldn’t find

Question: The department I am in would like to have a kind of “posting” center for questions or a kind of “discussion thread” area only accessible to our department. We

Question: I have a problem creating the same mailbox names with different domain names at one server (one site). How can I go about doing that? Or can I only

Question: When connecting to an Informix database using Visual InterDev and SCO Retriever 32 ODBC, I can see tables and column names but when I try to look at data,

Question: How do I build crosstabs in Visual FoxPro? Answer: Visual FoxPro has a wizard that helps you create a Crosstab query. From the Wizards submenu on the Tools menu,

Question: I would like some Visual FoxPro application as a starting guide in VFP 6. I’m finding it hard to add commands using a form. For example, I want to

Question: I need to delete certain characters from a string, particularly a money field in the format 99,999,999.99. Is there an easy way to delete the commas and period from

Question: As I understand it, the DECODE function or procedure is available in XPS 8.3 and IDS 2000 9.2 or above. Is it available in 7.2x? If not, is there

Question: Define a Web database, please. What are the advantages and disadvantages? How do I connect different software to the Web? Answer: A Web database is any database that you

Question: When e-mail messages are not being delivered and the MTA queue is backed up and all the services is running, what could be another step I can take to

Question: How do I display the rows of a table’s contents vertically? I want to list the tracks of a CD, LP, etc. from their table at the bottom of

Question: I am returning a resultset from an Informix Stored Procedure to VB6 via ODBC and ADO. Is there any way of returning the field names? At this point I

Question: In VB, I can use the function AddressOf. It is the return address of function WNDPROC. Is there a similar function in PowerBuilder? Answer: In PowerBuilder you cannot get

Question: We have set up a second Exchange server within our site and moved 170 mailboxes over to it. However, it does not appear that the mailbox data has transferred.

Question: How do I disable function keys in an application? Answer: You can disable function keys by using the ON KEY LABEL command. Putting an asterisk (*) after the key

Question: We have an existing application, which has been developed using ASP. The database being used is Oracle 8. Now, for a different customer, we want to port this application

Question: We are getting a divide-by-zero error running FoxPro for Windows 2.5 on a Novell server on the network on an NT workstation. Can I use the patch in version