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Classes in sun.* packages

All the classes in sun.* that accompany the Sun JDK are provided assupport classes that are used to implement specific sets of functionalityfor the core JDK classes. The classes in

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Converting a String into an int

The Java core API possesses a method equivalent to the C atoi() function in Java. The java.lang.Integer class contains a method called parseInt()which will convert a String into an int.

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Generating Random Numbers

The java.util package contains a class called Random which you can useto generate random numbers. A Random object represents a repeatingpseudo-random sequence of numbers. You can either fetch the next

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Array Reflection

The java.lang.reflect package provides an Array class through whichthe values of an array can be accessed. It is usually more effectiveto cast the array after it has been obtained through

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Java Arrays

C programmers are used to dealing with multidimensional arrays as chunksof contiguous memory which can be accessed through pointer arithmetic.In Java, an array is an actual object, and a multidimensional

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Components Help Team Based Development

Aside from fitting well with the Microsoft environment, creating components and component based software also works well with the management and tracking of development teams. Components naturally divide into manageable

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Performance Monitor Defaults

On NT, do you ever wonder why Performance Monitor starts up blank on some computers, and others have process monitored automatically upon start up? Well, Performance Monitor first looks for

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Naming Standards Beyond Programming

Naming standards apply to areas besides only those of developers and source code. All areas of a software solution benefit under a consistent naming process. SQL Server table names and

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Avoid Monolithic Tables in SQL Server

You can improve SQL server performance if you avoid creating tables in a monolithic fashion. By monolithic I mean tables that have dozens and dozens of fields that are not

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Exceptions are Always Passed by Value

The exception handling (EH) mechanism disables the possibility of passing a thrown exception by reference or through a pointer. This is due to the way this mechanism is implemented: when

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Enhancing Performance of Legacy Software

When you port pure C code to a C++ compiler, you may discover slight performance degradation. This is not a fault in the programming language or the compiler, but a

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Use Toolbar-Style Title Bars

To make a form use a small toolbar-style title bar, set the form’s WS_EX_TOOLWINDOW extended style: Declare Function GetWindowLong Lib “user32” _ Alias “GetWindowLongA” ( _ ByVal hwnd As Long,

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Use a Struct Instead of a Long Argument List

Functions having a long list of arguments such as: void retrieve(const string& title, const string& author, int ISBN, int year, bool& inStore); can become a maintenance problem, since their argument

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Implement a Binary Tree

A binary search tree can be useful when you have to traverse a lot of data in sorted order. As this CBinarySearchTree class demonstrates, you can implement binary search trees

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Modify a Toolbar’s Image List Control

Have you ever tried to create tools on a toolbar using an image list, only to find that you must detach the toolbar from the list and reset all the

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Keeping Things Fresh

Sometimes you might need a browser to keep reloading the latest version of a page automatically. A good example of this is a page that displays an image from a

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What’s the Status?

You can use the browser’s status bar to give users extra information about the page that they’re viewing. Here’s an example of how to do it by using a JavaScript

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Easily Create All Directories in a Path

Use this code to create a tree of folders on Windows 95 or NT 4.0 in one line: Private Declare Function _ MakeSureDirectoryPathExists Lib “IMAGEHLP.DLL” _ (ByVal DirPath As String)

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Cell Structures

If you use HTML tables to lay out your pages, it’s worth knowing about two properties of the tag that help you control the way table cells behave. The CELLSPACING

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Redirecting Visitors to a New Page Using JavaScript

You can automatically redirect visitors from one page to another in several ways. Here’s a flexible method that uses JavaScript to modify the href property of the location object in

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Padding Effect

Question: I’m trying to create a padding effect around this box of text that glides on to the screen from the right. I need to have it so that the

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Extra DLLs as a Result of Conditional Compilation

Starting with Visual Basic 4.0, you can add conditional compilation statements and use them to create different versions for 16-bit and 32-bit environments or to call debugging DLLs while testing

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Read and Write Arrays Quickly

You can read and write arrays quickly from files using Put and Get. This approach is faster than reading and writing the array one entry at a time: Dim arr(1

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Print Gray Lines and Areas

Black and white printers cannot print gray lines, but they can dither to create gray areas. To create a gray border around an area, draw thin gray boxes with DrawStyle