
Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.








Question: I am reading in an external data file using i_file = fileopen (“c:dataamt.dat”, linemode!,read!) fileread (i_file, filelines) fileclose (i_file) How would you avoid hardcoding the data file so that
Question: This is a section from a program I am writing. It goes through the first if statement fine, but when it gets to the second if statement it doesn’t
Question: I’m thinking of reimplementing a computationally intensive scientific app in Java. What fraction of native C speed do people usually see with current Java compilers? Answer: This is not
Question: I have no experience with MFC applications, and I am wondering if there is a URL that gives very basic samples of code for applications. I can’t even figure
Question: Do you know of any utilities that can convert an *.obj file back to its original code (*.cpp/*.c)? Answer: The simple answer is that there is no hope of
Question: How can I make a two-way linked list with only one pointer? Answer: If, by two-way linked list, you mean a linked list that can be traversed from either
Question: I’m converting an fsm from C to Java. The C code has a struct and one of the members contains a pointer that contains the address of a function.
Question: I know that you can execute a program from a known drive using the system command, but what if you don’t know the drive letter? I am trying to
Question: I am looking for a way to get the javac compiler to generate a warning message that I specify in my code when it is compiling my code. I
Question: Is there a way to find out the first visible row in a List? Answer: The standard AWT java.awt.List class does not provide a means for determining the first
Question: Where can I see the source code to the functionstrchr? Answer: If you purchase a compiler such as the professional edition of VC++, the source code for all run-time
Question: How can I do a C++ program that converts simple C programs to assembly programs? Answer: This is a very complicated task. The first step would be a parser
Question: Our maximum int value is 32,768, but our minimum int value is -32,767. Why aren’t they the same? Answer: Because a short integer (2 bytes or 16 bits) can
Question: I know that Netscape supports layers in JavaScript. Is there any way to make them work in Microsoft Internet Explorer 4 or 5? Answer: Unfortunately, no. Microsoft and Netscape
Question: I’m working on PowerBuilder 6 under a Windows environment. I’m calling a global function in a datawindow object. This function gets called perfectly in the development environment, but it
Question: Why can’t I revoke the “update” permission from four tables in a database in the object permissions GUI? I have successfully revoked “update” from all other tables in the
Question: I’ve used your technique for getting the icon in the tray and for being notified when the user has clicked on it, but I’m having a problem getting a
Question: When inserting data into a table that has an identity column that is also the key, the following error occurs: Non-Blob column in table is required to perform operation.
Question: Could you please explain, along with examples, how to use the commands GetFileTime and CompareFileTime? I read the help topics but find it hard to digest what they say.
Question: I have a database that I would like to navigate on the primary key in alphabetical order using SQL statements. I would like to find out if there is
Question: I am trying to list out the contents of a field, and there are so many, that I need to send the output to a file. Can you tell
If you use an HTML form at your Web site, you may not want anyone to submit the form if required fields are left blank. You can check for blank
A well-developed user interface will make it clear which components in a dialog are available to receive input from the user. The AWT Component class has a setEnabled method for
Question: I am trying to run a DOS program using the folowing syntax: WinExec(‘Command.com /c c: emaddr CN=variable’, wn_shownormal); I can’t manage to get it to work with a variable
Question: Is it possible to control the printed page size and layout in DHTML? In other words, can I control how a DHTML page looks when it is printed and
Question: I want to split a TXT file into smaller TXT files. The program should split the file every time there are three empty lines. For example: Paragraph1Paragraph2 Paragraph1 and
Question: I have a table that contains the values returned from a SQL database. I have created a division within each cell. The ID value for the division is the
Question: I’m using Delphi 2.0 Client/Server. The Delphi Object Pascal user’s guide says that the Integer size is 2 bytes (signed 16-bit with Range -32768-32768). But when I do the
Question: I am working on a project that reads in teletext information from the COM port in 8-bit binary form. Since ASCII does not represent teletext graphical characters, I have
The default constructor, copy constructor, assignment operator, and destructor are special member functions. The implementation implicitly declares these member functions for a class when the program does not explicitly declare







