Java color recognition

I happen to have a map, and it has 24 colors in it - I want to store the pixels having different colors (I know the RGB values) - how to do it? Can do it with another prog. language if it is impossible, and then import it somehow to java.

So is it possible, if so - how ?

This is what's wrong with programming in the world today: lack of basic understanding of logic and hierarchy. For example:

>>1
"I happen to have a map, and it has 24 colors in it"

Okay. Map consisting of colors. Check.

"I want to store the pixels"

What pixels? Where are these pixels coming from? What do they have to do with the Map of colors?

"having different colors"

Different from:

Each other?
From the colors in the map?
From some other unexplained source?