ohmmeter processing

import cc.arduino.*;
import processing.serial.*;

Serial port;
String resistor="-";
PFont font;
void setup()
{
  String portName=Serial.list()[0];
  port = new Serial(this, portName, 9600);
  size(250, 250);
  background(10,10,10);
  smooth();
  textFont(createFont("Georgia", 36));
  textAlign(CENTER);

}

void draw()
{
  background(10);
  if(port.available()>0)
  {
    resistor=port.readString();
//    delay(10);
  }
  fill(255, 255, 255);

  text("Resistencia:", height/2, width/4);
  text(resistor, height/2, width/2);
  delay(1000);
}