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Question: I want to convert an integer into a string. Is there anything in Java similar to the itoa() function in C? Answer: To convert a number (or in fact,
Question: I work with large blobs and I would like that when I accessed them in the TDBMemo window they showed theyr final portion instead of their beginning. Is it
Question: How can I load a list like a TComboBox Items property with the list of valid aliases at runtime? Answer: There are two ways to do this. The first
Question: How do I get the field structures from a table, then load them intoa list of some sort? Answer: Accessing and Using the TFieldType While this isn’t the hardest
Question: I have a simple editor unit with a TMemo component whose text I want tosend to the printer. How can I do this? Answer: This is actually much easier
Question: What do the PRIVATE, PROTECTED, PUBLIC and PUBLISHED sections of a unit mean? Answer: They define the level of visibility of properties and methods of an object. In a
Question: In many of my applications, when I perform a query, I write itout to disk, using a TBatchMove. How can I create a component that willcombine the functionality of
Question: I created a UI for a selector guide using Frame, Menubar andMenuItems. I am having trouble writing the event handling; specifically, Ineed to see an example using replaceText when
Question: For instance, I’d like to use a DBGrid as a navigating tool as follows:Clients table with standard name, phone number etcOne DBText for each editable fieldDBGrid contains just the
Question: Is there a SQL equivalent to Delphi’s Pos() function? Answer: You bet. It’s called the SUBSTRING function. Like the Pos function,the SUBSTRINGfunction in SQL will return a substring of
Question: I created a new edit control component which I derived from TEdit,however, when I added it to the component palette, it has the samebitmap as TEdit. How do I
Question: I want to display a scrolling list of items from a database: product | description | manu | expiration | product | description | manu | expiration | product
Question: When dragging and dropping fields from the table editor onto a form, the field text appears above the field. For the sake of faster development, is there any way
Question: *Delphi will not start anymore after adding component.*In Delphi 2.01 C/S after compiling a program and then changing the .DCL with Open Library or compiling a new component library
Question: If I have an applet on one HTML page, I can useAppletContext() to cause a new HTML page to becreated. How do I control the size of the Netscapewindow
Question: I have written an applet that creates a graph from the resultsof a query of our Oracle database. The graph looks good in the browser(Netscape 3.0), but if I
Question: I created a simple abort dialog box with one button. During a long query I want to display my box so the user can abort. The dialog box creates
Question: If I have: abstract class A; class B extends A; class C extends A; and I want to make an array of class A objects in order to access
Question: Is there a way to make a binary executable from Java code? Answer: There are several stunts you could try in order to accomplish this,but they all cripple the
Question: How can I include random numbers drawn from a Poissondistribution in my applications? There is only a Gaussian distribution in java.util.Random. Answer: Well, this one is a little off
Question: How can I program a form to submit multiple queries and show each response in a different frame? Answer: In JavaScript, the onClick event handler can be used to
Question: How can I add a new menu item to the systemmenu application? Answer: Forthe most part, you’ll never have a need for this. But it is useful for setting
Question: How can I resize forms independent of screen resolution? Answer: The following code comes to us via Peter Jagielski, a formerBorland engineer, and myself. Peteris responsible for the SetSize
Question: How can I force a drop-down combo to drop its list down? Answer: This is done by using a Windows message called CB_SHOWDROPDOWN. I recommend that you look in
Question: I’ve read, in several places, that Java sets bit-size and format for numeric representation internally. I can’t find anything that says Java also dictates how the data will be
Question: I read(somewhere) that the Java spec. allows for applet access to the local diskin a restricted way. That is, the client should be able to specify adirectory on the
Question: I am trying to make an HTML page with many applets running concurrently.Unfortunately, an applet that I created uses up much of the CPU time andslows all the other
Question: The ‘greater-than’ vs. ‘comment’ dilemna Answer: There is a trick in writing JavaScripts which all developers should learn as soon as possible. When putting a script in your HTML,
Question: The new operator allocates memory for objects.How isthis memory deallocated? Answer: If you have ever programmed in C++, you might wonder why JavaScript doesnot have a delete operator to
Question: How do I restore a window’s size and position? Answer: This new tip comes from Hamish. He has converteda TurboPascalfor Windows routine that allows you to save and restore
ith the release of Visual Studio 2008, Microsoft has updated the C# language to its latest version, 3.0. C# 3.0, contains several key language enhancements
The code below contains standard, pre-defined macros used at runtime to determine whether a C or C++ compiler was used to compile the code. For
To get the current date, your first instinct is probably to use the java.util.Date class. However, this class has so many deprecated methods that it’s
In ASP.NET, a web form’s title is determined by the HTML View’s Title attribute. However, there is no property in the default (or any other
hen you need to develop a web form with a special design and great effects, you will probably elect to use Flash. But building and
he book A Practical Guide to Ubuntu Linux walks you through every feature and technique you need to know about Ubuntu Linux, from installing Ubuntu—using
ith the release of Visual Studio 2008, Microsoft has updated the C# language to its latest version, 3.0. C# 3.0, contains several key language enhancements
f you’ve ever worked with sophisticated database systems or large applications you’ve probably accumulated sizable libraries of stored procedure code. Such libraries typically hold a
he general-purpose XML transformer and/or validator discussed here, named “XmlTransform” operates on an arbitrarily deep directory tree containing files you want to transform. As output
ne complaint about Microsoft Windows SharePoint Services (WSS) 2.0 and Microsoft SharePoint Portal Server 2003 was the difficulty in making changes to the environment after
racking data changes is an essential requirement in many software, application, and business-integration scenarios. Rigorously implementing this requirement is relatively difficult because modeling and working
ne of Silverlight’s key strengths is its ability to provide rich, interactive features. Besides using it to perform cool animations and transformations on graphics and