How is the display and monitor settings management implemented in the system?

In Java, managing display and monitor settings is done through the GraphicsEnvironment class and related classes from the java.awt package.

Key points:

• GraphicsEnvironment.getLocalGraphicsEnvironment() allows obtaining the graphics environment object.
• The method getScreenDevices() returns an array of GraphicsDevice objects, each representing a monitor.
• Each GraphicsDevice provides a DisplayMode, which contains monitor parameters: resolution, refresh rate, color depth.
• To change display settings, you can use the setDisplayMode(DisplayMode dm) method on GraphicsDevice, if the device supports mode changes.

Example of retrieving monitor information:

import java.awt.*;

public class MonitorInfo {
    public static void main(String[] args) {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice[] gs = ge.getScreenDevices();

        for (int i = 0; i < gs.length; i++) {
            DisplayMode dm = gs[i].getDisplayMode();
            System.out.println("Monitor " + i + ": " + dm.getWidth() + "x" + dm.getHeight() + ", " + dm.getRefreshRate() + "Hz, bit depth: " + dm.getBitDepth());
        }
    }
}

Thus, Java provides tools for obtaining and changing monitor parameters through the AWT API.