How to fix the problem with variables in processing?

Question

Arduino

There is an arduino with a simple output of a variable to the com port, the program is elementary

int i;

void setup() {
  Serial.begin(9600);
}

void loop() {
  Serial.println(i);
  i++;
}

There is a program written in processing

import processing.serial.*;

Serial myPort;  
int val; 

PFont font;

void setup()
{
  font = loadFont("Rockwell-CondensedBold-48.vlw");
  size(720, 1280);
  String portName = Serial.list()[0];
  myPort = new Serial(this, portName, 9600);
}

void draw()
{

  background(0);
  textFont(font);

  if ( myPort.available() > 0) 
  {
    val = myPort.read();
  }

  text(val, width/2, height/2);
  println(val);
}

The problem is that when getting data for String everything works adequately, but when getting for int , the val variable rises to 55 and starts counting again.