Question: Is there a better way to scope constant values within a class other than by using “enum”? class Foo {public: enum { valueOne = 1, valueTwo = 2 }

Question: If I include a .js file using the src attribute of a script tag and then I need to change the content of the .js file (perhaps to correct

Question: How can I develop a report such that the user can choose what fields of a (single) table should be retrieved and printed? For example, a customer table with

Question: I am running Microsoft Exchange 5.5 Server with Microsoft Outlook 2000 as client software. For my remote users, they are using the offline folders. Every time a user dials

Question: I have a series of strings that I wish to store in the program directory. I want to save them all to the same file and be able to

Question: Is it possible to keep someone from downloading an image from my Web site? Answer: It’s certainly possible to secure some of the files on your Web site. The

Question: I am currently running Informix Dynamic Server 2000 version 9.20 TC1 on an NT server, Service Pack 6a. I have existing Visual Basic 5 applications that are using ADO

Question: I need some help with the DATETIME data type conversion. I have an Informix database running in a UNIX environment and I need to insert the system hour into

Question: How can I get the source code from EXE files? Does it matter if they are read-only? Answer: This question is asked very frequently. However, the answer is always

Question: What does the modulus (%) operator do? Answer: The modulus operator returns the remainder of a division operation. For example, 5%2 equals 1 because dividing 5 by 2 gives

Question: What is the proper method(s) to delete a column from a table or expand the size of a column in a table? Adding is easy. Deleting and changing obviously

Question: We have a requirement to send a report (a datawindow) to the users/vendors through e-mail. Can I send the Web page with the .psr file so that the user

Question: I’m trying to write a program that has a pointer to a private member function of a class. A public member function calls some of the private functions by

Question: What is a segmentation fault? I get it when I try to output an integer. (It’s a very basic program: it reads in an integer and spits it back

Question: I have IDS 7.31.UC2A and I want to register Informix OLE DB Provider on this database server. I need the %INFORMIXDIR%etccoledbp.sql script for running it against the sysmaster. Can

Question: I have encountered a problem as follows: void foo(const int& var){ foo2(var);}void foo2(int& var)… So what I did was void foo(const int& var){ foo2((int&)var); ^^^^^^} and it compiled *_*

Question: I have a number of datawindows in a window. In a post-construct event I am making a call to another datawindow. Every so often when I open the window

Question: I am an engineer at GNB Technologies and have been programming for quite some time. Last week a friend of mine asked me an interesting question that stumped me.

You can generate random numbers in JavaScript using the Math.random() method. This function returns a fractional random number between 0 and 1. Unlike other languages, JavaScript will initialize a random

Consider the following program: class Exception {}; int main() { try { throw Exception(); // where is the exception stored? } catch( Exception & ex) // catch by reference {}

The terms heap and free-store are used interchangeably when referring to dynamically allocated objects. Are there any differences between the two? Technically, free-store is an abstract term referring to unused

Suppose you have an application that reads input from the keyboard. How can you detect whether alphabetic data is being entered into an integer field from a cin statement? The

Suppose you have a class called A, which doesn’t have a default constructor, and you want to embed an instance of this class as a member of another class, B:

Does you compiler accept the following code? class A { public: void f(int); }; void (A::*pm)(int) = A::f; // #1 no ampersand before A::f A standard-compliant compiler should flag line

Question: How do I display the next page after a user enters data into a field and presses the Enter key? Answer: This is both possible and fairly easy. Here’s

Question: How can I generate a unique number using JavaScript? Answer: You can generate random numbers in JavaScript using the Math.random() method. This function returns a fractional random number between

Question: I call the following function to display the date in “month, date, year” format. It displays in the right format (for example, January 7, 2000) in Netscape 4.0. But