WritableRaster : Overlaying raster considering transparency.

I'm working with RGBA images and I want to overlay some by some others, if I use setRect([...]) function a part of the raster will just be replaced.Is there a way to use overlaying with transparency ?
[215 byte] By [Sergejavaa] at [2007-10-3 3:44:11]
# 1
Ok, I figured a way to do it.First create a bufferedImage, fill it with the raster to overlay with and draw it using graphics2D.
Sergejavaa at 2007-7-14 21:40:20 > top of Java-index,Desktop,Core GUI APIs...