February 19, 2000

DevX - Software Development Resource

Extract Red,Green,Blue components of a color

If you have a 32-bit color value in RGB format, you can extract its Red, Green and Blue components using the following routines: Function GetRed(ByVal lColor As Long) As Long

DevX - Software Development Resource

Quickly create a copy of an ADO Recordset

When you want to process the data in a Recordset without affecting the actual values in the database, often the Clone method isn’t what you need. For example, if you

DevX - Software Development Resource

Convert a color value to a gray scale

When you have a 32-bit color value, you can convert it to a grey-scale – that is, you can determine how it would appear on a monochromatic display (more or

DevX - Software Development Resource

Provide Default Values for Applet Parameters

You can customize your applets by providing parameters at runtime in . But it is a good practice to always provide default values, when specific values for parameters are not

DevX - Software Development Resource

Generate Random Numbers in Java

You can generate Random numbers in Java using the Random class available in java.util package. The following is a code which generates Random numbers between 0 and 100: import java.util.Random

DevX - Software Development Resource

Passing Primitive Data by Reference

Primitive datatypes in Java are always a passby value. You can pass them by reference, by wrapping the data in to single element array. Here is the code (Tested on