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The Latest

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Changing a Layer Through a Link

Question: Can I change the text of my layer through a link? I’ve heard it’s impossible and that I have to change the visibility of the layer and replace it

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Performing File Operations With the File Class

You can use the File class (see Tips: “Constructing a File Class” and “Manipulating File Names With the File Class”) to perform operations on files that reside on your operating

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Manipulating File Names With the File Class

Java defines a File class (see Tip: “Constructing a File Class”) that you can use to manipulate the file name and perform file-related operations on the underlying file system (see

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Constructing a File Class

Java defines a File class that represents a name of a file on your operating system’s file system. You can use the File class to manipulate the file name, which

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Printing DHTML (CSS) in Netscape 4.0+

Question: I’ve put together an intranet site that uses JavaScript functions that put together a page. For example, the header section, body section, footer section, sidebar, and so on are

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Debugging With the Java Object’s toString() Method

Java’s Object class provides a method called toString() that returns the string representation of the object on which it is called. The method signature for toString() is: public String toString

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Interface

Question: What’s an interface in Java programming? Answer: Conceptually, an interface is a class that defines a set of methods with no implementation. It is analagous to a pure virtual

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Variable Declaration

Question: I understand that Java variables can be declared public, private, or protected using a similar syntax as C/C++ where the access modifier is placed before the column of variables.

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Hardware config. development server

Question: I plan to create a SQL Server 7 database containing about 40 – 70GB of data. The data will be generated by queries. How should I spend my money

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Alert Method Cannot be Modified From JavaScript

Question: Is there any way to change the font sizes and/or color scheme of the alert box? Answer: Both the alert and confirm commands rely on a platform’s standard message

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SQL Server Query/Reports Tool.

Question: Can you suggest a good SQL Server query/reporting tool suitable for end users who are used to using the MS Access query builder/report generator? Answer: Why not stick with

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Relational Database vs Flatfile

Question: My company is in the process of evaluating packages to replace our current business application. All but one of them run on a relational database architecture. The other one

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Watching Index Use

Question: The goal is to watch queries for their use, nonuse, or abuse of indices (using SQL Server 6.5). One of the problems is to be sure that a given

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Access Modifiers

Question: When should I make member variables protected and when should I make them private? Is it a good practice to ignore protected variables? It seems to me that most

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Copying data

Question: Is it possible to select only certain records from a table and copy those records to a new table? Answer: The easiest way to move only certain records from

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Power Script

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

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Testing String Equality

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

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Java numerical performance

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

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MFC applications

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

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obj files

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

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Two-way list with one pointer

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

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Function Pointers

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.

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Executing external programs

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

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Generating a Compiler Warning

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

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First Visible List Row

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

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strchr

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

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C programs to assembly programs

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

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Integer Size

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