Android :: Standard Libraries Not Imported In Phone Project

I'm new to Java/Eclipse/Android, so this is probably an easy (if not stupid) question:
After creating a new Android project, I want to import some (what I think are standard) Java libraries. However, some import statements throw an error:
HelloAndroid.java:
import java.awt.Color; (The import java.awt.Color cannot be resolved)
import javax.imageio.ImageIO; (The import javax.imageio cannot be resolved)
while others don't:
import java.io.File; (no error)
I've done some googling and tried to add these classes to my class path by going to project->properties->libraries but I haven't been able to figure out what to do exactly.