Java tutorial
import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; public class Main { public static void main(String[] a) throws Exception { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice[] screenDevices = ge.getScreenDevices(); for (int i = 0; i < screenDevices.length; i++) System.out.println(screenDevices[i].getIDstring()); } }