I am trying to write a proof-of-concept program which uses the Java swing libraries to create a GUI which controls the brightness of an LED on an Arduino. I use the Java swing libraries to create a window in the application; the only problem is that the normal, default Processing window also shows up. Is there any way to make this window not appear when the application runs? I tried setting its dimensions to (0,0) which appeared to work at first but didn't actually allow the loop() function to run.

Here is my code, in case it's helpful:

1. import java.awt.*;
   import javax.swing.*;
   import cc.arduino.*;
   import processing.serial.*;
   
   
   Arduino arduino;
   void setup() {
     println(Arduino.list());
     arduino = new Arduino(this, Arduino.list()[1], 57600);
     arduino.pinMode(11, Arduino.OUTPUT);
     arduino.pinMode(13, Arduino.OUTPUT);
     arduino.digitalWrite(13, Arduino.HIGH);
     createGUI();
     size(1,1);
   }
   
   JSlider slider;
   JLabel label;
   JCheckBox cb;
   static final int maxAmount = 255, minAmount = 0, initAmount = 100;
   int value;
   public void createGUI() {
     //Main panel
     JFrame frame = new JFrame("Arduino Sliders");
     JPanel mainPanel = new JPanel();
     mainPanel.setLayout(new GridLayout(0,1));
     //subpanels
     JPanel panel1 = new JPanel();
     JPanel panel2 = new JPanel();
     JPanel panel3 = new JPanel();
     //create slider
     slider = new JSlider(JSlider.HORIZONTAL, minAmount, maxAmount, initAmount);
     //create label
     label = new JLabel();
     //create checkbox
     cb = new JCheckBox("LED On/Off", false);
     //Show the whole thing
     panel1.add(label);
     panel2.add(slider);
     panel3.add(cb);
     mainPanel.add(panel1);
     mainPanel.add(panel2);
     mainPanel.add(panel3);
     frame.add(mainPanel);
     frame.pack();
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     frame.setVisible(true);
   }
    
   void draw() {
     if(cb.isSelected()) {
       value = slider.getValue();
       int valuePercent = (int) map(value, 0, 255, 0, 100);
       label.setText("Brightness: " + valuePercent + "%");
       arduino.analogWrite(11, value);
       cb.setLabel("Turn off");
     }
     else {
       arduino.analogWrite(11, 0);
       label.setText("LED is off");
       cb.setLabel("Turn On");
     }
   }