Hi, I'm working on a project which will allow data entry using the JOptionPane swing function. I understand that the swing function will not embed within the processing applet (especially when you see that the code is placed before the size() function!!) However, I am not particularly sure what I need to do to make the OptionPAne work. Any opinions greatly appreciated

Code:
     
       
import javax.swing.JOptionPane;

int x;
int y;
 
void setup() {
 
 String input1 = JOptionPane.showInputDialog("Enter width and height of window, separated by spaces");
 String[] args = split(input1);
 x = int(args[0]);
 y = int(args[1]);
 
 size(x, y);
   
}