Java 获取屏幕的宽、高

 import java.awt.Toolkit;

 public class GetScreenSize {
     public static void main(String[] args) {
         int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
         int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
         System.out.println("The width of screen is " + screenWidth + ", and the height of screen is " + screenHeight);
     }
 }

 import java.awt.Dimension;
 import java.awt.Toolkit;

 public class GetScreenSize {
     public static void main(String[] args) {
         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
         int screenWidth = (int)screenSize.getWidth();
         int screenHeight = (int)screenSize.getHeight();
         System.out.println("The width of screen is " + screenWidth + ", and the height of screen is " + screenHeight);
     }
 }

参考：https://blog.****.net/m_wbcg/article/details/55548654