The reason I am using myPort = new Serial(this, Serial.list()[0], 9600); is because on one of the examples the code says that using that code any COM PORT when I plug my devices it ill take that new port and uses that one. In this case, I dont have to care about the port number and just write this code.
// Example by Tom Igoe
import processing.serial.*;
// The serial port:
Serial myPort;
void setup() {
// List all the available serial ports:
println(Serial.list());
// Open the port you are using at the rate you want:
myPort = new Serial(this, Serial.list()[0], 9600);
}
void draw() {
while (myPort.available() > 0) {
int inByte = myPort.read();
println(inByte);
}
}
Thanks to everyone !!