Question: How can you caluculate interest using only integers and no double or floats? Answer: This question can be of interest for anyone who is confined to ineteger arithmetic. Many

Question: How do I pass a function as a parameter? Answer: First, let’s distinguish between a parameter and an argument. The parameter is the type of the object passed. An

Question: How can I declare a constant object that is actually constant? Answer: Here’s an example: const Date d; //create a const Date object Note that you can only invoke

Question: I’m trying to find information regarding anonymous unions in C++. I hear that in C++, one is able to declare a union such as: union example{ int a; int

Question: I can’t create an instance of the derived class using operator new. The base and the derived classes differ only by a virtual function. The error messages I receive

Visual Basic doesn’t provide any way to declare an array and initialize its elements at the same time. In most cases you end up with setting individual elements one by

You can often use the Replace function in a smewhat unorthodox ways to simplify (and sometimes optimize) your code. For example, in order to count the number of occurrences of

I find the Replace function very useful when I want to avoid too many append operations just to insert non-printable characters. For example, the following statement: MsgBox “Disk not ready.”

To determine whether a String array contains a given item it seems that you can’t avoid writing a loop. However, you can do it with just one line of code,

Most API function that return a string require that you pass a buffer where they can place the result as a null-terminated ANSI string (a.k.a. ASCIIZ string). The calling code

Question: I created a program to Add User Account to my NT Server. It reads from a text file which provides the user info. Everything works fine, except that the

Question: I would like to know how to access a workstation which is configured and logged on to an NT domain, from another PC in a workgroup environment? Most of

Question: I need to know how to concatenate variables containing numbers, that is, string them together one after the other. Every method I know simply adds the various numbers together

Question: I’m creating a drag and drop program to design kitchens. How can I rotate a single picture using JavaScript? Answer: You can’t rotate an image using JavaScript. JavaScript doesn’t

Question: I am using the Dataspace and DataControl objects to interact with a database through Internet Explorer 4 using form elements. The data displays perfectly when I use this query:

Question: Can I use JavaScript to disable the one of menu items of Internet Explorer or Netscape Navigator? Answer: Sorry, you can’t modify the menus in Internet Explorer or Netscape

Question: What function would I use to take a given amount of money and add 6% sales tax? Answer: In JavaScript you could use: function addSalesTax(SubTotal){ return SubTotal * 1.06}

Question: How do I get the server date using JavaScript that is embedded in an HTML file? Answer: You can use server-side code (like Perl, ASP, and so forth) to

Question: I require Visual Basic code to resolve IP addresses stored in firewall logs generated by Checkpoint Firewall1. The aim is to report company access by user (assigned dedicated IP

Question: How do you reference an external JavaScript file from an HTML page? Answer: You can reference an external JavaScript file from your HTML page similar to the way you’d

Question: I have alerts and prompts intermingled on a page that collects information from the user. Is there a way to align them all so that they do not appear

Question: I want to close the window that opened a new window using window.opener.close().The problem is when this code is executed, some confirmation message pops up. Is there any way

Question: How do I convert an integer/float type into a string? Answer: Converting numbers to strings is much easier than you think. Because JavaScript is an untyped language, the interpreter

Question: I’ve been told that you cannot have dynamic virtual includes inJSP. Is this true? For example, is something like this going tocause problems? Answer: JSP is still relatively new,

Question: What is the difference between servlets and Java Server Pages? Which is preferred? Answer: Servlets and Java Server Pages are complementary APIs, both providinga means for generating dynamic Web

VB won’t let you save a breakpoint when you have a lengthy debugging session. Use Debug.Assert to create persistent breakpoints that trigger when you are in the environment, but not

You can print the entire document from the JavaScript using Parent.Print() function. Similarly, to print a frame from JavaScript, you can use parent.framename.print() in the code. For example, this code

ADO sets both the EOF and BOF properties to true if the recordset is empty. You can check these properties to determine if the recordset is empty or not instead

RDO and DAO data access components handle collisions while updating a database differently than the ADO data access component. The rdoResultset and Recordset objects contain BatchCollisionCount properties that indicate how