Netscape Displays a Blank Page
Question: My Web page works fine using Internet Explorer but if view with Netscape it displays a blank page. I think it has something to do with the table commands,
Question: My Web page works fine using Internet Explorer but if view with Netscape it displays a blank page. I think it has something to do with the table commands,
Question: When designing a form, like a login page, how do I make the cursor automatically sit in the first form field? For example, I ask for an admin number
Question: I’d like to implement a script on my Web site that I’ve seen on other sites. This script asks visitors to register for free through a form as a
Question: How do I delete an item from Favorites under Windows NT 4.0? Answer: Under Windows NT 4.0, the favorites are saved in this folder: C:WINNTProfilesFavorites You can delete items
In C, the size of an enumeration equals the sizeof(int). In C++, the underlying type for an enumeration is not necessarily an int–it can be smaller. Furthermore, if an enumerator’s
There’s a mysterious error that users of some builds of Internet Explorer 5 may encounter on your site if you use Active Server Pages’ Response.Redirect method. Some users see this
The java.reflect package enables a Java program to invoke methods on classes using the string names of the methods. This feature is the basis of the interaction between a Java
Use this code in your C++ executable to start MS SQL Server dynamically on aWindows NT machine. Link to w95scm.lib, which is provided with the SQL 7.0 CD. #include “wn95scm.h”
Two conundrums are associated with inline functions. The first has to do with maintenance. A function can begin its life as a slim inline function, offering the benefits that are
Using the javac utility provided with the Java Development Kit (JDK) 1.1.x to compile a large number of source files often fails with an OutOfMemoryError. To avoid this error, you
Although it is common to use repeated Response.Write statements in an Active Server Pages script, you may not be getting the most out of your Web server. Each time you
Question: Can I pass the address of a PowerBuilder function as an argument to an external function located in a dll? The dll documentation shows that it expects the address
Question: How can I support 64-bit integers on a 32-bit system? I need to do division on numbers exceeding 4.3 billion. I have the resaults in a char value, and
Question: Assume that you have a class Distance and two objects dist1 and dist2. You have initialized the object dist1. Now you do: Distance dist2(dist1) to create a copy of
Question: I am teaching an introductory C++ course at thehigh school level. My textbook briefly coversdata files–sequential access–but doesn’t provide many examples of how to write/read multiple variables. Where would
Question: How do I convert a DOS file into a Windows program? Answer: Unfortunately, not very easily. While DOS programs will run under Windows and you may also want to
Question: int num = 50;int **stuff;stuff = new int* [num];for (int i = 0 ; i < num ; ++i) stuff[i] = new int [num]; The code above is copied
Question: Functions are inherited easily. But if you have a variable in the base class and you want have the same variable but with a different type in the derived
Question: How does one go about disabling/enabling buttons and check boxes in dialogs based on the state of other buttons or check boxes? The controls in question are of the
Question: I was trying to do some direct memory stuff (writing to the DOS console buffer or a graphics screen) using my Visual C++ compiler. Unfortunately, the compiler is telling
Question: I would like to know what is the difference in C between opening a file opened in binary or text mode. Answer: The primary difference is in the handling
Question: I am creating a Windows app using CC++. I have been using a shareware C compiler and a shareware resource compiler. I have compiled my .rc file into a
Question: In VB, how do you rename a file (at runtime)? Answer: Use the FileSystem object (Microsoft Scripting Runtime, SCRRUN.dll) as follows: Dim fs As New FileSystemObjectDim f As FileSet
Using a text box and submit button, you can validate an e-mail address to make sure there is only one @ sign and that it is not at the beginning
On some occasions, the performance boost that can result from moving declarations is quite considerable. Consider this example: void use() { string s1; if (condition == false){ return; //s1 was
Java’s PipedInputStream and PipedOutputStream classes allow you to write data to an OutputStream object and to read this data from an InputStream object (see the tips “Pass Data Between Threads
Web authors should be used to using the ALT tag to provide a textual label for an image. However, you can’t apply ALT text to a textual link, and most
Objects are made serializable by implementing the java.io.Serializable interface. In general, when you serialize an object instance, all of the instance’s fields are considered to be part of its state,
A downcast is a cast from a base to a derived object. Before the introduction of RTTI to the language, downcasts were regarded as bad programming practice–they were unsafe and
A compiler can automatically optimize the code by unrolling loops. Consider this code: int *buff = new int[3]; for (int i =0; i